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Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!

1993 F150 - 4.9 - 5Spd

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3 years 9 months ago #53646 by TANKER
1993 F150 - 4.9 - 5Spd was created by TANKER
Truck will start fine but will not remain running when ignition switch is returned to key on. It dies immediately. Switch is not the problem.

I can start the truck and remove the ICM wire from solenoid and it idles / runs just fine in KO. If I reconnect the ICM start wire to solenoid it dies immediately.

So something is going on between ICM start and ICM PWR. Installed new ICM and same thing.

Any ideas what / how to troubleshoot from here?

Thanks.

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