The lowest reading cylinder should not be less than 70% of the highest and no cylinder reading should be less than 689 kPa (100 psi). Perform compression test with engine at normal operating temperature, spark plugs removed and throttle wide open.
A 1995 S10 with the 4.3 L TBI requires 41 to 47 psi fuel pressure.
Check spark plugs and wires Do a compression test
91 S10 4.3 L engine requires 41 to 47 psi fuel pressure.
Hot at idle, 20-30 psi.
Have a fuel pressure test done. A 4.3L should have 60 to 66 psi, a 2.2L should have 41 to 47 psi.
60 to 66 psi with engine off, fuel pump running.
the 4.3L engine requires 60 to 66 psi fuel pressure, the 2.2L engine requires 41 to 47 psi.
more that 100 PSI the lowest must be no more that 70 percent of the highest reading
On the Vortec the computer does it all.
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The payload for the 1985 Chevy S10 pickup is between 1000 and 1500 pounds depending on the exact model. The S10 is the smallest of the Chevrolet pickup series.