i have a 1997 f150 4.2 liter. and one day the heater kept running afteri shut it off unless i put the heater into the off position, now it tries to start when the truck is running.

Asked by Nov 22, 2015 at 01:36 AM about the 1997 Ford F-150

Question type: Maintenance & Repair

3 Answers

65,785

Blower motor is run threw a blower motor resistor that can cause this, may be bad.

I meant the truck tries to start

17,930

If you mean the starter engages after the engine is running, then power is being supplied to the solenoid when it should not. Begin by checking the relay, then backward.

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