1994 Chevy Suburban V8 Two Wheel Drive Automatic
vehicle idles rough and hesitates while driving
we replaced the spark plugs, wires, distributer cap and rotor, TPS sensor and other sensors, set the timing for 18 degrees tdc to 4 degrees tdc using alldata instructions for this vehicle. Test drove vehicle and it seemed fine while at low speeds then when trying to cross an intersection and accelerating it began to hesitate and run rough once again. Got the vehicle home and re checked the timing and it was off again to 16 degrees tdc. Tried to reset the timing using alldata instructions again and timing immediately jumped again.
have the same problem?
Wednesday, August 18th, 2010 AT 11:01 AM