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Hesitation

Tiny
WAGSDAW
  • MEMBER
  • 1993 CHEVROLET TRUCK
  • V8
  • 4WD
  • AUTOMATIC
  • 179,000 MILES
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
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Saturday, March 12th, 2011 AT 2:50 AM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 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.
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Saturday, March 12th, 2011 AT 3:00 AM

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