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Did a compression test - How's it look?

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Did a compression test - How's it look?

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Old

Oct 29, 2014 | 07:22 PM

#1

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From: Indiana

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Did a compression test - How's it look?

Have a 2006 Pontiac GTO LS2 6.0 Motor.

We did a compression test today.

Here are my numbers, tell me what you guys think. The car is completely stock with 74,000 miles.

I'm going to post the first crank and last crank, we let it crank 5 times.
1st crank is in parenthesis.

#1 (30) 150
#2 (40) 148
#3 (40) 155
#4 (40) 150
#5 (30) 152
#6 (40) 150
#7 (35) 148
#8 (35) 150

Also, you guys know of a way to test if there is any clogging of the catalytic converters?

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Oct 29, 2014 | 08:32 PM

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From: Indianapolis

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I'll add that prior to doing the test we seafoamed the car and engine was cooled down as well.

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Nov 7, 2014 | 07:53 PM

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From: San Francisco, CA

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That's about as even as it gets..... run it. If it was cold then the numbers are lower than if it was warmed up.

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