catilac converter

1993 PONTIAC FIREBIRD
140,000,000 MILES • 2WD • AUTOMATIC
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SNAVLEYCOLTIN
  • MEMBER
  • 1 POST
my 1993 firebird wont accel over 35 to 40 mph what could it be because of??...i bought it off a friend they last said it would just boggg down at like 40 after it has ben warmed up... a mechanic said that it was the caltilac converter...it is supposly plugged... is that even close???
Feb 10, 2011 at 6:41 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Do you have a check engine light on?

Lack of acceleration,chugging,hesitating********,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.
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 17, 2011 at 5:13 PM
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