Mechanics

CHEVY RUNNING ROUGH

1989 Chevrolet Corsica

Engine Performance problem
1989 Chevy Corsica 4 cyl Front Wheel Drive Automatic 140000 miles

have changed plugs, wires, temp sensor, car runs extremely rough and has hardly any power, someone suggested o2 sensor. Wouldnt start at all at first died while driving changed temp sensor starts but like I said runs extremely rough and has hardly any power any suggestions
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Jeffreyandsandi
July 23, 2010.




Engine running rough or misfiring can be cause by the following: 1. Defective spark plug
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
10. Throttle position sensor.
11. Idle air control valve.

Rasmataz
Jul 23, 2010.


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