1995 Chevy Corsica Stalls Over 50 MPH

GMC
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CHRIS4600
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  • 1 POST
I have a 95 chevy corsica with 175,000 miles on it. At first we were not having any running problems at all. Now, once we hit 50 miles an hour, the car acts like it is stalling and will not go any faster. I checked the spark plugs and wires and the plugs are working properely. I checked the coil pack on the number 3 and 6 cylinder. When I pull the plug wire off the coil pack, nothing happens with these 2. When I check the other one's, the car almost dies. I changed the coil pack and still have the same problem. Can you give me any ideas? Someone told me it sounded like a failing injector. Could this be a possibility? If so where are the injectors located?
Apr 25, 2006 at 4:03 AM
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LOSONE
  • ✓Experienced Mechanic
  • 1,616 POSTS
I need a little better explaination fo the problem with the coil packs. Injectors have nothing to do with spark. The spark is generated by a module that in under the coil packs. I suggest you replace that and it will run fine. It is a medium failure item at about 100K so yu have been running on borrowed time. Good luck
Apr 25, 2006 at 4:25 AM

Suggested Repair

Replace the ignition control module located under the coil packs. The expert said injectors do not affect spark and that this module commonly fails around 100,000 miles.

Conversation Summary

A 1995 Chevy Corsica with 175,000 miles runs normally until about 50 mph, then acts like it is stalling and will not accelerate further. The owner checked the plugs and wires, found no response when disconnecting the coil-pack wires for cylinders 3 and 6, and replaced the coil pack without improvement. An expert said a failing injector would not affect spark and recommended replacing the ignition module under the coil packs.

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