1995 GMC Sierra won't speed up

Tiny
ALF_744
  • MEMBER
  • 1995 GMC SIERRA
Engine Performance problem
1995 GMC Sierra V8 Four Wheel Drive Automatic

My vehicle won't speed up, after it gets to 50kms it won't go any fast than that.
Monday, November 8th, 2010 AT 4:51 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Lack of acceleration, chugging, hesitating, jerking, bogging, misfiring etc. Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
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 it
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Monday, November 8th, 2010 AT 9:26 PM

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