Ecotec Rough Idle

























































I've also had some moments now where the car has trouble starting (cranking, but not taking off), and even stalling in front of traffic light when going back to idle. Most mechanics charge 29. This only happens when it's in drive and I come to a stop. Ignition System, Fuel System and Engine Mechanical Problems That Cause Misfires. After 13 years, the last 2. So far have replaced plugs,Fuel rail flush, MAF sensor. When the MIL comes on, it does not flash, it just stays on. What could be wrong?. (Page 1 of 2). 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+. 33 gears, hi-stall, HI-6 ignition. Excessive lifter preload will cause the motor to idle rough or have low manifold vacuum and can lead to severe engine damage. The air flow sensor doesnt affect idle on this model so rulke that out. Hold wire, squeeze or move wire at join and the engine should increase in idle then settle. Next scenario is that the car idles rough, this is when the vehicle is in a stationary position and you get a rough feeling from the engine almost as if the vehicle wants to stall out. 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. No smoke on highway (that I can see). In my case throttle body unbolted it self and i had a rough throttle which change it to engine hunting. Replied by Raistian77 on topic rough idle 2. Saturn VUE owners have reported 19 problems related to ignition module (under the electrical system category). At an idle of about 680 RPM's, the MAF sensor outputs about 3. Jun 21, 2015 · It will eventually learn it on its own, but it may take over a week of driving, during which time you will experience high and low idle speeds and possibly rough idle. You need to log the idle area under all kinds of different loads for a decent amount of time at each load adjustment. It is critical to engine efficiency and to the service life of the valve train (camshaft, lifters, pushrods, valve springs, etc) for the lifters to have. I have serviced the car recently (as always)-new plugs and leads (4000k's ago). I've had my oil changed, filters replaced & my throttle body clean what's wrong? I have used a few different fuel cleaners but not all at once I thought It was the gas so I went with a brand name company but it still jerks. Fix rough idle P0171 P0300 P1174 Engine runs rough, P0171, P0300, P1174 on Saturn Ion GM has issued a technical service bulletin (TSB) 08-06-04-001 to address engine Rough idle P0171 P0300 P1174 problems on 2006-07 Chevrolet Cobalt and HHR, 2007 Pontiac G5 and G6, and 2006-07 Saturn Ion with the 2. I know when you come to a stop by default the trans goes into neutral to lower the idle speed to save fuel. If you're using the LTFT in a cold start to tune your idle thats why you're having issues. 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. (Rough Idle): Also known as an. I pulled the plugs and found that 3 out of the 4 cylinders where flooded. This is fine, and improves. The purpose of variable valve timing is to ensure that the valves open and close at the right time to maximize engine performance and reduce fuel consumption. No code no problem. Usually a bad or failing idler pulley will produce a few symptoms that can notify the driver of an issue. 2 ecotec engine. Ignition System, Fuel System and Engine Mechanical Problems That Cause Misfires. Anything other than idle the engine is velvet smooth. Oct 17, 2016 · Chevy Cruze rough idle fix Nate Sand. You'd be surprised just how easy it is to diagnose a bad fuel injector on your 2008-2010 2. How to: Clean MAF Sensor and clear up some of that rough idle. The codes are P0101 (MAF sensor) and P0172 (system too rich). Fuel Rail pressure about 500psi at idle and 1800psi at 3500rpm. I then used CRC Mass Air Flow Sensor cleaner on the Mass Air Flow Sensor,let that dry out and then I put it back together and a half hour later started it up,it chugged for a few seconds burning out any excess cleaner and now it idles fine. 3L ecotec? Mine seems to idle right at 500rpm. 2006 Saturn Ion 2 Ecotec engine - High Idle after Throttle Body cleaning. 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. For them todo all this they wanted £500 OUCH!!. Aug 07, 2018 · Some customers may comment about a rough idle and/or vibration at idle in Drive. Cam-belt making noises when purchased so replaced at 100,000kms instead of 120,000kms. haven't had injectors cleaned. To meet idle emissions and gas mileage, Chevy take the idle down to the bear minimum. Question: Any of you with a 4cyl get a rough idle and almost stall if you repeatedly press the brake pedal???? I pumped the brakes and rough idle almost stall, clamped off the brake booster vacuum line and pumped the brakes - stable idle with no change. I have serviced the car recently (as always)-new plugs and leads (4000k's ago). Captiva - Rough idle - I have 2012 Chevy Captiva LS with Ecotec 2. Have a 2012 Chevrolet Cruze LT 1. It sounds like an air leak. Rough Idle Common Questions & Troubleshooting. I have a 2011 Chevy Equinox that is also have the same engine problems (diesel-like start, rough idle, stalling, etc). The high side fuel pressure at idle will likely be high, around 2000-2500 PSI. Aug 07, 2018 · Some customers may comment about a rough idle and/or vibration at idle in Drive. At idle your engine produces the least amount of power. Even today, the idle is rough while sitting but smooths out when A/C is. 91 gmc sonoma 4. the dealership tried to fix these problems, but the brakes still fail, and now the uses 1 quart every week. The car has already been in the shop before for a rough idle but was repeatedly told it was "normal". It will eventually learn it on its own, but it may take over a week of driving, during which time you will experience high and low idle speeds and possibly rough idle. 2 Affected Products Vehicle MAKE MODEL YEAR CHEVROLET CRUZE 2011-2012 Parts. 4 L engine timing chain noise General Discussions Car Forums Has power but it also has a rough idle. 6 ecotec , 2005 model Rough idling in the morning: 2001 OPEL Astra. 2 ECOTEC, 97K miles. GM Ecotec engine - Wikipedia. Single wire splits off to two wires. ford 351w high performance crate engines - tri star engine. I recently bought a 2011 Buick Regal CXL with the 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. 10-18-2009, 10:26 AM. The car idles very rough and the engine light is on. 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. 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+. To see how frequently Chevrolet Malibu problems occur, check out our car reliability stats. Have a 2012 Chevrolet Cruze LT 1. If the noise goes away, try adding coolant while thoroughly bleeding the air out of the cooling system. From what I can tell, the shift is a result of an engine problem. Holden V6 Ecotec VS - VU 1993-2004. Re: Rough Idle, Stabilitrak, Check Engine light I had P0302 ("cylinder 2 misfire detected") and P0352 ("ignition coil 2 control circuit"). 2 Ecotec, auto trans. ) the valve should move slightly. If you experience hard starts especially restarting a short period after shutting off the engine, then one possibility is a leaking fuel system. Oct 08, 2008 · Posted to GM Driveability on 9/30/2008 13 Replies. So, I would not let it idle, I just put the vehicle in neutral at a stopping point to keep it from c. Question: Any of you with a 4cyl get a rough idle and almost stall if you repeatedly press the brake pedal???? I pumped the brakes and rough idle almost stall, clamped off the brake booster vacuum line and pumped the brakes - stable idle with no change. 2200 + stall converter. 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. The engine will shudder when I give it gas from a low rpm before picking up, it runs noticeably noisier, shudders when engine braking, and poor mileage + power. I've only owned 1 4 cylinder engine previously, but I've worked on a couple of friends/family. but sometimes it takes entirely too long and too much gas to get it to move faster. - Fuel pressure good, clean fuel in tank, changed coil pack, plugs and boo. it drives perfectly fine , even in park the engine runs fine, but once you shift it into drive it starts to idle rough. 2017 chevy malibu water noise. I am not having any problems it just seems low. 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. It's the circular bit under the "ecotec" cover. to see how frequently 2010. She has been driving this car for 4 years and it has been a decent car. CarComplaints. In my case throttle body unbolted it self and i had a rough throttle which change it to engine hunting. 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. I've also had some moments now where the car has trouble starting (cranking, but not taking off), and even stalling in front of traffic light when going back to idle. May 31, 2012 · 05 cobalt ls 2. wafrederick. Seems to idle smoother on premium unleaded fuel but can't afford to keep using this. They will not increase it. 2012 · Drove a Saturn Vue Hybrid before we purchased a Vibe. what i thought was my map sensor that i relocated to the intake pipe was actually the IAT sensor. chevrolet cruze recall my 2012 chevrolet cruze was recalled twice, once of overheating while driving, and once for brake failure when crawling, such a parking. I was stopped at a red light, my vehicle was idling slightly rough, not too bad, I didn't think, then it cut off. GM suggests. Jan 24, 2019 · Yes. 2 Hesitation & Stumble. My daughters car had a rough idle and a P0300 code. Insuficient lifter pre-load will cause excessive valve train noise. What could be wrong?. The air flow sensor doesnt affect idle on this model so rulke that out. This is a discussion on 2011 equinox stalling issues? within the 2010+ Equinox General Forum forums, part of the Chevy Equinox General Discussion category! I am glad this info is available for those who are having these issues on CEF. Hi I have a 2004 vy spac ecotec 3. about 5 weeks went by without the car. I have 2006 astra 1. 0 CDTI (165 Hp) Ecotec Autocatalog News Blog Login Registration Add data for a new car API English. p0300 code is a random misfire code but it doesn't tell you. and clears the p0507 code. That make sense???. Pistons for the oil. I used fuel injector cleaner. Listening to the engine, it doesn't appear to sound quite right, and the exhaust makes a "putting" noise - again, sounds like a misfire. Needs 11:1 comp. Vacuum tested and get a rapidly fluctuating needle at idle, which smooths out at higher rpm's, so put plugs and wires on it. About a week later -- I start to notice slower acceleration. 05 cobalt ls 2. Seems to idle smoother on premium unleaded fuel but can't afford to keep using this. Hi, I've been searching and reading for a while now and still without a solution looking for help from this forum now. 1111 is compatible with all types of injection system with or without diesel particulate filter, old and new generation. The LU3 also received a quiet cam to help reduce vibration at both idle and high engine speeds. While these engines were based on the GM Family II engine, the architecture was substantially re-engineered for the new Ecotec application produced since 2000. Then gradually start getting. If air is being sucked into the square hole at idle, you need a new cam cover and possibly a new intake manifold. 2 Affected Products Vehicle MAKE MODEL YEAR CHEVROLET CRUZE 2011-2012 Parts. 98 civic ended u with a small break in the intake manifold gasket that was leaking coolant into the intake. We offer a wide inventory of new Buick and GMC models in the Newark, DE region. Getting the idle right on the LNF can be frustrating and certainly time consuming the first time. It is part of GM’s Gen V Small Block engine design that’s known in trucks as EcoTec3, replacing the. It idles rough and surges, its a 6 cylinder auto. How do you know if a throttle position sensor (TPS) is bad? Of course, some symptoms can tell you when a TPS may be bad. Ecotec Power is an enthusiast organization dedicated to the Ecotec engine, and the vehicles they power. It always smooth's out within about 5 minutes. Also the idle air control seems to be stuck at 34 steps. I was wondering if anyone else has had this problem. - Chevrolet 2004 Cavalier question. Jun 23, 2006 · Oldsmobile Alero Shakes at Idle and When I Come to a Stop. The best way to sidestep the Chevy Cruze ignition coil problem is to not touch it. So I change the plugs and it go's away, and comes back. The 2002 chevy cavalier with the Ecotec engine does not have a EGR valve. The other day i had to stop half way from work and call RAC as I got scared is something more serious but i was told engine hunting which mean that rouge air enter the engine somewhere. Hey, now! I didn't replace my engine because of a "rough idle" I replaced it because of a timing chain problem! That, along with knowing the third water pump was coming up on 50k miles, the fact that I KNOW I ran the car for the better part of two weeks with practically no oil (dealership changed oil as part of another repair, installed wrong oil filter and HAMMERED it to make it "fit. 8 rough idle, video in thread - track : the engine doesnt say mk4 astra the coil pack does. Jan 25, 2019 · Boosting Chevy Silverado Truck Gas Mileage. I was stopped at a red light, my vehicle was idling slightly rough, not too bad, I didn't think, then it cut off. if they've never been replaced guaranteed the engine will be sitting lower. Someone suggesting a rocker arm. Loading Unsubscribe from Nate Sand? Easy Way to Check an Idle Air Control Valve - Duration: 4:38. Apr 04, 2015 · Yeah, I was just wondering what normal was for the new Ecotec. Very strong mid range, torque and throttle response RPM RANGE 2500-6200+ Must Use DRIVEN Break-In Oil. the engine codes show to lean bank 1 & 2. 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. This is more common on the earlier 2002-2003 models I believe. If there are no intake leaks, the next step is to replace the air filter and clean the air flow meter. Vehicle recall news and information. Low pricing and fast free shipping on orders over $100. The theory that seems to be the most accepted but never officially is the the valves in some (not sure of the percentage) later model 2007+ 9-3's (maybe 2006) with the 2. Vauxhall Zafira Owners Club Forum's > General Message Area > Newbies > Rough idle on Z16XE 2003 1. To see how frequently GMC Terrain problems occur, check out our car reliability stats. Replied by Raistian77 on topic rough idle 2. - Fuel pressure good, clean fuel in tank, changed coil pack, plugs and boo. Chevy Cobalt is stuck on high idle. I'm trying to find out if A) I can simply grab one out of a Pontiac or Saturn and drop it in my Chevy, and B) if I need an '05 or could I pull one out of a newer model. What you've just mentioned jives with what Aaron sent me from Hahn. Hopefully this takes care of the erratic idle. Diagnosing P0301, P0302, P0303, P0304. what i thought was my map sensor that i relocated to the intake pipe was actually the IAT sensor. 0 CDTI (165 Hp) Ecotec Autocatalog News Blog Login Registration Add data for a new car API English. Exhaust didn't seem to be an issue because high rpm power and performance was excellent. I used fuel injector cleaner. Engine Hesitation Rough Idle - You're seeking articles on our blog within the headline Engine Hesitation Rough Idle of choices of articles that we got. You'd be surprised just how easy it is to diagnose a bad fuel injector on your 2008-2010 2. 2 2009 Malibu 2. May 14, 2019 - Norman, OK - Engine VEHICLE SHAKES WHEN DRIVING, ESPECIALLY ON HIGHWAY, SLUGGISH TO ACCELERATE, MAKING HIGHWAY DRIVING FEARFUL. 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. i am going to try and relocate it to the intake pipe and see how. powerscrub 60 idle side stub shaft,powerscrub 60 idle side stub shaft Skip to main content Product details page for POWERSCRUB 60 IDLE SIDE STUB SHAFT is loaded. The exhaust smells rich because even a lean mixture, if it doesn't light off, if full of unburned fuel. The car never stalls, this problem is not normal. It gets dicier. Nov 27, 2017 · If you're experiencing a rough idle in an older vehicle with a carbureted engine, the process is a little different. 2006 Saturn Ion 2 Ecotec engine - High Idle after Throttle Body cleaning. No change still having idle problems. Whats up people! This video is a How to possibly fix your rough idle problems,. My vibe has 48k on it and when its idling,I don't know if I would call it a rough idle or vibration. I have a co-worker that has a GMC Terrain that had to have his timing chain replaced under warranty. The air flow sensor doesnt affect idle on this model so rulke that out. Hello, fellow techs, I have this 2001 Saturn fullsize sedan with a MIL on & a misfire. 2006 Chevy HHR stalls at idle. No smoke on highway (that I can see). 18014 P1606 Rough Road Spec. view details; jan 01, 2014 - burnsville, mn - engine noticed our 2008 saab 9-3 2. To view links or images in signatures your post count must be 10 or greater. 2005 Cobalt 2. The old engine 5. May 31, 2012 · 05 cobalt ls 2. Engine Hesitation Rough Idle - You're seeking articles on our blog within the headline Engine Hesitation Rough Idle of choices of articles that we got. It can advance valve timing for a smooth idle and low-end torque. 2: Engine misfire with code P0300, ICM problem? A link to the whole capture from idle to 3000 RPM ignition saturn misfire ecotec. Feb 22, 2008 · The 2002 chevy cavalier with the Ecotec engine does not have a EGR valve. vehicle has a very rough idle (misfiring). Anytime the throttle body is cleaned or replaced, the ECM must learn the new throttle position. If your vehicle is backfiring, this can indicate early symptoms of an ignition coil failure. Question: Any of you with a 4cyl get a rough idle and almost stall if you repeatedly press the brake pedal???? I pumped the brakes and rough idle almost stall, clamped off the brake booster vacuum line and pumped the brakes - stable idle with no change. control motor. 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). Also, they must be willing to tolerate the down side of these type street engines. I found it on EBAY for 23 bucks. It has the 2. Most mechanics charge 29. This camshaft used the same lift and duration as the older design, but the cam was reprofiled to keep the valve lifters in full contact with the cam lobes as the cam ramps down. 2 ecotec misfiring, random misfire, or P0300, P030X code could be. Insuficient lifter pre-load will cause excessive valve train noise. Characteristics. Oxidation of these components can also cause a rough idle. Once it lowers down within 20 - 40 seconds it idles great. If there's a misfire, or just rough idle, you might replace them next time you replace your spark plugs. ill step on the gas but it wont accelerate as fast as it should be. We're that close to ordering an Ecosport Titanium with the 125bhp petrol engine. Hey, now! I didn't replace my engine because of a "rough idle" I replaced it because of a timing chain problem! That, along with knowing the third water pump was coming up on 50k miles, the fact that I KNOW I ran the car for the better part of two weeks with practically no oil (dealership changed oil as part of another repair, installed wrong oil filter and HAMMERED it to make it "fit. EGR valve causing rough running, similar to misfire - this is a common problem apparently. Ofter I place in Nuetral at the lights and this helps. My next bet is to purchase the IACV. I previously owned a dodge that had a similiar engine (2. Does the 2007 Saturn ion have a Toyota engine? No. 7 16v ei experience have any diagnostic suggestions for the usual causes for rough idle on late 33's? I replaced the O2 sensor recently thinking this might be the cause and while the engine did seem to run better, albeit very briefly, it soon fouled up and returned to the bad idle. The most recently reported issues are listed below. Question: Any of you with a 4cyl get a rough idle and almost stall if you repeatedly press the brake pedal???? I pumped the brakes and rough idle almost stall, clamped off the brake booster vacuum line and pumped the brakes - stable idle with no change. 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. 4L Ecotec equipped vehicle. Usually if revving the engine makes the temperature fall, the issue is that there's not enough head pressure at idle. 2: Engine misfire with code P0300, ICM problem? A link to the whole capture from idle to 3000 RPM ignition saturn misfire ecotec. It has 98,000km and seemed to be in great shape until the other day it started making a small tick noise almost like hedge trimmers under my hood. One day it started stalling everytime you stopped. 0-liter four-cylinder engine produced by General Motors for use in a broad range of vehicles. Apr 29, 2015 · GM Authority is looking for professional automotive journalists with at least three years of experience to join our rapidly-growing team. Other conditions may not produce a warning light, such as ethanol and poor performance conditions related to fuel mixtures that may warrant a reset. 4l engine is burning oil. Saturn throttle body relearn procedure How to perform a throttle body relearn procedure on Saturn. 0L engine in the 2003+ 9-3 is a GM Ecotec engine with no commonality in parts to any previous Saab engines. The caused the low and very rough idle that was driving me crazy. My car does it at stop lights, but never at idle in park for some reason. Changed the plugs oil and filter and did a transmission flush. All of a sudden it seems to load up on fuel rough idle, have put new fuel pump in and didn’t help. 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. Best of luck with your cavalier. We have over lots of customer reviews on Saturn Idle Control Valve to help you find exactly what you need. Call 860-489-0471 for more information. If the battery was dead or removed for any length of time during the replacement, the engine computer will have reset itself and is in adjusting/learning process it goes through after a “reboot. You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. During that period the idle may be higher idle than normal. Timing Chain Kit Cover Gasket Fit 00-11 GM 2. Also I believe the camshaft used in my engine was a roller. Apr 29, 2015 · GM Authority is looking for professional automotive journalists with at least three years of experience to join our rapidly-growing team. Some technicians may comment of a service engine soon light on, low engine power or rough idle after engine, intake camshaft or intake camshaft actuator replacement. The ecotec is one of the most durable 4 cylinder engines that GM has put out in many years. Though this can happen to any car, many GM owners have reported such a failure. It is part of the large-displacement four-cylinder Ecotec engine family. It can advance valve timing for a smooth idle and low-end torque. 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. if they've never been replaced guaranteed the engine will be sitting lower. 06 Cobalt Rough Idle/Stall when stopping or quick deceleration 61 Answers. I experienced rough idle, car shutting off whenever I came to a stop, and my engine "overheating". 2007 Chevy cobalt ss runs and drives good has no issues no leaks has 4cyl 2. 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+. Loading Unsubscribe from Nate Sand? Easy Way to Check an Idle Air Control Valve - Duration: 4:38. my other daughter has the ecotec. Your choices for valve lift and duration are limited. Rough Idle Common Questions & Troubleshooting. Getting rid of the throttle allows the engine to breathe freely at idle like a diesel with minimal pumping losses. No stalling, codes, or lights. Here the owners of these brands can come together on a common ground. Have checked fuel pressure and volume and is within specification. Some older cars use a carburetor to process fuel, rather than a fuel injection system. 610 MECHANICAL - Rough idle, higher torque peak than CC300A gives excell. No matter what kind of vehicle you're looking for, you will surely find something at Union Park Buick GMC in Wilmington. MattsMotorz 1,537,474 views. 0 has been starting and idling rough in could weather. Aug 09, 2015 · 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). Also please check out the statistics and reliability analysis of Saturn VUE based on all problems reported for the VUE. Average failure mileage is 73,600 miles. 2 It idles very rough when I stop at a stop light. When i accelerate, my car runs great, just idle is bad and hesitates from a stop sign. it continued to do this for about 10 mins of trying to start the engine. As for the idle issue my car does the same thing. It's not super loud but the idle gets more rough when I hear the noise start. Every Crane camshaft is made from induction hardened alloy steel using the industry's most accurate manufacturing processes to ensure unbeatable. Chevy Cobalt. I then used CRC Mass Air Flow Sensor cleaner on the Mass Air Flow Sensor,let that dry out and then I put it back together and a half hour later started it up,it chugged for a few seconds burning out any excess cleaner and now it idles fine. 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. They idle rough by nature. and my new 16 feels like it should. 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 car never stalls, this problem is not normal. The LU3 also received a quiet cam to help reduce vibration at both idle and high engine speeds. 6 DI in the Cadillac ATS sounds similar as well. It can advance valve timing for a smooth idle and low-end torque. 4 liter four-cylinder entered production in December 1994 for minivans and cloud cars, essentially a long-stroke 2. During that period the idle may be higher idle than normal. Blue smoke starts after 5 minutes of driving 15-25mph. control motor. Yes, that is one of the symptoms. I changed the spark plugs first thinking it was that, which it wasn't. Opinions Needed On 2. World’s top manufacturer of performance camshafts, lifters, valve springs, rocker arms and related valve train parts for all race and street performance engines. Once you have ruled out all the basics, you can go back to what the Chevy 4. I was stopped at a red light, my vehicle was idling slightly rough, not too bad, I didn't think, then it cut off. This was also accompanied by the Malfunction Indicator Lamp (MIL) or Check Engine light code of 43. MECHANICAL - Rough idle, good mid-range and strong top end performance. To meet idle emissions and gas mileage, Chevy take the idle down to the bear minimum. Try cleaning the throttle body. A guide for consumers having problems with their GM intake manifold gaskets or coolant leaks in 3. My question is Are there a difference in the 2. It's only while idling it will have issues. Seems to idle smoother on premium unleaded fuel but can't afford to keep using this. Ignition System, Fuel System and Engine Mechanical Problems That Cause Misfires. It has intermittent rough idle, missing at highway speed. Takata recall the pcv valve is built into the valve cover, there is a spring in the pcv valve that fails causing the emissions computer to not work correctly. the car wants to idle bad just wondering if you have found the. Exhaust didn't seem to be an issue because high rpm power and performance was excellent. The GM technical bulletin 11195A for the 2011 Chevrolet Equinox/GMC Terrain with a 2. Engine Hesitation Rough Idle - You're seeking articles on our blog within the headline Engine Hesitation Rough Idle of choices of articles that we got. Any of my search term words; All of my search term words; Find results in Content titles and body; Content titles only. Then it corrects itself and idles fine for a while. Finally you may find that the vehicle hesitates on acceleration. and then the jerking happens at low rpms at all speeds but only after warmed up. Rough idle issue. 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). During that period the idle may be higher idle than normal. I have a co-worker that has a GMC Terrain that had to have his timing chain replaced under warranty. It's not super loud but the idle gets more rough when I hear the noise start. I got it running after a lot of cranking, it ran fine except when stopped at a stop sign then it idled extremely rough.