200k miles and she running but stumbling..
#14
Check intercooler and Cheerios
I had this symptom a few years ago.
The rubber "Cheerios" around the spark plug leads had degraded at the base of the spark plug well. I swapped out all 5 with a fellow owner and all ignition/boost issues went away up to about 4500 RPM.
Still stumbling, I began checking for boost leaks.
I had a pinhole in my stock IC that when replaced, cleared up the remaining issues.
The rubber "Cheerios" around the spark plug leads had degraded at the base of the spark plug well. I swapped out all 5 with a fellow owner and all ignition/boost issues went away up to about 4500 RPM.
Still stumbling, I began checking for boost leaks.
I had a pinhole in my stock IC that when replaced, cleared up the remaining issues.
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Denim'03
A4 (B6 Platform) Discussion
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08-04-2007 10:50 PM