The car has 127k on it now. A timing belt (or other serpentine belt) which is stretched, cracked, or partially torn can also cause your car to shake when idling. Rough Idle after Engine Degrease (Low-Pressure Wash) Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine. The idle is awful and the car sounds like a diesel tank. Since then the car has had a rough idle. My car 2005 v6. Stumbling and rough idle after timing belt change So, I just finished my first BRM timing belt job. Hi I posted this on clublexus too, but trying to get some more opinions. It results in car shakes when idle. My 2001 Dodge Neon idles rough in drive and reverse but idles fine in park and neutral. Over the last 6k, it's gotten bad, really bad. I confirmed TDC before and after belt installation. I have 2002 dodge stratus, replaced timing belt-water pump-coil pack-camshaft sensor-spark plugs-idle air control valve. Something is definitely not right. It is important to take a car to a certified mechanic soon after it begins idling roughly in order to prevent more expensive damage. ive change the IACV and a new MAP sensor and i also cleaned the FITV new plugs, wires, and even a new dizzy and the problem still. I'm still using the factory set (I will be replacing them soon), but I don't think that is the issue because the rough idle and codes began after I changed the timing belt. Take it back to the mechanic and tell him that it isn't right. #1 - Rough Idling of the Engine. Didnt need timing belt etc changed as was only 2 month old. All timing belts should have the correct tension to ensure rotations inside the engine match the revs the car make. Consequently, Rough engine idle is not a normal operating condition. Hi All, For a while now, I have experienced a metallic banging sound coming from low on/in/very-near the engine during a rough idle. intervals while the later model Quests and Villagers are specified to have the timing belt changed at 105,000mi. When holding the Accelerator to 2,000 RPMs for a little while and then releasing the car idles randomly. What causes a rough idle and engine light after timing belt and water pump change? My car is a 1997 Toyota Avalon that was recently tuned up. Re: Rough idle after timing belt replacement There is pretty much no way to compare the two the PT is a pain no room at all and to get it in time if you have not worked on them much is never easy and even the guys who have worked on them get them wrong its just a pain. Suddenly, the engine’s RPM will be more difficult to manage. Anyway, a slight turn of events. My 2001 Dodge Neon idles rough in drive and reverse but idles fine in park and neutral. The 2 on the outside, and the 2 on the inside. The idle is rough and manifold vacuum is only 14" hg. Just a rough idle. This throws off cam timing, setting in motion a series of events that prevent your engine from achieving proper timing. No misfire codes at this point. There is no check engine light, but it will idle VERY rough for 2-3 mins if it has sat more than a couple hours. Car surges,idle goes very low and almost stalls when coming to a stop. I have been trying to work out a few problems. A serpentine belt is the most common belt in today’s cars—it controls the functionality of most every system for your car. I had the timing belt/water pump changed on my beloved 2003 Jetta TDI this past Friday (191000km). Timing belt out 1 tooth or crank sensor oil soaked. Especially since it involves all the cylinders on the same side of the. Take it back to the mechanic and tell him that it isn't right. My car 2005 v6. Install the cam sprocket holder to hold the cam sprockets in alignment during timing belt installation. What could this be?. This morning I start up and halfway through a 5mi drive my rpms are super high. To see how frequently 2011 Buick Regal problems occur, check out our car reliability stats. The car has 79,000 miles and has had the High pressure NG filter changed in the last 2500 miles and the timing belt and water pump changed in the last 5000 miles. Hyunda Lantra 1. If you have a bad or worn out timing belt, the following are symptoms that may occur. It actually did stall a couple times in the first week after coming home from the mechanic but not since then. Last night, after a 4 mile driving cycle I return home and when returning to idle in my drive way the car was idling very rough. Over the weekend the car idled rough and the engine light started to flicker so the car was towed back to the dealer Monday morning. One of the most common problems is likely a rough running or poorly idling engine. How to Tell if a Timing Belt Tensioner Is Bad. Over the weekend the car idled rough and the engine light started to flicker so the car was towed back to the dealer Monday morning. Verified all timing marks are correctly aligned, replaced mass air flow sensor, cleaned EGR, tested compression and fuel pressure. A timing belt jumping a tooth is also a cause of rough idling. I had my timing belt changed at 90k miles. Strong vibrations when idling even after replacing engine mounts (automatic transmission) to 2k rpm --- car idles close to 1k rpm. You may also hear squealing when the timing belt is worn or malfunctioning. I replaced the timing belts and crankshaft position sensor after the belts broke. Cars idling rough at stops can have many causes, including damaged sparkplugs, improperly installed sparkplugs or damage to the car's fuel injector, carburetor, vacuum hoses or ignition wires. This throws off cam timing, setting in motion a series of events that prevent your engine from achieving proper timing. This guide suggests how to change the timing belt which has neither come off nor skipped badly. How to replace a serpentine belt in your car, DIY with Scotty Kilmer. Only ran the car for a minute or 2 because I am waiting for a coolant tube for under the oil pan. No more suffering with a misfire and no more stress about what is wrong and how you're going to have it fixed. Well 3hrs later, after swapping the iac and a number of other things, I disconnected the cruise control cable from the TB and it was fixed. After replaceing belt and fixing leak the car idles rough and rpm's drops low and stalls within 5 seconds of starting unless I give it a little gas. Airflow meter faulty, disconnect to verify. Complaint #4 – MY CAR IDLES ROUGH Rough idle is most commonly caused by a tune-up problem or vacuum leak due to deteriorated vacuum lines. Since the timing chain controls when the intake and exhaust valves open in relation to the pistons, a worn chain can cause the valves to be out of time, opening and closing slightly early or late. I installed a billet timing tensioner and new timing belt tonight. An EGR valve that fails to close at idle is another common cause of stalling. When the engine idles, there will usually be a misfire that you can feel just from holding onto the steering wheel. after timing belt change. The intermittent stalling and rough idle happens on hot days (90 Degrees +) when the van has already been running and it sits for a period of time between 10 minutes and an hour. 8 Gas engine refuses to idle below 1500rpm. No misfire codes at this point. Remember that the similar symptoms could also be the result of a cracked or worn fuel pump. Two days ago (Saturday) I changed my timing belt with the help of a friend. Hi, replaced the timing belt on the car listed above, and the car now stalls on idle and chokes off when hitting accelerator. As your car rolls along, the engine takes in a mix of air and fuel that allows it to keep moving. It has 167,500 miles on it. Problem could be CAS disc plate loose behind crank timing belt pulley. Now that the car runs and drives daily fairly well and I'm hunting down the bugs one by one, I'd like to revisit this idle issue again. What causes a rough idle and engine light after timing belt and water pump change? My car is a 1997 Toyota Avalon that was recently tuned up. low/rough idle only when warm I have a 99 frontier with 265,000 mi. The odd thing is that the idle is dead smooth (way smoother than before the belt change), but after the weird stalling it was a bit rough, kind of like what the car was before the belt change (bits of vibration). Idling is rough. The cam timing being off a tooth or two could also cause a problem like this without leading to cylinder head valve damage. 031 And after the whole process everything is perfect, except my engine runs rough/shakey ( shakes a bit more than usually that i can notice it at idle from the driver seat ). I have been trying to work out a few problems. Hi, replaced the timing belt on the car listed above, and the car now stalls on idle and chokes off when hitting accelerator. Ok yesterday i had my timing and serpentine belt replaced. I'm sure the A/C system was discharged and recharged during this repair. Re: Rough idle after timing belt replacement There is pretty much no way to compare the two the PT is a pain no room at all and to get it in time if you have not worked on them much is never easy and even the guys who have worked on them get them wrong its just a pain. After about 10s the car ticks over perfect and it runs perfect. Nothing was changed other than this timing stuff. When you start the truck up it will idle really rough and almost die but it won't. Is this a common problem in older engines and what might be causing the problem? I have a 15gpm hydraulic pump attached on a clutch pump, but the over revving is a fairly recent problem. I have had my Regal since October of 2010. Will contact dealer tomorrow but am curious if they could have flubbed up the timing when replacing the belt? Not happy as the car ran like a watch before the work was done. We have tried a different AFM and coilpack and still the same and even on a computer but nothing. Once the plate is off you will see a white plastic thing, screw that all the way in. Rough idle and lots of vibration after a timing belt change. I have a 2000 Accord with a 2. The check engine light stays on and my RPM and mileage doesn't work. Can anyone help me and let me know whats going on with. The car has 127k on it now. Immediately following the new belt installation, and for the next 1000 miles now, I have a rough idle at 550RPM and very noticeable engine vibration when cruising or accelerating around 1500RPMs. Also I read on a Big Dog bike forum about lots of belt breakage on the X-Wedge motors and it appears that in '10 or '11 S&S& made a change in their timing belts. If you have a bad or worn out timing belt, the following are symptoms that may occur. When the engine idles, there will usually be a misfire that you can feel just from holding onto the steering wheel. At highway speeds, the car vibrates horribly. A rough idle may be caused by many different things such as low fuel pressure, low voltage to the fuel injectors, dirty fuel injectors, a vacuum leak, a faulty Oxygen sensor or a dirty or failing idle air control valve. Average repair cost is $560 at 131,450 miles. on it , and just had the timing belt and tensioner relplaced (Not smart to wait, I know, but does make you wonder how long they will last). Hi I have just had a new timing belt fitted to my 2000 Astra Coupe, the care was running perfectly before i had it done. But this morning when i started up the car, my Service Engine Soon light came on. How much is it to change the motor mount? Easy job for a weekend mechanic or no?I have a rough idle! Help!?It could be the idle speed too low it should be at 900 or choke is sticking the motor mounts are esey too do and is the check engine light still on go buy the reader at local auto store 20 bucks take care of that problemI have a rough idle!. After much soul searching and not a little deliberation on the familial. I'm still using the factory set (I will be replacing them soon), but I don't think that is the issue because the rough idle and codes began after I changed the timing belt. The wires are all connected correctly and the plugs are in tight, with the proper gap. I switched out the sensor that was reading as bad but that helped none. I replaced the timing belts and crankshaft position sensor after the belts broke. Rough idle after timing belt replacement - I changed my timing belt and when I started it it sounds really rough and wants to die. Your engine's timing belt is the most important maintenance item in your car. Cranked car. Airflow meter fault. take a paper and hold the edge to the cam gear marks and see if all 4 marks line up. Now the car runs as shown in the video. Re: Rough idle after timing belt replacement There is pretty much no way to compare the two the PT is a pain no room at all and to get it in time if you have not worked on them much is never easy and even the guys who have worked on them get them wrong its just a pain. So I've gotten a front o2 code (p0130), which I've replaced now twice with Subaru sensors. Basically giving it a tune-up along with the timing belt. Try to ignore the valve noise. 5L engine - a few weeks ago. Installation was no problem, but after firing it up the first time, I experience a very rough idle and misfire that becomes a flashing CEL if I increase RPMS. Can anyone help me and let me know whats going on with. I'm currently in the middle of flushing the radiator with some prestone radiator flush and distilled water and the car seems to be idling a little rough. They said, we are already replacing the timing belt, that they say was damage due to the coolant leaking on it, we don't want to pay for the pulley. We have tried a different AFM and coilpack and still the same and even on a computer but nothing. They call me back up and say the car is ready - great, so I pick it up and it runs rough as hell. With that said, your expertise would be sincerely appreciated as I attempt a timing belt change for my 2007 S40 T5 AWD. At cold idle, the notch on the crank pulley lines up with the 10 degree mark on the "No. This is the 2nd engine for this car. The timing belt that was on there wasn't changed for over 100K miles but luckily, it didn't snap. They promised to get it done in two days. Car manuals recommend a timing belt replacement at regular intervals of time (normally every 4 years) or when a car completes at least 60,000 miles (whichever is earlier). Over the weekend the car idled rough and the engine light started to flicker so the car was towed back to the dealer Monday morning. Timing belt destroyed pistons, rods and cylinders. Ran real rough. It seemed fine when I picked it up but as soon as I stepped on it to get up to highway speed I noticed that it doesn't have as much 'zip' as it used to. If the car starts when cold but, idles rough or does not want to stay running, this can indicate a problem with the engine. This will cause your overall driving experience to feel rough and you'll likely be bouncing a little bit in your seat from it. Ya I was thinking about that but idle air control valve would cause a constant problem after warm up not reset after restart that almost sounds like TPS is out of adjustment or timing but the trans syliniod is a more common problem especially when a recent trans service as been done idiot mechanics normally crack them on the pan. He did notice rough idle. I just recently had my transmission serviced (flushed and refilled), my throttle body cleaned, my oil changed, my fuel filter and pump replaced, PCV valve replaced, and my fuel. An ECT sensor code may also be stored. it seems overly rough. I have a 2000 Accord with a 2. Can anyone help me and let me know whats going on with. Serpentine Belt Tool: 2. I firmly suggest. It ran great and smooth. A rough idle may be caused by many different things such as low fuel pressure, low voltage to the fuel injectors, dirty fuel injectors, a vacuum leak, a faulty Oxygen sensor or a dirty or failing idle air control valve. Found out today that they tried to replace the belt tension pulley, but the company that covers the extended warranty, that I purchased when I bought the car, did not want to pay for that. It is intended to help you map out a troubleshooting plan. But after a little while the idle starts surging. This is a sign that you need to replace the timing belt. I have 2002 dodge stratus, replaced timing belt-water pump-coil pack-camshaft sensor-spark plugs-idle air control valve. My husband thinks that one of the valves is sticking. The rough idle is only after warm-up, higher revs at cold start are not rough. If you get an idle issue after say you replace the timing belt and water pump first check for air in the cooling system, if you don't find any check the mechanical timing. I have 2002 dodge stratus, replaced timing belt-water pump-coil pack-camshaft sensor-spark plugs-idle air control valve. Rough Idle. Car would be fine when cold or fully warm, but if I stopped at traffic lights while the car was about half warm the white smoke would bellow out the back along with a lumpy idle. I decided to give mine a tune-up and after cleaning it, my car actually had some issues with keeping a stable idle. after replacing the Timing Belt the car started with no problems and run smooth, that's when I notice the Timing Belt on the right camshaft was not all way inn and the rear camshaft lip facing the back instead of front. 4 if you put the belt on with the. Engine rough idle problems arise because car engines are demanding. It turned out to be the throttle sensor connector, managed to remove some almost chrome flake looking stuff off the make connectors! Tightened it all back up, and threw it on. There's only 1 variable in this equation, the timing belt. 8t 200 Audi TT. I bought all the proper tools including a genuine Ross-Tech VCDS cable. BUT: have found out this part does not exist for my car. when my car has warmed up i get a vibration in the whole car and u can feel it in your ears like when u crack a window open a little at high speeds. Can bad timing cause your car to idle rough and vibrate badly while in gear? If the timing is off a lot it can make your engine misfire and may not fire on every cylinder on every rotation. When the engine idles, there will usually be a misfire that you can feel just from holding onto the steering wheel. Now when we start it, the engine idles rough for a few seconds, then revs cleanly to about 2000 RPM, then returns to crappy idle and/or dies. -After completing a timing belt change on 09 EXL the motor has a misfire and runs horribly at idle. the fact it started immediatly after the TB change tells me that is where the probelm is. Can you diagnose the deep clunking noise. After start RPM is low 700-800 when it is colder starting the engine can also become more difficult and idle is very-very rough - after a minute or so the engine runs smoothly with no problem. I am noticing engine shake at the time of engine start and stop (Switch off). Engine won't idle. It also has a VERY slow acceleration and then it will just jump and go. I bought it with a blown turbo and replaced that along with the timing belt and still had a rough idle. Thanks for the reply. Run the fuel tank down to almost empty. Ok yesterday i had my timing and serpentine belt replaced. It does not matter whether is cold or warm start. -Is this a vacuum leak I may have created when working the timing belt install? Would a vacuum leak cause THAT bad of an idle? I've heard rough, but this is REALLY bad. com : Car complaints, car problems and defect information. Toyota and Lexus rough idle after battery replacement A common concern DIY Toyota and Lexus owners call CARspec for is a rough idle, starting and dying, or a hard start just after replacing or disconnecting the 12 volt starting battery. I now get a bad engine vibration at idle and when backing up and pulling forward. 3L 4 cylinder and manual transmission. This will cause your overall driving experience to feel rough and you’ll likely be bouncing a little bit in your seat from it. car running funny after cambelt change, my diesel engine idle and shut off after i change timing belt, changed my timing belt on z18xe engine now its running lumpy, why would you get a rough idle after a cambelt change, car sounds bad when idle after cambelt change, vauxhall z18xe incorrect valve timing, z18xe noise after timing belt,. After doing the timing the car idles badly after accelerating. 3L 4 cylinder and manual transmission. When I talked to the guy that sold me the car I asked if he had the timing belt changed and he said no but it had to have been changed once before. After about 10s the car ticks over perfect and it runs perfect. My car had had a timing belt fitted under warranty when I bought it and they hadn't set it properly so it wobbled at idle when warm. Now that the car runs and drives daily fairly well and I'm hunting down the bugs one by one, I'd like to revisit this idle issue again. check the timing and if needed change the timing belt by a service tech or a good mechanic. The timing of the car is pretty spot on, and when I listen to the motor it doesn't seem to be misfiring or running rough at all. Timing belts are essentially what keeps your engine and its various components running in sync. I just changed the timing belt, balancer belt, water pump, tensioner wheels and other external belts. If you have a bad or worn out timing belt, the following are symptoms that may occur. It is intended to help you map out a troubleshooting plan. He did notice rough idle. How much is it to change the motor mount? Easy job for a weekend mechanic or no?I have a rough idle! Help!? It could be the idle speed too low it should be at 900 or choke is sticking the motor mounts are esey too do and is the check engine light still on go buy the reader at local auto store 20 bucks take care of that problemI have a rough idle!. • Rough idle. > > I don't know how to check the idle RPM. Airflow meter faulty, disconnect to verify. Try to ignore the valve noise. Timing belt, water pump, and all drive belts/pulleys were replace yesterday, but the rough idle is still there. Run the engine briefly with the drive belts removed, to eliminate the fan or any belt-driven accessories as a possible cause. Timing Belt change & Codes Sign up here ! My car drives fine at normal speeds, but when in gear and idling, it idles a bit rough. Hey all, So a few weeks ago I had my timing belt, and s-belt changed by a Subaru dealership. The ECU now has default numbers in its trim memory - it has to adjust them to match the tune of your engine and its sensors and actuators. - you just changed the timing belt and now you have an erratic idle. Can bad timing cause your car to idle rough and vibrate badly while in gear? If the timing is off a lot it can make your engine misfire and may not fire on every cylinder on every rotation. Now when we start it, the engine idles rough for a few seconds, then revs cleanly to about 2000 RPM, then returns to crappy idle and/or dies. Hopefully the scenario presented is not the case. Also my spark plug gap spec is. • Rough idle. Take it back to the mechanic and tell him that it isn't right. Pulled codes and got P0340 for camshaft position sensor circuit bank 1. You're right to assume that something else going on. Verified all timing. I bought it with a blown turbo and replaced that along with the timing belt and still had a rough idle. I hope (think) this is fixed on the 2012 and later models and some have said it has. How to replace fan belt. 3 L 4-cylinder, FWD with a factory turbo charged engine and 155 000 miles on it. Problem after timing belt change - Astra. The timing belt was changed a while ago and the driver thinks that it started after the timing belt change. I just changed the timing belt, balancer belt, water pump, tensioner wheels and other external belts. I shut the car off and proceeded to troubleshooting. Got it back and noticed rough idle. My car sometimes idles rough after it is started. 5 DOHC for a coolant leak. A "memory saver" device, when used correctly, will retain the computer memory, clock, radio presets, power seat position and many other settings. 750 RPM is just where it is supposed to be. My questions before tearing it down again are:. intervals while the later model Quests and Villagers are specified to have the timing belt changed at 105,000mi. Idling rough 12 Answers. My 1994 Ford F-250 with a 5. It has 167,500 miles on it. So today, I decided to get it changed by this mechanic. I installed a billet timing tensioner and new timing belt tonight. After i left the shop, i noticed that the car idled a little rough when stopped and in Drive. car has got 315km as for timing marks i didn't check it but thought about it and i will just been -10C all week and car is in a back yard however last time i checked timing belt about 20k ago about 3-4 months and looked like new and i bought the car at 260km and last owner told me it was just done. I asked him if it was normal for a car to run rougher after a timing change, and he said sometimes it can happen in a diesel. any help for resolve is appreciated. Hi All, For a while now, I have experienced a metallic banging sound coming from low on/in/very-near the engine during a rough idle. But, now the car takes forever to start and feels like its misfiring. Since last week the car will now stall intermittently at when stopping or parking. Rough idle and 2 misfires after timing belt change After the timing belt change on a 03 honda civic ex coupe, we drove enough with the car to burn about a quarter of a tank of gas. Hopefully Chevy looks into a recall to fix this as it appears to be a software glitch more than anything on the ECM/TCM modules. Rough Idle after Engine Degrease (Low-Pressure Wash) Help, Advice and DIY Tutorials on Volvo's extremely popular car line -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine. I scanned it and got six codes. Also my spark plug gap spec is. Now when we start it, the engine idles rough for a few seconds, then revs cleanly to about 2000 RPM, then returns to crappy idle and/or dies. I was at a stoplight and the rough idle got considerably worse, car was vibrating. This throws off cam timing, setting in motion a series of events that prevent your engine from achieving proper timing. Try to ignore the valve noise. No more suffering with a misfire and no more stress about what is wrong and how you're going to have it fixed. My mechanic changed my timing belt 1 week ago and since when idle the car is on 800rmp feels like it will cut off any minute and its very noisy and vibrates when idle. A rough engine idle or stalling is a common complaint, but in some cases can be difficult to resolve. This also goes along with the fact that it ran fine before the timing belt was replaced. After i left the shop, i noticed that the car idled a little rough when stopped and in Drive. I have changed the spark plugs, air filter, spark plug wires, and the coil pack. This is a sign that you need to replace the timing belt. I replaced the fuel filter and it seemed to help these episodes but now when the car is at idle it has a mildly rough idle where the RPM's bounce between 500-800 and you can here the intake suck in air through the filter (short ram on right now) in short spurts. This vehicle should be. I reset the ECU because it was recommended on a Civic forum; didn't make any real difference in fuel economy or rough idle. But there's a simple way to prevent all of these problems. 0L ( XJ ) limited trim. If your Hyundai Sonata idles rough, is sluggish, clattering or backfiring, your timing chain probably needs replacing. Check engine light and trouble code P0300 misfire. 3L 4 cylinder and manual transmission. As your car rolls along, the engine takes in a mix of air and fuel that allows it to keep moving. Car has a rough idle. Many modern cars have a timing chain instead of a belt. If the timing is off between the cams then it will cause a rough idle but will run fine while driving just like you are having. Other things to consider that might be heat-related are the plug wires. Except: Idle is very rough, idle speed ~500 RPM. He did notice rough idle. Timing belt and water pump changed at 289,000 KMs New spark plugs at 292,000 KMs The issue started as a intermittent rough idle at stop lights and pulling into parking lots its would go down to 200 rpms then pick right back up. The mechanic advised changing the water pump, thermostat and pulley. The mechanic suggested I put in injector cleaner-might help. If you suspect leakage, which can be evident by a pool of engine coolant emanating from within the timing belt cover, budget for imminent replacement of both the pump and the timing belt. Also, changed all belts, hoses, oil,water pump. Have the car tested. You wont find a more nerve racking job on a car than a timing belt. New plugs, wires, timing belt, water pump, tensioner, 2 smooth idlers and 1 cogged all replaced. Installation was no problem, but after firing it up the first time, I experience a very rough idle and misfire that becomes a flashing CEL if I increase RPMS. What's the overall condition of the car? Where do you live, rust country or not? If you do have a burnt valve, yeah, the fix would be to pull the head off, replace at least that valve, probably replace at least all the exhaust valves, put all back together with new head gasket and timing belt. We have tried a different AFM and coilpack and still the same and even on a computer but nothing. • Check engine light. I noticed after picking it up that the car had a rattle under the hood that sounded like a tin can. It runs decent going down the road but idle is very rough. 0L ( XJ ) limited trim. I replaced the cam seals and followed the instructions of this write up to a T which I believe to be the correct way to do it. I now get a bad engine vibration at idle and when backing up and pulling forward. car has got 315km as for timing marks i didn't check it but thought about it and i will just been -10C all week and car is in a back yard however last time i checked timing belt about 20k ago about 3-4 months and looked like new and i bought the car at 260km and last owner told me it was just done. After doing the timing the car idles badly after accelerating. So I bought this ranger about two months ago. But after a little while the idle starts surging. It was pretty uneventful. Rough idle after timing belt change I just changed the timing belt on my 2010 Charger 3. the outside ones also have to be straight. Now when we start it, the engine idles rough for a few seconds, then revs cleanly to about 2000 RPM, then returns to crappy idle and/or dies. There is the odd smooth one, but I haven't seen one yet. It's very easy to advance the timing when doing a timing belt change. No more suffering with a misfire and no more stress about what is wrong and how you're going to have it fixed. You, my good sir are, one smart cookie. Got everything installed and fired it up. Since the timing chain controls when the intake and exhaust valves open in relation to the pistons, a worn chain can cause the valves to be out of time, opening and closing slightly early or late. Replace it using a timing belt kit, of course! Your timing belt is one of those vital engine components that upon failure requires immediate replacing. 3 days after picking the car up, I went to set off for work. What could this be? × We use cookies to help our site to work, to help us understand how it is used, and to tailor advertising on this and other sites. If the car starts when cold but, idles rough or does not want to stay running, this can indicate a problem with the engine. check the timing and if needed change the timing belt by a service tech or a good mechanic. This can make the engine idle rough, misfire and/or stall. Any ideas?. My car is a 2007 Mazda CX-7, 2. 6) Clean the IACV screen(s). This guide suggests how to change the timing belt which has neither come off nor skipped badly. No more suffering with a misfire and no more stress about what is wrong and how you're going to have it fixed. So the low idle thing has been solved. Got it back and noticed rough idle. 8 DOHC Running rough, bad idle and no power. The idle is rough and manifold vacuum is only 14" hg. Welcome to the Club4G Forums where you can join fellow owners from all over North America discussing anything related to the 2006+ Mitsubishi Eclipse. No rough idle! Removed plugs from all 6 coils, one at a time and each caused the rough idle until re-plugged, and normal idle returned! Went to test drive the car, initially putting in reverse to back out of driveway. It has not stalled in the 50kms I have put on it since the belt change. The idle is much rougher than it was before and it's struggling to hold a steady idle. How much is it to change the motor mount? Easy job for a weekend mechanic or no?I have a rough idle! Help!?It could be the idle speed too low it should be at 900 or choke is sticking the motor mounts are esey too do and is the check engine light still on go buy the reader at local auto store 20 bucks take care of that problemI have a rough idle!. We can now go into more depth on each of these categories and list the different possibilities. I read someplace that the S&S manual recommends a belt inspection at 10k miles and a replacement at 18k miles. CarComplaints. Problem is the car idle's is slightly misfiring to the point where the speedo lights dim on and off. I shut it off, cooling fans were running (34 deg F outside) Started back up, idle was fine.