1989 GMC C1500 Truck Stutters while driving

1989 GMC C1500
215,000 MILES • V8 • 4WD • AUTOMATIC
Avatar
MATT.SHEIK
  • MEMBER
  • 1 POST
When I am driving and let off the gas pedal then start pressing back down on gas pedal the truck will kind of stutter. If I press down on the gas harder it will downshift and blow right thru that stuttering. New cap and rotor, plug wires, don't know on plugs. Truck runs great other than this.

Thanks
Dec 22, 2009 at 6:13 PM
Advertisement
Avatar
MARADAMX3
  • MEMBER
  • 6 POSTS
Was there any resolution to this problem? I have a similar issue. I have a standard 1989 GMC with a 350 and it spits and sputters on acceleration but runs smooth at constant speed or throttle settings. I've changed the plugs, fuel filter and added fuel conditioner. What is the fix?
Thank you in advance!
Jan 18, 2010 at 9:41 AM