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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 09-13-2009, 07:53 PM
tw4jw tw4jw is offline
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'90 Olds CS stops firing at running temp

Car just dies at running temp with no further fire until it cools down. Replaced the crank shaft sensor back in February and it had been running fine until a week ago. ICM tests are good. Coil packs have remained cool when it has died. Plenty of pressure in the fuel filter. At a loss here. Can anyone help?
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Old 09-13-2009, 09:01 PM
maxwedge maxwedge is offline
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Re: '90 Olds CS stops firing at running temp

Do you have spark when it won't start? proper fuel pressure? Post the engine also.
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Old 09-14-2009, 10:03 AM
tw4jw tw4jw is offline
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Re: '90 Olds CS stops firing at running temp

It's a 3.1L V6. Guess that does help. There's no further fire when I try to turn it back over until it cools down. Could I have a false read on the ICM test because it was cold when it was tested?
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Old 09-14-2009, 12:22 PM
maxwedge maxwedge is offline
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Re: '90 Olds CS stops firing at running temp

Yes, this is an atypical icm failure as well as the cps.
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