only 3 of the four cylinders are working?

1993 PONTIAC SUNBIRD
65,000 MILES • 4 CYL • FWD • AUTOMATIC
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1993 Pontiac Sunbird 2.0l mileage: 65,000. My car has been driving with only 3 cylinders working. I checked the spark plugs and the wires. They are OK. What is the next thing to check? I thought of the module, but was told that it would not start if it were that. Is this true? Could it than be the coil?
Oct 19, 2010 at 11:22 PM
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The ignition module and coil cannot be causing your problem. Some things to check would be the compression, the injectors for each cylinder and scope the engine.
Oct 19, 2010 at 11:23 PM