Car idle very rough! HELP

Xfloridiankicks · 10-09-2018, 11:44 PM

I was out driving and I was going pretty fast, I heard some type of noise not as loud as a bang but just a little vibration. I couldn't tell due to the music being played, after that I slowed down and my car began to shake, pulled off the road immediately and popped the hood to see if I could see anything, I couldn't it was just idling very rough, turned the car off and on and did the same thing. thank god I was 5 minutes away from home, drove home parked it and let it sit for about 20 minutes, came back and still starts and idles very rough, SES light is on but wont be able to read code until tomorrow, any help is appreciated

kenni243 · 10-10-2018, 01:48 AM

Could be many things...Need codes.

lightmanek · 10-10-2018, 04:33 AM

Quote:

Originally Posted by Xfloridiankicks

I was out driving and I was going pretty fast, I heard some type of noise not as loud as a bang but just a little vibration. I couldn't tell due to the music being played, after that I slowed down and my car began to shake, pulled off the road immediately and popped the hood to see if I could see anything, I couldn't it was just idling very rough, turned the car off and on and did the same thing. thank god I was 5 minutes away from home, drove home parked it and let it sit for about 20 minutes, came back and still starts and idles very rough, SES light is on but wont be able to read code until tomorrow, any help is appreciated

When it happened to me, it was failed coil, but as said above, it can be anything.

Xfloridiankicks · 10-10-2018, 08:14 AM

Quote:

Originally Posted by lightmanek

Quote:

Originally Posted by Xfloridiankicks

I was out driving and I was going pretty fast, I heard some type of noise not as loud as a bang but just a little vibration. I couldn't tell due to the music being played, after that I slowed down and my car began to shake, pulled off the road immediately and popped the hood to see if I could see anything, I couldn't it was just idling very rough, turned the car off and on and did the same thing. thank god I was 5 minutes away from home, drove home parked it and let it sit for about 20 minutes, came back and still starts and idles very rough, SES light is on but wont be able to read code until tomorrow, any help is appreciated

When it happened to me, it was failed coil, but as said above, it can be anything.

Was it multiple or just one? Also just got off the phone with bmw they said it could be my charge pipe is cracked, hard to look at with airbox right over it, would that make any sense and would that throw codes

kenni243 · 10-10-2018, 07:35 PM

Yes, if its cracked you will get rough idle, especially if your driving hard which will cause boost leak...Is the car still getting rough idle after a cold start? Can you drive easy without stepping hard on the gas? You really need to check for code or take to a shop to have it look at. Calling BMW will lead you to more questions then answer.

Xfloridiankicks · 10-10-2018, 08:37 PM

Quote:

Originally Posted by kenni243

Yes, if its cracked you will get rough idle, especially if your driving hard which will cause boost leak...Is the car still getting rough idle after a cold start? Can you drive easy without stepping hard on the gas? You really need to check for code or take to a shop to have it look at. Calling BMW will lead you to more questions then answer.

Already read the codes, just a misfire in cylinder 3, took it all apart to replace everything and came down to not owning the correct socket for the spark plugs

Edris335i · 10-11-2018, 01:44 AM

Quote:

Originally Posted by Xfloridiankicks

Already read the codes, just a misfire in cylinder 3, took it all apart to replace everything and came down to not owning the correct socket for the spark plugs

Autozone sells the socket for it if you still need it.

10-09-2018, 11:44 PM	#1
Xfloridiankicks Private First Class 8 Rep 104 Posts Drives: 2009 Bmw 335i Join Date: Aug 2018 Location: Naples, FL iTrader: (0)	Car idle very rough! HELP I was out driving and I was going pretty fast, I heard some type of noise not as loud as a bang but just a little vibration. I couldn't tell due to the music being played, after that I slowed down and my car began to shake, pulled off the road immediately and popped the hood to see if I could see anything, I couldn't it was just idling very rough, turned the car off and on and did the same thing. thank god I was 5 minutes away from home, drove home parked it and let it sit for about 20 minutes, came back and still starts and idles very rough, SES light is on but wont be able to read code until tomorrow, any help is appreciated
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10-10-2018, 01:48 AM	#2
kenni243 Second Lieutenant 8 Rep 286 Posts Drives: 335I Sedan - Black/Black Join Date: Mar 2007 Location: Worcester iTrader: (0)	Could be many things...Need codes.
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10-10-2018, 07:35 PM	#5
kenni243 Second Lieutenant 8 Rep 286 Posts Drives: 335I Sedan - Black/Black Join Date: Mar 2007 Location: Worcester iTrader: (0)	Yes, if its cracked you will get rough idle, especially if your driving hard which will cause boost leak...Is the car still getting rough idle after a cold start? Can you drive easy without stepping hard on the gas? You really need to check for code or take to a shop to have it look at. Calling BMW will lead you to more questions then answer.
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