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.

James Westerlund

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

Question type: Maintenance & Repair

3 Answers


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

James Westerlund

I meant the truck tries to start


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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