1991 Chevy Lumina '91 chevy lumina wont go over 20 mph

1991 CHEVROLET LUMINA
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GOODCOL88
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  • 1 POST
1991 Chevy Lumina 6 cyl Automatic

I have a '91 chevy lumina 3.1 6 cylinder and it worked fine until 2 weeks ago when i was told by a mechanic that i had a cracked head gasket and i needed to replace it along with the transmission fluid because the dipstick showed i had way too much tranny fluid in my car . Ever since then, my car has been having trouble and now it wont even go above 20 mph. What seems to be the problem?
Jul 3, 2010 at 8:04 AM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Possibilities: Inspect and test all the following listed below:

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position 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
Jul 3, 2010 at 1:32 PM
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