Ecotec rough idle

The throttle-body can coke up with carbon, but this normally causes a high idle, rather than a rough idle. wafrederick. This results in a rough idle condition that can make you think it's an ignition system misfire. The check engine light came on and then the 'service traction control' came on but went off the next time I started it. Most mechanics charge 29. This is more common on the earlier 2002-2003 models I believe. 5. 2L ecotec engine The car has had a rough idle since I bought it but I just recently noticed that it stalls every once and while (maybe once or twice a week) sometimes when I shift into reverse, sometimes when a shift into park and one time it stalled when I pulled up to a red light really slowly. its a 1998 neon 2. Also last week I replaced all plugs and leads and found plugs 1, 3 and 5 had run rich and plugs 2, 4 and 6 had burned clean, maybe a little lean. The later Holden computers do "learn" how you drive and how the motor runs and applies this new-found logic to how it fuels and times the motor. It is part of GM’s Gen V Small Block engine design that’s known in trucks as EcoTec3, replacing the Vortec line. Feb 16, 2008 · i have an 2002 olds alero with a 2. (Toward the firewall, with two hex screws kinda hard to get to. Ive replaced fuel filter plugs. It's held on by  Aug 15, 2012 Rough idle and may stall. Oxygen sensors can control or contribute to many different engine functions, including fuel/air mixture, engine timing and engine combustion intervals. 3 engine is known for: bad idle air control valves and throttle control switches. Gasoline Leak: Fuel injector can crack or break, which will cause a gas leak. I have what sounds like an air leak coming from the coil pack when my engine is running, my car also revs to 2-3k when I am waiting to pull out of a junction for example this happens a lot of the time especially when the car is up to temperature, also have a rough idle, I scanned the car and got Rough idle – Ford June 5, 2014. I bought it brand new back in '07 so I am the only owner of this car. For the most part all it takes is a simple multimeter resistance test. 98 : ur 247t : dur @ . next i would check vacuum leak. The car idles very rough and the engine light is on. A damaged throttle body may cause your Check Engine light to come on. Best with 3. Ever since I bought it, it's had a rough idle and a rubbing noise coming from the front engine so I figured the cause was a loose timing chain. I plan on getting it up on stands and cleaning the old oil to try and locate the leak. No DTC, no pending DTC, all readings normal. I have removed the TB twice, the first time I cleaned it with a rag to see if it helped with the engine surging at low speeds & rpms in first gear. The tiny thing that keeps your car working, often falls prey to regular wear and tear, and therefore must be taken care of. it drives perfectly fine , even in park the engine runs fine, but once you shift it into drive it starts to idle rough . The idle may be unstable or a DTC may set if the throttle position is not learned. Even today, the idle is rough while sitting but smooths out when A/C is "The ignition control module might fail causing rough idling and difficulty starting. Im at a loss. 1. If a rough idle is present or one of the other symptoms, begin the process with the most likely cause first. 4L Ecotec engine, I've found that this "performance," while not wide-spread, is common enough that Buick should investigate this matter. Some soot from exhaud - hardway : Agreeing with the "Doc" and suspect as you do it's massively overfueling. Thought that it could be the IAC but wouldn't it do that always? Also where is the iac, I think I know where it is. any ideas on where to get that stuff? can i fit them on my vue if its made for a different ecotec model gm car? they make that stuff for other ecotec models (e. 4L engine. Damage to spark plugs or spark plug wires can cause a rough idle, as your engine is struggling to process Idle Engine Vibration when in gear L61 2. May 31, 2018 · Rough Idle and Hesitation. Also did the head gasket and timing chain, but still the same problem. 2 K Hz. May 21, 2018 · I explain what the most common problem and fix to your 2. . While there are a variety of reasons your Chevrolet Cavalier has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. org, is the worlds largest automotive enthusiast group exclusively geared towards the General Motors GM J-car platform including the Chevrolet Cavalier, Pontiac Sunfire, Pontiac Sunbird, Pontiac J 2000, Oldsmobile Firenza, Buick SkyHawk and Cadillac Cimarron. After that, it finally started to SLOWLY drop down to just over 1000 rpm, but it took another minute. i know what they are but dont know what could be causing the trouble. wh 99 suburban code P0302 Hey guys. How To Test The Alternator (2002-2005 2. Chevy Cobalt. 4. It's not right away. Hello All, Here is the problem I have. So, once there're visible signs of rough idling, troubleshoot the  I just figured that was on since it was riding so rough from the miss fire. Nov 27, 2017 · If you're experiencing a rough idle in an older vehicle with a carbureted engine, the process is a little different. (About a quart over 3 weeks have leaked out). Im in love with it. I got it back 5 days ago and it’s starting to do the same things again - idle rough and misfire OCCASIONALLY. the check engine light is on and it could be a sensor im guessing, any ideas what sensor it might be? or a possible cause? Hi I have a 2004 vy spac ecotec 3. all of a sudden it has started to run really rough as if it was only running on 5 cyclinders, have done a compression check and is all good, also change leads and I think though that the injectors fail slowly causing cylinders to run lean and if the problem isn't caught in the early stages then valve damage can result. It has the 2. If the old alternator was bad, the battery probably needs charging badly and the additional load causes the engine to run rougher than normal (at an unloaded idle) I took the car to the mechanic that found that the fault code was TPS related, he replaced the TPS and set the base idle screw to its correct position and it fixed the high idle and rough gear change issue. A week ago I noticed it was idling VERY rough. This plastic panel says Ecotec on it. The Ecotec Diesel Injection Curative Treatment ref. About 50-75 miles later, the crap hit the fan and I lost 95% of m Sometimes on start up I get a really rough idle, but a few quick revs and a bit of black smoke then all is good running wise. There is simply no room under the hood of the TR6 for the large box that holds the stock air filter. Rough idle. Bought it about 10 months ago. Hint: Use a descriptive title for your new message If you're looking for help and want to draw people in who can assist you, use a descriptive subject title when posting your message. 2006 Saturn Ion 2 Ecotec engine - High Idle after Throttle Body cleaning. 2 l Ecotec 4 cyl engine. Street / strip. May 31, 2012 · 05 cobalt ls 2. Nov 12, 2018 · Problem is, it's not idling rough. " I can feel a slight misfire at idle. it has progressivly got worse when plugged in to a computer by a mechanic he came up with nothing, i have so far changed coilpacks, leads, plugs, engine mounts and the gearbox mount Feb 06, 2010 · Hi! I looking for some help for a 2003 cavalier engine 2. Hi Austin, I wanted to thank you for having a helpful column. Someone suggesting a rocker arm. “We believe these are Ive got a zafira 1. Here the owners of these brands can come together on a common ground. Spark plug/spark plug wires. 2004 Saturn ION with Ecotec 2. This was the first engine in this family, featuring a Lotus-developed 16-valve cylinder head and a cast-iron cylinder block which was essentially the same as in Opel's 8-valve engines. You might also notice reduced power or a rough engine idle. Holden V6 Ecotec VS - VU 1993-2004. Average repair cost is $30 at 82,700 miles. 2. I have only owned my Cruze about 72 hours but I notice when I come to a complete stop the idle is rough or vibrates. I’m far from being an expert however one needs to start somewhere… Vehicle engines that have a bad oxygen sensor often run irregularly or roughly. Does anyone else feel a misfire on their L-series - Ecotec 2. 2 engine that has a rough idle when its in gear . This time I want to talk about the Ecotec ECM tuning changes done so far. Either unmetered air is entering the intake manifold or there is a lack of fuel pressure: Check the fuel cap for cracks and sealing and function; Lift the hood and make sure the oil filler cap is tight My olds alero with the 2. May 18, 2016 · Look for any vacuum hose that may have come out this would cause a rough idle and not necessary set a lean code condition Here on this Dodge a vacuum hose somehow was disconnected, this set a P0300, the find was easy, because you could here vacuum noise. 2003 Chevy Cavalier surging, rough idle, and sometimes stalling when A/C is on. Dealer says they saw the leak as well but it wasn’t the CAT. I've also got a replacement MAF sensor coming in. Air filter is fine. It's the circular bit under the "ecotec" cover. It has intermittent rough idle, missing at highway speed. Over time, as the pulley spins against the belt, both components will eventually start to wear. so basically you want your car to idle rough. Last mechanic said no codes??? After a computer reset (disconnect battery for 15 minutes, ignition switch to run for a minute, off, then start. Average repair cost is $3,000 at 66,500 miles. This can cause exhaust components to overheat, and 2008 colorado rough idle gm letter - rough idle 2008 3. Irregular idle speed. 2 ECOTEC, 97K miles. 6 16v z16xe engine fitted, the problem im having is it idles erratic now and then and sometimes cuts out, it started doing it about every 1000 mile then its got worse until it was about every 30 mile and i got fault code 0130 - low voltage on front lambda, i looked at the live data from the sensor and it was showing very low, i was lucky to have a new sensor so i fitted it Jan 24, 2018 · One of the more frequent problems with modern vehicles is a bad throttle position sensor (TPS). But aside from that it's just cold start rough idle. There are other cases of this on the net. My vibe has 48k on it and when its idling,I don't know if I would call it a rough idle or vibration. You can unplug the MAF's on these and they will start/run, Reason being I've come across some very bad MAF's brand new out the box. It could happen at any time: You are driving on the highway, moving had rough idle once warm replaced everything know to man same thing,,,,,the manual idle screw on the throttle body turn clockwise slowly mine took about 45% rough idle gone !!!!!apparently the aic may not be able to move to the correct position by opening the throttle a little the aic can re-calibrate by the computer and get the right position rough idle turbo valve spring kit & moly pushrods required . 4L engine describes a problem where a camshaft position actuator solenoid may stick, causing the Check Engine light to come on, as well as rough idle and possible stalling. Idle speeds vary from car to car, but for a passenger car, typical idle speeds are between 500 and 900 rpm. The rough idle appears when first started after an extended soak. The Dodge ram 1500 rough idle can because by a bad spark plug or spark plug wire. Usually a bad or failing idler pulley will produce a few symptoms that can notify the driver of an issue. Unfortunately, I feel like I’ve caused most of the recent issues with my car. 4 L engine timing chain noise General Discussions Car Forums Has power but it also has a rough idle. [Archive] Engines, transmissions, fuel, oil & other drivetrain issues P0171 is a very common code for any ODB2 vehicle. 5L engine and six-speed automatic transmission built before 3/5/09. 8 roller rocker aps power range 2800 to 6600 tuning & stall converter required rough idle xd turbo valve spring kit P0507 CHEVROLET Meaning The Idle Air Control (IAC) valve is a Powertrain Control Module controlled stepper motor located on the throttle body. Idle air control valve for OPEL Astra H Hatchback (A04) 2010 inexpensively available at our online store We offer a huge range of all kinds of Idle control valve Opel Astra h l48, car accessories and car spare parts Jun 23, 2006 · Oldsmobile Alero Shakes at Idle and When I Come to a Stop. In total, 4,149,000 copies of the engine Feb 25, 2017 · I recently bought a 2011 Buick Regal CXL with the 2. First of all it appears to have an oil leak. 550/. The RPMs are staying right at 700 and the car isn't over heating. Different owners seem to describe this problem using a variety of expressions. If you clean it with carby cleaner, it will return to it's proper idle setting. It gets dicier. think it was at this stage the plenum got that air diversion/deflector plate inside it to try and promote even cylinder filling and less shit/rough running/idle? revised coil pack assembly. MOST COMMON ISSUE IS THE ICM ( Ignition Control Module ) Saturn ion Check engine light and trouble code P0300 misfire. the check engine light is on and it could be a sensor im guessing, any ideas what sensor it might be? or a possible cause? Apr 26, 2009 · hey im new to this site. OK I bought a 97 Sunfire GT w/ a Autotragic. Feb 22, 2013 · Chevy Cobalt is stuck on high idle. Reader Question. Car Stall Problems of Chevrolet Equinox - part 1 for the last month and a half I have experienced rough idle on start and rough idle & stall with the car losing Basically, once the engine's warmed up, at idle it often is rough and shakes the car - feels very much like a misfire. 2003 Chevy Cavalier, 2. Ecotec Power is an enthusiast organization dedicated to the Ecotec engine, and the vehicles they power. i waited approximately 1 month and the start up idle was getting worse so i took the car to another dealer and was told it was normal for this engine to idle rough and emit black smoke on initial start and was given a bulletin that said this was a normal condition for this vehicle. 4 ecotec. 5 Answers. 4l gm BTW it is called a "coil cover" usually costs less than $30. - Fuel pressure good, clean fuel in tank, changed coil pack, plugs and boo A rough or unstable idle in your vehicle Is your idle rough? Does the RPM have a tendency of going up and down? There are several factors that may be at the heart of the problem, and generally it is not terribly expensive to solve. 550 lsa 117* 2a: single turbo / reverse street / strip perfect for 1. On the Cavs its caused Idle Control Valve gumming up with Oil and causing erratic idling and stalling. I have have been dealing with this P0171 diagnostic trouble code for many years on many different year make and model vehicles. Vacuum tested and get a rapidly fluctuating needle at idle, which smooths out at higher rpm's, so put plugs and wires on it. 2L EcoTec with 145k on it. They will not increase it. The stepper motor drives a valve pintle which protrudes into a passage that bypasses the throttle plates. ss/sk dual spring kit & pushrod set $379. the vn series 1 engine was a "ln3" gm engine the vn series 2 engines was a "l27" gm engine this has some history info, but not specifics of mechanical changes. Not extreme but its noticable. He wasn't to pleased about how I played around with the base idle screw and also told me to never touch it. So far have replaced plugs,Fuel rail flush, MAF sensor. One of the most common symptoms commonly associated with a problematic idle air control valve is irregular idle speed. got a 98 reg Corsa that's had a lot of problems with idling & cold starts, it was suggested in this group that there might be a problem with the idle My car runs great drivers great but while in Park it idles rough. Simply put, the idle air control valve for Chevy Malibu helps your engine maintain a consistent idle even when it takes on extra work, such as powering the vehicle lights or the air conditioning in your car. But here in Georgia (Near Atlanta) the temps have started to drop, and the code isn't going away. 2 ecotech rough idle - Chevrolet 2004 Cavalier question 2003 cavalier with a 2. Saturn ion , Chevy cobalt Check the cam cover's pressure regulator. Listening to the engine, it doesn't appear to sound quite right, and the exhaust makes a "putting" noise - again, sounds like a misfire. Chevrolet Cavalier Starting/Stalling Problems. with out a power source system start to fail. While throttle-body cleaning is good preventative car maintenance, it should also help engine drivability. the vehicle fell into a Rough starts/idle L61 2. The car drives fine but when your at a stop light,you can feel the whole car vibrate a little,Its not too bad,but was wondering about any ideas to cure this. Replied by wysetech on topic 2004 Cavalier Ecotec Random Misfire P0300 I'm working on an ECOTEC right now at work that had a P0300 and a rough, rolling idle. These changes forced relocation of the Mass Airflow (MAF) sensor. Rough Engine Idle: One of the most common symptoms of faulty fuel injectors is an extremely violent or rough engine idle. Astra coupe 1. This idle speed also depends on the accessories that are currently running as a car's idle control system will automatically raise the idle in order to provide power for auxiliaries such as air conditioning and power steering. Start by checking for intake leaks, intake gaskets are a common caused of multi-cylinder misfiring. A trained mechanic can reset your idle speed setting easily. Only does in while in park, if I am stopped but in drive it does not idle rough. ) idle issues go away for a while (weeks). Jan 13, 2014 · The trucks are only supposed to use two four cylinders when idling, but a software glitch is causing them to idle with most of their cylinders. With that said it can not be the problem. Jul 20, 2013 · Started up our new (to us) 04 Vibe this morning, and it idled in Park at around 2000 rpm for a good long whileperhaps 2 minutes. 2l cavalier that suddenly started surging and idling too high replaced the IAC; map, tps,air temp, oxy, and even crank sensor. The car began losing power -- wouldn't accelerate, even in low gear, going up the slightest hill. 7 r e d u c e d p o w e r 2008 i4 missfire at 1000 rpm no mil performance chip suggestions please cylinder head problems - 3. 2 ecotec engine, misses at idle and under acceleration, smooth at higher rpm, changed out ICM and wires and plugs, started suddenly. During driving everything is fine. it did not set a Lean code condition but a P0300. It might not be too late. I've cleaned the throttle body and it looks like that has helped some. Corsa - Rough idle , unstable drive. 99 . Then you experience a rough idle, bucking, poor fuel economy and a lack of power. 2L or 2. 2L Poor Idle Quality Posted to GM Driveability on 9/3/2009 4 Replies this is a 2007 hhr ecotec , problem only happens on cold start for 15 seconds , misses and seems to run rich then will clear up and run fine , happens so fast cant see anything on scanner no codes , tried cleaning injectrs and added recommended upper Feb 22, 2008 · The 2002 chevy cavalier with the Ecotec engine does not have a EGR valve. Jul 19, 2019 · You'd be surprised just how easy it is to diagnose a bad fuel injector on your 2008-2010 2. When your AC compressor kicks in or power steering is activated as you suddenly turn the steering wheel, the sudden drag o I previously owned a dodge that had a similiar engine (2. I have been told it could I have a 2007 gxp. The rough idle can also because by a bad A failing camshaft position sensor (CMP sensor) can produce a confusing range of problems, depending on the way it fails and the model of the car: An intermittent or complete CMP sensor failure while on the road could be dangerous. 2005 Cobalt 2. my 2017 5. I diagnosed it last week with a worn timing chain and the customer picked it up. I’ve already had engine work done on the car less than a year ago. This might be felt as a rough idle or hesitation upon acceleration. Please have the dealer or local repair shop scan the engine for problems and make a good repair. The GM L83 V8 engine is used in pickup trucks and SUVs. it has a rough idle and even worse when ever its in gear. $399. I bought a 2004 chevy cavalier with 85000mi. Your Chevy injector can also fail internally, so there’s a few ways your Cobalt Fuel Injector can go bad. I have a co-worker that has a GMC Terrain that had to have his timing chain replaced under warranty. Then gradually start getting The idle will start jumping between 300 and 800 RPMs. This manifested itself in a rather rough idle and poor performance. 06 Cobalt LT 2. 2litre ecotec. February 22, 2013 — 1:56pm Recently it was idling rough and I read that cleaning the throttle body might solve the problem. 0 SOHC 4 door auto 120,000 miles. Cranks but does not start. The Ecotec engine typically has problems with its timing chain, which frequently slips and wears down after long periods of use. For awhile I'd be able to avoid it coming on as long as I didn't use the remote start. I know when you come to a stop by default the trans goes into neutral to lower the idle speed to save fuel. Procedure 4 Throttle/Idle Learn Description The engine control module (ECM) learns the idle position of the throttle plate to ensure the cor- rect idle. After 13 years, the last 2. Aug 15, 2012 · When fuel pumps die, your vehicle will crank but not start, but sometimes it takes a long time for the fuel pump to die. When i accelerate, my car runs great, just idle is bad and hesitates from a stop sign. She drives great its just a rough idle. Easy to use parts catalog. 2l 103065 Miles When decelerating on the freeway to come to a virtual stop for traffic, when stopping at a stop light, when pulling out of the driveway, or at any point when the RPM's fall quickly to idle speed I have an irratic idle. A faulty oxygen sensor can disrupt any of these things and cause a rough engine idle. Sitting at idle she idles rough. The timing chain is located in the front of the motor and is attached to a set of gears and pulleys that power multiple mechanical components, including the crankshaft and camshaft. My 2007 Malibu has 49k miles with the 2. Usually if revving the engine makes the temperature fall, the issue is that there's not enough head pressure at idle. As expected, the stock settings for the MAF did not match the new configuration. Jul 12, 2010 · At an idle of about 680 RPM's, the MAF sensor outputs about 3. 2? A plugged PCV valve, orifice or hose may cause rough idle, stalling or slow idle speed, oil leaks, oil in the air cleaner or sludge in the engine. 2 Hesitation & Stumble. Engine mounts are fine I seen them do the whole check at pedders plus he took me for a drive and we checked them again then he put it on the hoist and let me go over it my self plus we had 2 other guys under it also and we checked ever nut and bolt and tried tightening all of the obvious ones but everything was fine. Jan 06, 2014 · To meet idle emissions and gas mileage, Chevy take the idle down to the bear minimum. rough idle dies sometimes. Once you get alittle build up in your Throttle body or injects you get the rough idle. 95 for guys like me to ask a single question! Under most circumstances, it will relearn after just driving the car for a while, but if your car continues to experience an abnormal idle, or you just don't want to wait for it to relearn on its own, you can try this procedure. Over time contaminants in your fuel that get past your fuel filter will clog or damage your fuel injectors. 2 and all i got so far is a fujita CAI and a single to dual split exaust. For a couple of months now my car has had a rough idle and shudders while accelerating - Vauxhall Astra J Exclusiv MK6, 4 years old 61k miles spark plugs done last year. It has been at the dealership for 5 days, and they have yet to "duplicate" the problem. 3 seems to get a slight rough idle and it drops just below 500 rpm when stopped. Got a 2. It just recently began having a rough idle and some hesitation at the beginning of an acceleration. Oh yeah I have a 2002 Pontiac Grand Am 2. 4L Ecotec equipped vehicle. I personally had an 06 HHR that started having a rough idle and eventually the check engine did illuminate. 7:1+ diff ratio. Average failure mileage is 47900 miles. Used genuine GM plugs and gapped them as recommended. Ran injector cleaner. since purchasing my vectra b 140 ecotec(x20xev)it has suffered from lumpy idle and non exsistant acceleration in 1st and 2nd, but get it in 3rd and its away with no symptoms. This morning I changed out the fuel filter, reset the pcm, and added a bottle  I've been trying to diagnose this problem for a few weeks now and I'm getting nothing. It starts off shuddering if I accelerate from too high of a gear (low RPMs) and then it progressively gets worse and happens even when in mid-high RPMs to the point where I Jul 03, 2018 · Wow. lumpy idle and acceleration 34 Answers. Rough idle issue. The 2007 Chevrolet Cobalt has 2 problems reported for shaking while at idle. The 2005 Chevrolet Cobalt has 5 problems reported for sputters at idle. 2L Who let you into the Ecotec section anyways I replaced mine after 30,000 and it got rid of the rough idle. I’ve replaced both solenoids, the cam and crank sensors, and the knock sensor. At about at 1500 RPM;s the MAF signal output is about 4. The engine has to be warm before it starts doing this. I have a 2011 Chevy Equinox that is also have the same engine problems (diesel-like start, rough idle, stalling, etc). They did a fuel system treatment and Seafoam twice to remove a bunch of carbon that had built up (I’m guessing the previous owner was a city driver and I am as well). Once you have ruled out all the basics, you can go back to what the Chevy 4. 2009 Malibu 2. Jun 13, 2012 · rough idle causes for a vt commodore 98 berlina V6 ecotec - Holden 1998 VT Commodore question 2. In fact, if you've noticed a rough idle, stumbling initial acceleration or even stalling – all when the engine is fully warmed up – a dirty throttle body could be the culprit. Would be a common thing for the coil to of been replaced by now. 2L Ecotec) · How To Test The Fuel Pump  The 2014 Chevrolet Cruze has 2 problems reported for rough idle and stalling. Chevrolet Malibu Rough Idle? RepairPal will help you figure out whether it's your Vacuum Leak, Spark Plugs, Ignition Coil, or something else. 8 - Astra Coupe 1. Nov 12, 2006 · I was wondering if anyone else has had this problem. Mine did it, you need to change the exhaust camshaft intake ( the black one that points towards the passenger seat). I've read this could be intake leak causing this. I experienced rough idle, car shutting off whenever I came to a stop, and my engine "overheating". See our lemon odds and nada odds page to see vehicles with no repairs or vehicles with more than three repairs. 2l Ecotec has developed a bit of a rough idle lately. The tensor in the engine also suffers from damage sometimes, and the cylinders may not fire as they are supposed to, resulting in decreased engine efficiency. You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. 4 ecotec non-turbo (65k miles). 4L), dont know if the ecotec uses one of these but its called a pvc valve and once it got clogged it would make the engine idle rough till it was either replaced or cleaned. C16XE was available only in Corsa GSi, model years 1993 and 1994. But im at a loss. 2 liter ecotec rests at around 950-1000 rpm. Then you should check all the vacuum hoses — a leaking hose can cause a too-lean mixture and a rough idle. Possible cylinder head or valve damage on the GM 2. 2007 Chevrolet HHR LS 2. 96 VS Ecotec Running Rough: Hey all I have a 96 VS commodore running the ecotec v6 the car has done about 140,000kms. Why do I have a Rough idle – Ford Ford has issued a service bulletin to address a rough idle problem on 2009 Ford Escape and Mercury Mariner vehicles with the 2. A simple air induction cleaning and fuel injection flush may clean the throttle body allowing proper airflow into the engine again and smoothing out your ride. Dec 30, 2008 · My car is making loud knocking noises at idle. cleaned idle air control valve. 2L Random misfire code, rough idle, won't get out of it's own way. If fuel is not properly provided to the engine cylinder, it will result in a choppy engine, when the car is in idle. A leak could cause rough idle, stalling or high idle speed. The air flow sensor doesnt affect idle on this model so rulke that out. To see how frequently GMC Terrain problems occur, check out our car reliability stats. Feb 20, 2012 · I mentioned in the last post I’d go into more details about HPTuners. I've noticed that my sonic's idle is rough when I first start it for the day. Here are some: Stalls at idle, stalls when I put the clutch in, stalls when I turn a corner, misfires, surges, no power, cuts out, no power at top revs, runs rough, etc. Mar 1, 2017 I would recommend using a portable scope to look at the secondary firing patterns which will enable you to narrow down the issue to fuel  Dec 8, 2015 Then place tri-axis Pico sensor on the inboard seat track forward-most location to record measurement of the rough idle vibration concern. Pull up to a stop light and a vibration/rough idle begins at idle rpm of  Car is all stock, nothing done to it, runs great, just has a rough idle on cold startup . Folks that tuned their trucks after warranty was out put in a little more idle RPMS. Jan 22, 2012 · 2. 2L EcoTec. Hello, fellow techs, I have this 2001 Saturn fullsize sedan with a MIL on & a misfire. I own two of them, and they both run like a clock. 2 ecotec, the problem is bad rough idle I did check fuel pressure regulator engine compression and their ok, also, I checked the spark plugs an … read more Nov 20, 2017 · Anyway of increasing the idle to slightly above the factory 500 rpm without a tuner. I've had one code thrown for a cylinder two miss-fire. It can only be felt in gear but it is rough enough to  I have a 2004 L300 with the I4 2. A lot of possible answers already, but only a few seem highly likely to me. Pre-Ecotec. off idle seems to run good - Answered by a verified GM Mechanic I know the Ecotec has never been a smooth idler but I recently replaced the spark plugs in my '02 VY 6 cylinder Commodore and since then idle has seemed to get even rougher. 8 i have come across a rough idle while in drive parked at lights or stopped in traffic it is slightly there in neutral/park if i bring the revs up to about 1000rpm it dissapears. Apr 25, 2019 · Rough Idle/low rpm “roughness” - check engine line on; History. Fuel pump replaced about 20,000 miles ago. Since coolant doesn't burn it makes your cylinder missfire until it is all ejected through the exhaust and plug dries off. most of the idle air control valves you can take apart and clean the carbon out of them as after a long period of time the pintle valve in them will carbon up and start sticking. When the computer sends more or less fuel than necessary to the combustion chamber, it can result in some confusion and misfires. 2 ecotec misfiring, random misfire, or P0300, P030X code could be. the check engine light is on and it could be a sensor im guessing, any ideas what sensor it might be? or a possible cause? Welcome to Chevy Cruze Forum : Chevrolet Cruze Forums - a website dedicated to all things Chevy Cruze. Strong mid range and top end. Sorry for lack of details. Cleaning out the carburetor to remove carbon deposits is probably a good place to start. this time i noticed my idle changed from a smooth idle to a semi-rough idle. In the meantime, it sends less than the ideal fuel pressure/volume to the fuel injectors. IAC valve issue? Compressor fan? Compressor? Or could a car in need of a simple tuneup act like this? 4 Answers. The condition of the grommets in the valve cover will also affect system and engine performance. could that be a possibility? Oct 20, 2007 · The problems you describe and what I've recently experienced with the Avensis sound much like a similar problem Vx Cav's with the Ecotec engines have. My car has been misfiring alot lately and getting a really rough idle. Kept using the code reader to diagnose it. about 5 weeks went by without the car P0300 CHEVROLET Tech Notes The P0300 code means that a cylinder(s) is misfiring or is randomly misfiring. Dec 14, 2018 · Fuel pressure at idle seems to be sitting around 43 to 45 at idle, fuel rail 420 to 455 at idle, when I rev up to 2500 to 3000 rpm the fuel rail only seems to reach a steady 8 to 900ish but if I give it one quick rev it goes up to 1700+ The main concerns are the engine noise and how rough it runs, feeling as though I am being rear-ended in traffic (when moving forward from a complete stop it lurches forward, giving the feeling of being hit), rough start up (sounds like an old car at times) and the car stutters when accelerating (almost feels like it wants to stall out). I have a 03 saturn vue 2. Best of luck with your cavalier. 10-18-2009, 10:26 AM. 2L Ecotec Specific Diagnostic: Losing power, rough idle, won't rev above 2k rpm. the idle air control valve is a valve to itself although it does attach to the throttle body and the air passages for it are made in the throttle body. 1111 is compatible with all types of injection system with or without diesel particulate filter, old and new generation. Anybody  wear out prematurely. One of the first symptoms of an issue with an idler pulley is visible wear on the pulley. g. Min comp ratio 10:1. Oil can be seen underneath and has spread like an in even puddle so it now appears on the bottom of the transmission. 2: Engine misfire with code P0300, ICM problem? A link to the whole capture from idle to 3000 RPM ignition saturn misfire ecotec Checking your vehicle's fluid levels is always a good idea to maintain the overall longevity of the engine. It doesn't always do it, but it does a lot of the time. At 10K put in some Techron brand max injector cleaner. What does this code mean anyway? The definition for this this P0171 code is Fuel Trim System Lean (Bank 1). Jul 28, 2014 · Hey Folks! Daughter’s 2002 Grand Am SE with 2. thats going to hurt something down the road. Visibly worn pulleys. 2 ecotec has po106b code. 2 2. Anytime the throttle body is cleaned or replaced, the ECM must learn the new throttle position. Oct 12, 2019 · The GM technical bulletin 11195A for the 2011 Chevrolet Equinox/GMC Terrain with a 2. RockAuto ships auto parts and body parts from over 300 manufacturers to customers' doors worldwide, all at warehouse prices. When the MIL comes on, it does not flash, it just stays on. i have just bought my first dodge neon and i have a few codes that came up. 4 liter 4-cylinder Ecotec engine rolled off the line last week at General Motors Tonawanda Engine Plant in Buffalo, New York. I have not gotten the computer scanned for codes yet. im lookin for headers, throttle body spacer,and an intake manifold. P0300 OBD code. Check your oil for presence of coolant. Dec 15, 2015 · Idle air control valves open to allow more air to "leak" into the intake, raising the engine rpms, or close when not needed. I did notice something I hadn't really paid much attention to beforehand, the car at idle is periodically making a small JET engine noise. The cam phaser was replaced along with the timing guide. After I installed it no rubbing noise but the idle is still rough and it still drinks gas like a V8. The J-Body Organization, j-body. Either unmetered air is entering the intake manifold or there is a lack of fuel pressure: Check the fuel cap for cracks and sealing and function; Lift the hood and make sure the oil filler cap is tight If a rough idle is present or one of the other symptoms, begin the process with the most likely cause first. 7l specific only tsb 07123head issue on exhaust side - still a I agree with this. GMC Terrain Engine Problems. The car has already been in the shop before for a rough idle but was repeatedly told it was "normal". I have 2003 chevy cavalier 4 door. it will rev up to about 1300 rpm then go from 1500 to 1100 and so on every half second for up to maybe 45 secondsuntil it warms up and then idles normalonly the initial idle is not steady at all. Usually a bad or failing idle control valve will produce a few symptoms that can alert the driver of a potential issue. Timing Chain Kit VCT Selenoid Actuator Gear Water Pump Fit GM Ecotec 2. It sounds like an air leak. I changed the spark plugs first thinking it was that, which it wasn't. Spark plugs create the spark that is needed for your car to burn fuel. It only misfires at an idle. Apr 10, 2013 · But after looking into this more, and more specifically the 2. it stumbles and jerks when at a steady speed. Car has a rough idle. 00 And whenever I had a quad-4 that had random missfires, 99% of the time it was the cover, inside the cover are routed electrical contacts that make contact between the boots on the spark plugs and the terminals on the coil. all that is doing is making a lope with settings in hptuners and makings to extreme so the car idles rough and to be honest thats not good. Seems to idle smoother on premium unleaded fuel but can't afford to keep using this. The ecotec is one of the most durable 4 cylinder engines that GM has put out in many years. I mean the whole car would lurch side to side like it was an old muscle car with a full cam. 050" 232*/228* lift . Dealer says nothing out of ordinary but think the idle should be increased a bit to keep it smooth. i have a 2003 saturn vue suv with a 2. 8 rough idle, video in thread - track : the engine doesnt say mk4 astra the coil pack does. Could be a problem with the impeller, a trapped air pocket (as you note, this one isn't a normal Honda issue), could be either the impeller or the pulley of the water pump slipping on the shaft too. The same for the other Ecotec diesel treatments : 1010, 1118, 1116. Points 1 and 2 above were noticed after my first intervention, and point 3 after a second intervention: Issues 1/2: Took my car to the manual car wash after a long winter. Now the idle is very rough with a pronounced 'miss' its like a cylinder just isn't firing and the car is idling around 600 rpm. When there’s an issue with your Cobalt Fuel Injector, your Chevy engine will idle rough and lose power. Not mechanically inclined but I'll try to provide as much info as possible. What do you think it is? This happens in park neutral and in gear. I've been getting a P050D Cold Start Rough Idle code on  Apr 19, 2019 When the cars idle gets rough, it hard to comprehend the related causes. Replaced cam shaft position sensors and actuators (was getting MIL CODE for the cam shaft) Light went out after changing cam sensors. This only happens when it's in drive and I come to a stop. 2 K Hertz. It's not super loud but the idle gets more rough when I hear the noise start. 2L L61 Ecotec Engine swap rough idle and stall I'm putting a L61 ecotec into a Miata and on start, the car idles very erratically before dying about 2 minutes after 2011 Chevy cruze rough idle!!! Welcome to GM Inside News Forum – General discussion forum for GM Welcome to GM Inside News Forum - a website dedicated to all things GM. Let me emphasize the words ‘outputs about’ because every vehicle will output a slightly different value depending on several conditions like: engine temperature, ambient air temperature, etc. I felt this could be a good thing to mention now that I'm noticing it. Replied by Raistian77 on topic rough idle 2. Many GM brands use this flexible powerplant, including Chevrolet, Holden, Oldsmobile, Opel, Pontiac, Saab and Saturn. I've driven it for about 5k miles and have started noticing a hesitation (misfire) at idle when the car is in drive (it would kind of rock the car). So I bought a timing set and the chain was crazy loose. If air is being sucked into the square hole at idle, you need a new cam cover and possibly a new intake manifold. Dec 16, 2009 well if the lights dim check the battery and charging system. Mar 17, 2017 · A rough idle could simply be the result of an incorrect idle speed setting. I think you have a cracked head gasket leaking coolant in one of the cylinders, hense the rough idle at startup. It still gets rough but not as bad. Might not be leaking in the oil. ecotec rough idle