2004 Chevrolet Astro Repair Question
Asked on June 6, 2011
Jerking or Lurking
I have a 2004 chevy trailblazer and when i have the airconditioning on sometimes on or off it acts like it is bucking or******** forward and backward a little. no trouble codes have come up yet.
Asked by rthorn78Answer
Replied on August 6, 2011
Could be one of the following below -check and test:
Oxygen sensors.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
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.
