hesitation

1993 CHEVROLET TRUCK
179,000 MILES • V8 • 4WD • AUTOMATIC
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WAGSDAW
  • MEMBER
  • 1 POST
hesitates or cuts out on take off below 1000 rpm cuts out at40mph after tcc kicks in rpm drop below 1000 has had a number of parts tried -both injectors,dist,plug-wires,tps,map sensor ,cap,rotor reman computer tried wouldnt shift right out of first also o2 sensor
Mar 12, 2011 at 2:50 AM
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RASMATAZ
  • CAR REPAIR CONTRIBUTOR
  • 75,992 POSTS
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.
Mar 12, 2011 at 3:00 AM
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