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-   -   Idle Surge/ RPM surge (https://www.audiforums.com/forum/audi-a4-8/idle-surge-rpm-surge-86099/)

scottlt79 12-28-2007 11:42 AM

Idle Surge/ RPM surge
 
Hey Everyone,

I'm new to the site here but I'll get right to the point.

I searched on here a couple months ago about my idle problem and found some info that I can't seem to find again.

Here is my problem. When I'm stopped, say at a red light, the car is in drive and the rpms bounce from about 800 to 1,000. The car wants to start to move when the RPMs spike. I'm no mechanic but I definitely know it isn't a good thing! Ha!

I have heard something about coils, maybe the timing belt. I do have a video of it from my phone but for some reason I can't put it up here. I can possibly email it to someone willing to help me out.

Any advice as well as approx. repair costs would be greatly appreciated!

techbod 12-28-2007 11:45 AM

RE: Idle Surge/ RPM surge
 
idle control valve or a vacuum line off

scottlt79 12-31-2007 08:38 AM

RE: Idle Surge/ RPM surge
 
Comeon guys, I thought there were some serious experts in here? Just a lamen looking for some good advice.

CRAZYHAWK 12-31-2007 09:45 AM

RE: Idle Surge/ RPM surge
 
Have codes read and post them.

CLX 12-31-2007 10:06 AM

RE: Idle Surge/ RPM surge
 
Sell your car and buy one with a manual. When was the last time you did basic things like changing your air filter?

scottlt79 12-31-2007 11:37 AM

RE: Idle Surge/ RPM surge
 
When I bought my car I was driving 30K a year and there was no way I was driving stick that mucha year. Had a manual and will only do it again as a 2nd car.

Anyways,I changed my air filter about 6K ago or go. Its not something that simple

CLX 12-31-2007 11:38 AM

RE: Idle Surge/ RPM surge
 
Yeah, it could be that simple. Low airflow at idle, the computer compensates for it by opening the throttle slightly. Check your vac lines and scan it for codes. Even if the CEL isn't on, there could be something.


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