09-20-2009, 10:09 PM
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#1 |
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Registered User
Join Date: Jul 2009
Posts: 62
Location: User is: OffLine |
4.3 Compression
Anyone that has checked the compression on their 4.3(preferrably 1996+), I would really appreciate knowing what the correct compression is supposed to be.
I have looked several places on the internet and even in official repair manuals and all I can find is that they are supposed to be close to each other. I simply wanna know average psi numbers of a good 4.3. Thanks. |
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10-26-2009, 02:44 AM
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#2 |
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Registered User
Join Date: Oct 2009
Posts: 14
Location: Sacramento, CA User is: OffLine |
Re: 4.3 Compression
I recently did a test on my 91 4.3l v6 and it read 180psi on all 6 but I'm having trouble so my results may not be typical.
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10-26-2009, 11:51 AM
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#3 |
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Registered User
Age: 38
Join Date: Dec 2007
Posts: 28
Location: Queen Creek, AZ User is: OffLine |
Re: 4.3 Compression
I just did a compression test on my "X" VIN code '98 4.3 with 160k miles. The highest cylinder reading was 190, the lowest was 180 and the rest fell in between.
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10-26-2009, 10:30 PM
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#4 |
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Wire Splicin Fool :-)
Age: 30
Join Date: May 2008
Posts: 5,064
Location: Harrisonville, MO User is: OffLine |
Re: 4.3 Compression
Above 100 PSI is ok, the higher the better IIRC.
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