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Re: Relative compression tests, in cylinder and intake pressures
Posted to Technical Discussion Forum on 1/3/2020 3 Replies

Ive seen it on IDS on a couple of fords, as well as on GM. On all the cars we had it on...if you repeat the test several times, it will be off 1 cylinder in the order when its wrong, and be right other times. May have to do with starter speed fluctuations or c... Login to read more.

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