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Disconnect the battery. Remove the ignition coils. Remove the ignition control module that was under the coils, and replace it.
it could be the control module
check the ignition control module.
http://www.therangerstation.com/tech_library/TFI_Diagnostic.html Heat
Remove the wiring harness from your 1995 Chevy Blazer ignition control module. Remove the ignition control module retaining screws. Reverse the process to install your new ignition control module.
You can find the Ford Focus ignition control module beneath the drivers side dashboard. The ignition control module will be above the accelerator pedal.
I would replace the ignition control module that's in the distributor.
Where is the ignition control module located in my 1992 Crown Victoria
The ignition control module sit directly below the distributor.
ignition control module is under the distributor cap
Where is ignition control module on a 2001 mercury sable
The 1990 Chevy Celebrity engine is distributorless, the ignition is handled by a combination of the engine control module(computer) and the ignition control module. You did not mention which engine the car has. If your car has the 4 cylinder engine the ignition control module is below the intake manifold at the rear of the engine. You can follow the spark plug wires to it. The coils are mounted to the ignition control module. If your car has the V6 the ignition control module is near the starter and again you can follow the spark plug wires to it. Again the coils are mounted to the ignition control module.