350 motor runs rough

1935 GMC
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DERFMIER
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  • 1 POST
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?
Mar 11, 2007 at 11:22 PM
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MICKEY-D
  • ✓ASE Certified Mechanic
  • 304 POSTS
  • ASE Certified Mechanic
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.
Jan 7, 2010 at 11:22 PM
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