350 motor runs rough

Tiny
DERFMIER
  • MEMBER
  • 1935 GMC
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?
Sunday, March 11th, 2007 AT 11:22 PM

1 Reply

Tiny
MICKEY-D
  • MECHANIC
  • 304 POSTS
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.
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Thursday, January 7th, 2010 AT 11:22 PM

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