Age and mileage come to mind. Do this, perform compression test write down each cylinder, now shoot a little oil in the cylinder do another compression test. Did the compression come up? If no probable bad vavles, if yes probable piston rings. I hope this helps you
What could be wrong with my 2000 Chevy S10 4.3 engine when it looses engine compression.
2000 Chevrolet S-10
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Maintenance & Repair
Got fire, injectors spraying fuel, got good compression 1993 Chevy S-10 4.3 engine. Still will not fire up, new battery, 650, cold cranking amps. Drove approx. 10 miles to do shopping r...
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Maintenance & Repair
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Maintenance & Repair
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Maintenance & Repair
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Maintenance & Repair
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