problem with gear shifting, car won't go faster than 20mph

1996 CHEVROLET ASTRO
85,569 MILES • 6 CYL • 4WD • AUTOMATIC
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TEECEE510
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  • 1 POST
Car will not exceed the speed of 20mph. Seems like gear is not changing into the next gear.
Jan 20, 2011 at 12:32 AM
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RASMATAZ
  • CERTIFIED EXPERT
  • 75,992 POSTS
If it's not slipping could be one of the following items:


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.
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 and keep testing.
Mar 27, 2011 at 5:45 AM
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CHEVYGIRL2011
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  • 5 POSTS
change transmission filter
May 26, 2011 at 1:51 PM
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