Modular V10 (6.8l)

Compression test

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Old

Feb 11, 2025 | 10:14 PM

#1

davidaz

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5th Wheeling

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Compression test

1999 6.8 v10 280,000 miles what would be fairly good compression test psi on cylinders what numbers should I be looking for I know for sure they is coolant in #1 cylinder. Thank you for any feedback.

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Old

Feb 13, 2025 | 10:10 PM

#2

CathedralCub

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If there's coolant in a cylinder, I wouldn't do any compression testing until you've repaired it.

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Old

Feb 14, 2025 | 05:49 AM

#3

charlie g

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From: sussex county, nj

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i wouldn't even be driving it nor cranking it over , out of fear of hydro locking the motor, bending a con rod

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Old

Feb 14, 2025 | 07:32 PM

#4

davidaz

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Ok thank you I agree. I will start to work on pulling the heads and determine the why did this happen.

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