Quote:
Originally Posted by oldskewel
Good info, thanks. I'm still on all my original coils at 192k miles on my 2001 3.0i.
When I did the compression test on mine before doing the head gasket job, I got up around 190 psi on all cylinders. Lowest was 185. Did you not have the gas pedal floored during the cranking?
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I would swap out your coils, or at least carry a spare before a long trip.
As for the compression test, I did not pull the fuel pump fuse (I did pull all coils) and did not have throttle wide open. I was only testing cylinder 2 and was looking for a zero reading. I have seen burnt pistons and failed valves recently. my tester is also a little suspect.
To do it right, I would prefer to pull fuel relay fuse, do it warm, and do them all at once with throttle open. I would be more concerned with consistent readings, but would expect something closer to 190 across the board.