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

Tiny
GOODCOL88
  • MEMBER
  • 1991 CHEVROLET LUMINA
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?
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Saturday, July 3rd, 2010 AT 3:04 PM

1 Reply

Tiny
RASMATAZ
  • 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
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Saturday, July 3rd, 2010 AT 8:32 PM

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