Hi maintmechanic, Welcome to 2carpros and TY for the donation
Do you have a check engine light and when was the last tune-up?
Jerking/surging/hesitating could be caused by one of the following
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Manifold absolute pressure sensor.
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.
Note:If it doesn't apply disregard i
Thursday, July 15th, 2010 AT 2:09 AM