1989 Plymouth Horizon Hesitation when first increasing gas pedal. Happens at all speeds all rpms, Hesitation and a little bit of vibration, once I give it more gas it is fine. 35k miles, just put on new water pump, timing belt, cap, rotor, plugs, wires, fuel filter, air filter, belts, checked pcv valve, gas is new. Does it on multiple tanks. Tranny is fine had it adjusted months ago. Has power. Also idels little rough. Had 2 garages adjust timing. I do notice carbon buildup on the part of wires that is in the distributor, so I cleaned them up and put white grease on them. Ran a little better but I think once the carbon built up again it goes back to same problem. Ran fuel injector cleaner multiple times, nothing. Plenty of power on high revs so not a clogged cat. Any suggestions? Thanks! Thing is in Mint Condition.
Tuesday, July 19th, 2011 AT 12:24 AM