Fixing Rough Idle video on Pinterest…. Occasionally while driving the car in the rain, the car would have the tendency to bog down or have less power. This hesitation has constantly gotten worse. Any help will be greatly appreciated. While this might not seem like a pressing matter, a rough idle can signal a problem with the car's engine. Car in park, foot on brake - car shook, sounded like it would die, and I sat there and watched the RPMs drop while idling. Car has very rough idle & burnt smell The car was purchased in May with check engine light on. i had to limp it home and to auto parts store. While some cases are less severe than others, a rough idle is usually identifiable by a shaking and bouncing sensation in the vehicle. When i try to start it up it would have this weird shaking and rough idle when it does start, sometimes it starts up fine and runs fine sometimes it makes these weird. When the AC kicks in, the engine will drop some RPM, and the actuator opens to allow more air into the engine. If some is faulty, shaking occurs at cold start. BA Ford Falcon Running Rough - Ford Modifications Website. Gassing the rpm to around 1000 smoothes it out only a little you can still feel the roughness, but. The Idle Control Actuator is what controls the engine idle. But these engines with obver 10-15k miles are also developing a rough idle in addition to the slight mount vibration due to the coking of the intake valves causing uneven air distribution at idle. I took it to a shop and it apparently wasn't shaking at the time and they told me there was nothing wrong. Very easy takes a couple hours the first time, less once you've done it. I apply gas and it continues to stumble and jerk but after about 30. Now the car started to act up on my way home from work today. Finally ran diagnostic tool and came back with P0172 System Too Rich (Bank. Can tell you mine idles at around 600 - 700 rpm and when I just come to a stop the car will dip sometimes to below 500rpm and then back up to. Too much of either can result in severe running issues. After I cleaned the MAF sensor and Throttle Valve, and replaced really dirty air filter, car idled noticeably smoother. At idle, at least temporarily, you might experience car shaking at idle, as well as poor acceleration. Car idles rough refers to when an automobile's engine runs too slowly or it runs erratically while disconnected from a load or out of gear. The car runs perfectly all of the time except when idling. The shaking has gone but its still shakes slightly but nothing bad as before no shaking is felt in the steering wheel or gear stick. The term "rough idle" means that the engine does not run smoothly when idling. Today while working on my 86 T-Type, I noticed that at idle the entire engine was shaking. Car runs rough and shakes while idle at stop light. 18 degrees out, started car and idled at 1000rpms which kept the rough idle at bay until idle went down to 600 rpms and started shaking and threatening to stall, and the service engine soon light started blinking on and off. When I turned it off, the engine feels normal again. It is barely noticeable but just enough to be annoying. In the long term, there are side effects to this shaking that will cause premature wear on many of your car's systems, from tires to transmissions. Any help will be greatly appreciated. The revs jump up and down and you can feel vibrations on the inside of the car like the engine is shaking vigorously. It idles pretty rough both in park or in drive, and it doesn't matter if it’s at start-up or after the engine’s been running for a while. It's that common rough idle problem with the protege. 1976 to 1993 Gas Engine Shakes at Idle ( Runs Rough ) tips on how to go about troubleshooting rough idle problems on your own. In an attempt to restart, the motor turned over easily but won't start. Below are the four most common. 2) Two cans of diesel purge (Dieselgiant procedure). Once fixed, the car blew ice cold and idled completely normally. I also noticed that upon test driving to check the speedometer (working on a code 24), the up shifts were sudden and hard, the downshifts also hard and unpredictable. Both my cars do this, but i've been unable to solve it. The car would stop accelerating randomly on the highway. Car in neutral, foot on brake - car did not like that. If it is diesel (especially older one) it is normal thing if really cold. I can rotate the dizzy clockwise and the idle seems better, than if I rotate it counter clockwise. Perhaps your car is idling below its regular speed, or you’re seeing inconsistent RPMs on your gauge. I had the spark plugs, wires, and coil replaced. Any thoughts would be very. Seems to run very rough at idle in reverse. its very quite. I've used both 87 and 91 octane gas. I was told to check the timing but can't find the timing marks. Check engine light flashes usually when going up small hills. I didn't read the question well. The best course of action is to take your vehicle to an Omaha auto service professional, but here are a few things it could be…. Rough idling when hot is engine related, and grinding/shaking in the body during braking are not connected. CEL light flashing. Now when I shut it off and have it sit for more than 5 min and re-start it, thats when it will stutter and shake and when i give it gas, it bogs alot and stutters almost likes its gonna die. Can you get codes pulled on. It is very hard to decipher a pattern for this shaking, some days it happens, others it all seems fine. 2000 Dodge Neon shakes while stopped and in gear. If a 0403 code, sounds like egr is sticking open when it runs rough. Its a 302 with a 2bbl. I had the spark plugs, wires, and coil replaced. 4 V6 with approx 140000. Car shaking when stopped. reverse is fine. First I will show you a video of such a rough idle and then list the possible problems that may cause that. I had PepBOys diagnose the problem and they told me i needed new O2 censors, spark plugs and ignition coils did all that and still didnt work, then i was told by my mechanic it was the computer, that didnt work either, then told it was the fuel pump that didnt work either. 2000 Dodge Neon shakes while stopped and in gear. It is giving off a code: misfiring on all cylinders. Not as bad since the engine mounts but here's another clue as to what might solve some symptoms. We have been driving a Toyota Highlander for two years which is smooth as silk at any speed. The car also idles rough even though I installed new plugs, wires, can sensor, and idle air valve. You may have a misfire, a vacuum leak, or a clogged/faulty idle air control valve. Hi, I have a 98 Ford Escort. Recently bought and it failed smog so i tryed crc surepass and shortly after the car started running really rough( at idle) air conditioner makes it r 2000 nissan sentra running rough/shaking at idle - Nissanhelp. As the title of the post states, the motor of the car seems to shake a lot when at idle in gear. New plugs, cap, rotor, coil, electronic ignition. I know for fact that my maf is bad and need it replaced, not sure if that has anything to do with it. As well the car shakes when it is idling. A misfire simply means that one or more cylinders are not firing correctly or not firing at all. It is the automatic. During the rough idle, I notice the tach needle quivering and that the engine is revving lower than normal. Or maybe you hear a skipping sound when the engine is running. What causes a rough idle? A rough idle can be caused by many different car faults. 5L new engine? Normally Aspirated Powertrain If they are rough or the engine is shaking, that. I should also mention it’s rough in a sense that it ever so slightly,mildly shakes every 4 seconds also to add to this whilst idling every few seconds it sort of sounds Like a clogged misfire but I have no check engine light or anything. If the idle gets worse, that cylinder is functioning. Almost reminds me of a downshift, but it keeps doing it until I apply the. But it lasts for a couple of minutes after you start the car. I also noticed that upon test driving to check the speedometer (working on a code 24), the up shifts were sudden and hard, the downshifts also hard and unpredictable. 4 V6 with approx 140000. Here's the problem - with the transmission in drive and the car not moving, the engine has a rough idle and rhythmic shake. Some folks have told me to check the ignition system, others the vacuum system. Runs Roughly, Shaking And Vibrating. But I've learned that if I lift my foot off the brake a bit, there is a point where it feels like something disengages, and the shaking stops. What you describe is normal. shakes at 40 mph Car shakes at about 40 mph in low gear and it also idles rough. Started to drive. when i give it a lot of gas and get the RPMs up high, i can shift gears without too much loss of power and shuddering, but i really have to rev it. im not sure what exactly it is theres to many possibilities on whats wrong. I am noticing engine shake at the time of engine start and stop (Switch off). Spark plugs provide the spark that ignites the air and fuel mixture within the cylinders. The car also idles rough even though I installed new plugs, wires, can sensor, and idle air valve. I don't remember what RPM the car was idling at before, but it appears to be hovering between 500-600 now. This time, cracked intake manifold but got it at cost ($330)and all labor wrote off on the first trip. rough/uneven idle often caused by air leaking into fuel system. Express Auto Inspections says: While modern vehicles use a fuel injector system to burn gas, many older cars use a carburetor to process fuel. Like said in previous posts once the revs rise its fine smooth and quiet, but on idle sat at lights or in traffic its horribly loud. I'm not exaggerating. Gets better with A/C or defroster on. Significant improvement in power. Its a 302 with a 2bbl. Car Payment Calculator; Threads Tagged with rough idle. The car shakes a few times and stops. Is that normal? I had the hood off so i could clearly see it was shaking. When warm and you come to a stop (it's a 5 speed so I'm in neutral or the clutch is in) the RPMs will drop to about 500 and the car will shake, but only for two or three seconds, then the RPMs come up to normal, and the car idles normally, but quite a bit rougher than when it's cold. This has been occurring for the past 2 months. it's. a bit better but it still. I replaced all plugs and the TPS. i have a 91 500sl and i just recently got it out of storage, and when i went to start it it started but had a really rough idle after starting and the engine was shaking a lot. Diesel cars have glow plugs which preheat the air in the chambers. When it happened the first time the check engine light came on. A cold-start rough idle, for example, may be caused for different reasons than a vehicle that idles rough only when the engine’s hot. Why is my car missing, surging, shaking and rpm's idling radically Browse other questions tagged rough. It idles pretty rough both in park or in drive, and it doesn't matter if it’s at start-up or after the engine’s been running for a while. Also when I return to park the shaking goes almost completely away, even with the a/c on. This usually happens when I'm sitting at a stop light or when the car is in park. When i try to start it up it would have this weird shaking and rough idle when it does start, sometimes it starts up fine and runs fine sometimes it makes these weird. not rough idle, it's steady and if you look at an RPM gauge it's ok, but it shakes the car like it's going to die. If your car shakes while stopped it's time to see the expert mechanics at AAMCO Utah for a free diagnostic service to determine the root of your engine shaking. I'm assuming this to be abnormal, as I don't experience any shake going to WOT on my other car, a 99 Almera which also has a low occasionally erratic idle and even stalls a few times a day ( haven't had time to work on it yet ). Car has very rough idle & burnt smell The car was purchased in May with check engine light on. It began when stopping on off ramps from highways. Many systems and parts are used to keep the engine idling. i can also hear a noise. shakes at 40 mph Car shakes at about 40 mph in low gear and it also idles rough. Usually when I'm at a stop, it idles at just under 1k RPMs. Bad Engine Mount (Idle, Accelerating and Driving) - The engine mount is what connects the vehicle's engine to the rest of the body of the car. Dirty fuel injectors. When the cars idle gets rough, it hard to comprehend the related causes. Hey All: I am new to the board, i purchased a 2005 Corolla CE, Package C about 3 months ago, and i notice that once the car has reached normal operating temperatures it will shake at idle, its nothing major, just a minor little shake like its going stall then it picks back up, its only about 100 rpms differnce between the stalling point and the pickup point. 6R has 6,800 miles thus far and I have not experienced any rough idle at a stoplight with the a/c on. I ended up driving another car that day, because of the shaking. The car is a 1993 Camaro 3. Try an experiment - - With the A/C on with both red lights lit up, observe the vibration at idle. I have the p1518 code on my 98 Mark VIII and here are the exact symptoms. a bit better but it still. After a while, my a/c would begin blowing warm. Dirty Fuel Injector Modern vehicles are fitted with fuel injection systems, which inject fuel into the cylinders to create a mix of air and fuel to burn. * Oil is fine, coolant is clean * No smoke from. Bad spark plugs, bad spark plug wires and a bad distributor cap are other common causes of rough idling. Ok so we got the car back together with a refurbished engine and so i taking it for a test drive and noticed under hard acceleration the engine would shake. When your car is experiencing a rough idle, your engine may chug, vibrate, or shake while it’s running. When i say idle is rough i mean that if you are sitting at lights you can feel the car kind of rocking gently. I've read some other posts in other categories, and the IAC seems to be a usual suspect. The day after the pipe came off I had been driving for about 5 minutes and suddenly it started to run horribly: huge loss of power, delayed/weak response to gas pedal, trouble changing gears a couple times, whole car shakes when idle in any gear, also after coming to a stop or reving it then letting it idle the engine will start to sputter and. But it lasts for a couple of minutes after you start the car. They said they could not reproduce the problem so they left it at that. Engine rough idle problems arise because car engines are demanding. I do not know when the problem started I just bought the car and thought it just needed a tune up. Rough idle is easy to detect when you start your vehicle, and it may be dependent on the engine temperature when you start your car. Car would not restart for like 5 minutes or so, but then it did. 6R has 6,800 miles thus far and I have not experienced any rough idle at a stoplight with the a/c on. There are many types of control systems for this device however if you remove the hose labeled "tank" and feel vacuum at the port during idle then you need to service the system and probably replace the control valve. When im idling my engine shakes the entire truck. So, why is your car shaking at idle? Here are some possible problems causing car shaking and what you can do about them. wide open throttle has limited power and feels like its sputtering. 5L new engine? Normally Aspirated Powertrain If they are rough or the engine is shaking, that. 1995-2000 Dodge Avenger - engine shaking, rough idle? - ok this just started last night on my way to work. Violent engine shake and really rough idle 3 Answers. I had the spark plugs, wires, and coil replaced. 18 degrees out, started car and idled at 1000rpms which kept the rough idle at bay until idle went down to 600 rpms and started shaking and threatening to stall, and the service engine soon light started blinking on and off. If you have inserts then its just due to the fact that they transmit more vibration from the engine to the rest of the car. 2 L V6 42,000 Miles I have around 42,000 miles on my 2006 Acura TL with a 6-speed manual transmission. My car only started shaking at idle after i installed the inserts. a bit better but it still. 2010 Camaro LS3 - misfires and rough idle Those of you that are familar with this engine, I have a couple of questions. Diesel cars have glow plugs which preheat the air in the chambers. And it does for the most part, but then it clicks and the RPMs drop to about 500 RPMs, bouncing barely over and barely under, for a few seconds. Have a smoke test done to find where all the leaks are and replace the hoses. Rough idle at start up then smoothes out after 30 seconds 200 1990 : The whole car is shaking. The RPM goes up and down when idling. I was told to check the timing but can't find the timing marks. It is very slight barely make the tach move. I'm at 2700 miles and it still idles rough with the transmission in drive. Why is my car missing, surging, shaking and rpm's idling radically Browse other questions tagged rough. Below are the four most common. Causes of Shaking Car. Usually when I'm at a stop, it idles at just under 1k RPMs. Engine shakes while idling and rough acceleration (Is this normal?) Jump to Latest Follow 1 - 3 of 3 Posts Back when I got the car in August 2011, everything was. The problem is just that it's very rough, and that's not just from me sitting in the car saying, "Ow," which some would dismiss as my urethane motor mounts. It had 5,700 miles on it at purchase, and now has 19,000. The engine is running to provide heat in the car. As the title of the post states, the motor of the car seems to shake a lot when at idle in gear. Why is my car missing, surging, shaking and rpm's idling radically Browse other questions tagged rough. Diesel cars have glow plugs which preheat the air in the chambers. Significant improvement in power. Point is below 900 when the idle gets rough the engine shakes the car and some clattering noises occur. Does your car shake or shutter while stopped or idling? These 5 reasons could be why. At idle, at least temporarily, you might experience car shaking at idle, as well as poor acceleration. It should NOT apply vacuum to the system at idle. On our recent road trip through the Southwest where the high each day was from the high 90s to the low 100s, the a/c was essentially set at 68 degrees on AUTO the entire time we were in the car. a very early 2007 and no shaking in any gear during idle. You can often also feel the strange vibrations inside your car while sitting in the driver seat. But I've learned that if I lift my foot off the brake a bit, there is a point where it feels like something disengages, and the shaking stops. I'm too having this problem with my 2007 mk5 Golf. but when i go to accelerate, the car shudders and shakes. They said they could not reproduce the problem so they left it at that. 5T with 3400 miles. bmw car parts bmw body parts bmw parts catalog bmw parts uk bmw parts canada Rough Idle, Vibrating & Shaking Idle Problem BMW 5 Series 3 Series E90 E39 528I 328I M5 M3 Repair Fanatic. Pull the cover so you can see the coil packs. When warm and you come to a stop (it's a 5 speed so I'm in neutral or the clutch is in) the RPMs will drop to about 500 and the car will shake, but only for two or three seconds, then the RPMs come up to normal, and the car idles normally, but quite a bit rougher than when it's cold. If your car shakes while stopped it's time to see the expert mechanics at AAMCO Utah for a free diagnostic service to determine the root of your engine shaking. Does anyone know what could be the cause of my hesitation and rough idle issues?. Toyota Camry 2007-2011: Why is My Car Idling Rough? Why is My Car Idling Rough? Is your Camry running rough at idle and causing the engine to vibrate like it's had one too many cappuccinos? There are some simple solutions that'll cost you less than a Starbucks mocha. Started the car after work and it began to idle real rough, shaking badly, RPM's drop to almost 0 then shoot up to 1k in neutral or 1st. I am noticing engine shake at the time of engine start and stop (Switch off). However, rough idling, which is the shaking or vibrating of a car while idle indicates that there possibly is something wrong with the engine. I was told to check the timing but can't find the timing marks. If some is faulty, shaking occurs at cold start. My car shakes a lot when idling, runs very rough and using too much fuel. The motor seems to be idling OK, I don't seem to hear any missing or rough running. The spark plugs provide an electrical arc that ignites the gasoline vapor in the vehicle to push the piston and provide power to move the car down the road. Car Payment Calculator; Threads Tagged with rough idle. Clearly, the car needs to display the rough idle while you perform these tests. In addition to this I have rough idle problem when accelerate or stop at signal light. Engine rough idle problems arise because car engines are demanding. Just started today; maybe building for awhile. I haven't been able to drive my car in 5 weeks. The shake/shutter goes away when put in neutral or park. Many different problems could result in a rough idle for your car or truck, including: dirty fuel injectors, clogged air filters, bad spark plugs, and a variety of exhaust system issues. This article applies to the Honda Civic (1992-2000). I tried to keep the rpm up on the way home, but it would drop to 600(normal idle) on occasion and be fine. Rough idling when hot is engine related, and grinding/shaking in the body during braking are not connected. The car shakes will intensify as you accelerate faster. Before, my car would start and rev for 2 seconds then die. 1995-2000 Dodge Avenger - engine shaking, rough idle? - ok this just started last night on my way to work. If it is, there's a problem. A customer with a Mazda 626 and a four-cylinder engine had a very rough engine idle. 2) Two cans of diesel purge (Dieselgiant procedure). Components in the fuel, ignition, emission and other systems should work correctly. Rough idle? 940 maintenance & nonperformance. If your car shakes at idle, take it to a certified mechanic, like the ones at our Honda dealership, for diagnosis and correction. Any help will be greatly appreciated. Idled well for a while but after driving for 20+ miles, started shaking again at idle. I notice the car "shakes" as you can feel the car idle and it's not smooth. A4 (B8 Platform) Discussion - Rough Idle, Engine Shakes, EPC Light, Check Engine Light - Hey, I have an Audi A4 2010 and i'm having some issues with it. I do notice that the rpms at idle do not increase when turn the a/c compressor on. I had four issues with it: 1)Shaking while idle They did nothing on this. While waiting for the car to get warm, the idle became very low (400-600RPM) or rough and the car died. my truck does something similar. Other issues are, during winter after driving the car for about 2-5min and the car is close to running temp, when stopped the rpm drops to too low for a car which is still warming up (below 800rpm) and the engine “kicks” (no ac on). I had the spark plugs, wires, and coil replaced. The shaking has gone but its still shakes slightly but nothing bad as before no shaking is felt in the steering wheel or gear stick. Does anyone know what could be the cause of my hesitation and rough idle issues?. Once fixed, the car blew ice cold and idled completely normally. Diagnosing the rough idle when warm from an armchair is hard. I've seen it happen a couple times. I've replaced all motor mounts except for two under the transmission, but I took those out and they look fine. I didn't read the question well. Spark plugs have not been changed. Just an update - got the car back after another couple days at the dealership. If the idle is unchanged, the associated cylinder is not functioning. However beginning around October, as the weather got colder, my engine began to sporadically shake at idle, sometimes at start-up, sometimes at red lights. As to the idle issue, it idles steady at 750 - with or without the air conditioner on. Does the car go from high to low rpms when standing at a robot/stop street, or when the car is started. Idled well for a while but after driving for 20+ miles, started shaking again at idle. THE SHAKE CAME BACK but 90% better now since i changed the mounts. The least expensive. I called it a shimmy because it's not as if the steering wheel is shaking, but rather the entire vehicle under me. This article applies to the Honda Civic (1992-2000). This time, cracked intake manifold but got it at cost ($330)and all labor wrote off on the first trip. I noticed my a/c condenser fan wasn't turning on. Some folks have told me to check the ignition system, others the vacuum system. but when i go to accelerate, the car shudders and shakes. While a rough idling engine may seem to be a simple inconvenience it often indicates a deeper problem within the engine. Hey Everyone, I could really use all your help guys I have a 2000 Toyota Celica GTS manual and after it warms up it begins to bog, idle rough and even stall. The car will also idle below its regular speed, display inconsistent RPMs and may produce a shaking, skipping or slipping sound when the vehicle is running. - Answered by a verified Chevy Mechanic. If it is diesel (especially older one) it is normal thing if really cold. The engine in my car shakes too much. Your a/c should NOT cause your car to run rough. You may have a misfire, a vacuum leak, or a clogged/faulty idle air control valve. shaking at idle when in gear? but when in D it would shake the car quite a bit and would not when it was in neutral. During the rough idle, I notice the tach needle quivering and that the engine is revving lower than normal. A top sign that your car may need serious engine repair is when your car shakes as it idles at a stop. Noticeable improvement but still rough idle. I didn't read the question well. They said they could not reproduce the problem so they left it at that. A customer with a Mazda 626 and a four-cylinder engine had a very rough engine idle. Car runs rough and shakes while idle at stop light. And yes, if it was too big of a cam, then upping the idle as was mentioned would help, but I sure don't want a new car with a 1000 rpm idle! I put new cams in my '89 SHO race car and now THAT is a hot cam idle. 2 L V6 42,000 Miles I have around 42,000 miles on my 2006 Acura TL with a 6-speed manual transmission. Does anyone know what could be causing this and if you know. While this might not seem like a pressing matter, a rough idle can signal a problem with the car's engine. When in drive the engine shutters whether A/C is on or off. Engine idles rough, to the point that the whole car shakes. Broken hose can be the reason making car shakes when stopped Every vehicle has several of these connected to various engine points. Idled well for a while but after driving for 20+ miles, started shaking again at idle. just started my car on a cold start and while warming up my engine started to really shake and the idle kept going up and down like I have wild cams. If it is diesel (especially older one) it is normal thing if really cold. After Driving For Awhile, (50 miles or more), Car Shakes Going UpHill, Automotive, 67 replies Accord shakes when idle with AC on, Honda and Acura, 1 replies Car shakes a bit when A/C is turned on, Automotive, 3 replies 02 Elantra shakes at low speed (15-30 mph), Hyundai and Kia, 10 replies front end shakes, Automotive, 13 replies. However, the complaint from the driver was a lack of power. The internal combustion engine requires a precise mixture of fuel and air to run correctly. The first year was great, but shortly after I started having problems with *extremely* rough idle - as in the car shaking. I ended up driving another car that day, because of the shaking. why is my car still shaking and running rough? 4 Answers. But these engines with obver 10-15k miles are also developing a rough idle in addition to the slight mount vibration due to the coking of the intake valves causing uneven air distribution at idle. He is an ASE Certified Master Technician and has bruised knuckles to prove it. Shop Ford F-150 vehicles for sale in Independence, KS at Cars. Diesel cars have glow plugs which preheat the air in the chambers. Car shakes when idle can also because of this car part This one along with other belt types such as V-belts and serpentine belts could create this annoying problem. A perfectly good running one will feel like 2 cyls are misfiring if you open egr at idle in gear. After picking up the car, though, we noticed that the idle seemed much rougher than it had in the past. The steering wheel shakes a little bit. I took it to dealer and this is how it went: 1st time: they said the codes were for misfires on all 4 cylinders, and they decided the cause was using "discount gasoline" (i. Finally ran diagnostic tool and came back with P0172 System Too Rich (Bank. I used this and it was great. It has been a few days since I last drove my car and today I started noticing mild difficultly accelerating in first gear, it was like there was a drag on the car, similar to taking off with the parking brake still engaged. Holes in the air intake valve. In the long term, there are side effects to this shaking that will cause premature wear on many of your car's systems, from tires to transmissions. Once warmed up, the car idles really rough in gear (Drive), RPM really starts to fluctuate between 500 and 700, the car kinda shakes, and the engine is likely to stall if I leave it in gear (and with car not moving) for much longer. It shakes more than it used to in drive , but reverse is much worse. Broken hose can be the reason making car shakes when stopped Every vehicle has several of these connected to various engine points. Is that normal? I had the hood off so i could clearly see it was shaking. Now it is at most red lights and stop signs. it has been happening for some time. If a car shakes when it is idling, the cause is usually something happening with the engine, such as needing new spark plugs. It does this when in park as well as when in gear at a stop. No shaking at all. If a 0403 code, sounds like egr is sticking open when it runs rough. if the car shakes alot it´s most common not a problem of the idle, it´s a hint that you should take a closer look at your engine because there is something wrong with the air-fuel mix, or the ignition. Dramuta, change the CCV (Crank Case Vent Valve), i Changed the Intake CPS(cam shaft position sensor), i cleaned the ICV( Idle Control Valve) and Cleaned the MAF, and i replaced the CCV (Crank Vent Valve) and the Hose to the Valve Cover and i still have rough Idle and Sluggish acceleration, when i press the gas pedal and the RPM goes over 2000RPM the whole car shudders and shakes and no. The day after the pipe came off I had been driving for about 5 minutes and suddenly it started to run horribly: huge loss of power, delayed/weak response to gas pedal, trouble changing gears a couple times, whole car shakes when idle in any gear, also after coming to a stop or reving it then letting it idle the engine will start to sputter and. This was the second time I took the car in for that problem. My son has a 2001 GMC Safari with a 4. After a while, my a/c would begin blowing warm. … Continue reading → 2001 GMC Safari Coolant Leak and Rough Idle. Loses power at seemingly random times. But these engines with obver 10-15k miles are also developing a rough idle in addition to the slight mount vibration due to the coking of the intake valves causing uneven air distribution at idle. It's not going to affect how the car idles. The car also does not shake at idle when in park or neutral. Chip is correct. Air filter has nothing to do with it. If it is not hitting evenly on all cylinders (“missing”) then get new plugs and verify ignition performance. I took it to dealer and this is how it went: 1st time: they said the codes were for misfires on all 4 cylinders, and they decided the cause was using "discount gasoline" (i. 95 for guys like me to ask a single question!. original carb and new one acts the same , i wonder if there is something else. First get the car idling smoothly and re-assess if the shake is still that bad.