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post #30 of (permalink) Old 01-07-2019, 12:22 PM
PSk
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Join Date: May 2003
Location: Tauranga New Zealand
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Quote:
Originally Posted by ossodiseppia View Post
Many cars ago, I owned a 16 valve VW Jetta. I took it to an independent VW/Audi shop because I could not figure out why it was running poorly at idle.

The employee did a compression test and told me my car needed a valve job. Why? It has low compression. I challenged him and asked how he ran the test. He ran it cold with the throttle closed. I came and got my car and paid my bill. On the way home, I bought a compression testor. I ran it dry/wet with the throttle wide open. The car had excellent compression. I went back to the shop and demanded that the employee re-run the test. He did, this time with the throttle wide open as per my instruction. The results were excellent. He said, "you did something to your car." ***? I got my money back.

Later, I figured out the issue, it was the differential pressure regulator.
OMG!

Pete

'71 1750 Series 2 GTV:
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156 Series 1 v6 ... and remember it's all just opinions
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