Mechanics

JIMMY S-15

1991 GMC S15 • 6 cylinder 4WD Manual • 149,000 miles

What would cause my truck to idle roughly when I am at a stop light or stop sign and to stumble during acceleration? I have replaced the tps, egr, iac, wires plugs, rotor and cap, fuel pump, and filter.


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Martinrosasjr
January 24, 2011.



Spray around the tbi unit at the bottom. If your rplm's change the gasket is leaking and needs tobe changed.

Hmac300
Feb 1, 2011.