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P0302 Engine Code
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09-04-2012, 09:23 PM
HUMTECH
Hummer Authority
Join Date: Sep 2003
Location: Canada
Posts: 1,251
Re: P0302 Engine Code
Low compression, sunk valve seat, carbon build up on valves, excessive leak down in that cylinder, weak lifter
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1987 Jeep YJ 403hp sbc 653hp on NOS
1998 Chev Z71
2007 Chev Trailblazer SS
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