jchi

Hi,
First problem , my 88 928S4 can't seems to hold idle when the engine is cold. I have to pump the gas pedal a few time to keep it from stalling. I have replace the idle valve but still has the same problem. Second problem, when the car comes to a stop with the gear in drive the engine would virbrate every 5 seconds. Can anyone help? Thanks in advance.

John
1988 928S4 67,000 miles.

Bill Ball

Temp sensor II, if you are lucky. Try the test descibed in the second part of this tip.

http://www.nichols.nu/tip816.htm

Rich9928p

It could also be a vacuum leak. There are many possible areas for leaks, check them out.

NickT

One of the best jobs I did on my '88 S4 was a complete top end R&R. All new vacuum lines, seals, Injectors cleaned, connectors.. everything I could lay my hands on while the intake was out. 928 Specialists has a kit now with all the bits and pieces.
The engine is nice and smooth now, and I had idle problems when I started. Turned out to be the front oil breather line under the intake.

jchi

Thanks to all. I will send her to another shop to chek it out. Any recommenditions on a good 928 specialist in Orange County, CA? Thanks, John.

Bill Ball

Before I put my foot in my mouth, where did you take the car already?

jchi

I am considering taking her to Greg at Precision in Anaheim, CA. I took her to Devito in Orange last week and they spent a three days without any success. John.