1991 Chevy Cheyenne

SKOOTER2010

MEMBER
1991 CHEVROLET CHEYENNE
6 CYL
2WD
AUTOMATIC
95,671 MILES

I haven't even had the truck for 2 weeks yet. I had just recently bought the truck, and gave it new plugs, wires, and oil, but the Distributor cap and rotor had been replaced before but not the plugs and wires. Now my truck idles high then low, high then low. I have to constantly give it gas or the engine will die out. Any strain on the engine will cause it to die out, like the air conditioner. When going down the road it has no throttle response at all. Like the truck has no power. You literally have to put the gas pedal down to the floor just to get up to around 40mph. Just revently replaced the EGR, distributor, and rotor button. Any suggestions?

Friday, July 30th, 2010 AT 9:00 PM

1 Reply

RASMATAZ

MECHANIC
75,992 POSTS

Lack of acceleration, chugging, hesitating, bogging 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.

Was this

answer

helpful?

Yes

No

Friday, July 30th, 2010 AT 9:11 PM