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Cutlass Series Includes Cutlass Ciera, Cutlass Cruiser, Cutlass Calais, Cutlass Supreme, Custom Cruiser, as well as the GM N-Body subforums.
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Old 12-11-2005, 01:04 PM
simmonsez simmonsez is offline
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90 Cutlass Supreme 6 cyl lost fire

I have a 1990 Cutlass Supreme 6 cyl I bought for my son. The other day it lost all fire from the 3 coils to the plugs. One coil is new so I know thats not the problem. Any suggestions on what to check would be appreciated.
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Old 12-11-2005, 03:12 PM
maxwedge maxwedge is offline
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Re: 90 Cutlass Supreme 6 cyl lost fire

Get a scanner and see if you have cranking rpms, if not the crank sensor is most likely the culprit, or possibly the ign conrol module under the coils. Crank sensor can be a difficult job, and so is the ign module!
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Old 12-11-2005, 06:46 PM
simmonsez simmonsez is offline
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Thanks for the reply, Do I need a dealer to perform the scan? I think I can have the ignition module checked to verify if it good or not.There is not much room to work, so difficult I assume means hard to get to?
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