Mechanics

350 MOTOR RUNS ROUGH

1935 GMC Other

I have a 1989 gmc pickup with a 350 and tbi carb. The motor runs good at an idle but runs rough when the throttle is pressed. Coudl you please help me?
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Derfmier
March 11, 2007.



You could have a number of different things causing this problem. Bad plug wires, bad plugs, bad rotor, cracked cap, timing off. Those are just a few things you need to check.

Tiny
Mickey-d
Jan 7, 2010.