2004 Jeep Wrangler What a good average cylinder PSI

2004 JEEP WRANGLER
68,000 MILES • 6 CYL • 4WD • AUTOMATIC
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SEGUY01
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I had my compression checked at 2 different shops. One shop ran 190 +/- 5 on all 6 cylinders. I guess im wondering if that is high and would that be a valid reading.

The other shop got 170 on 4 and 120,150 on the others.

I tend to believe the second shop was incorrect as the first shop actually showed me the guage with they did, it.

I guess just looking for peace of mind? any thoughts.

thanks
Jan 28, 2009 at 9:11 PM
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BLUELIGHTNIN6
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Each cylinder should be within 25% of each other. Compression should be between 100 and 200. Your engine is fine.



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Jan 29, 2009 at 12:45 AM