Tracking down a mystery misfire

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#41

12-31-2023, 02:23 AM

czerta

Three Wheeling

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Quote:

Originally Posted by JohnZo

If valve stem seal is not seated, it will easily lift off. But check compression first, all cylinders with all the plugs out and throttle blocked open, fuel pump disabled.

Understood, thanks.
Compression tester on the way

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#42

01-04-2024, 07:12 PM

disco96sd

Winching

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swap coil and plug to another cylinder - if misfire follows you know your issue

I would put in a new coil - set of plugs and leads

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#43

01-04-2024, 08:09 PM

czerta

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Quote:

Originally Posted by disco96sd

swap coil and plug to another cylinder - if misfire follows you know your issue

I would put in a new coil - set of plugs and leads

All coils are new, plugs are a couple hundred mi old at most and same with wires.
Waiting on compression tester.

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