1994 ford f-150 5.0l cranks an runs but when you pull the headlight switch on it kills all poer to the motor

Asked by Feb 26, 2017 at 11:17 PM about the 1994 Ford F-150 XLT SB

Question type: Maintenance & Repair

engine dies when you pull the headlight switch on

4 Answers

10

You have to check the alternator out put to the battery. Needs to be 14.5v if below that the alternator needs to be replaced.

1 people found this helpful.

Alternator is puthing out enough volts has it check 114.6 v

10

114.6?

I had the alternator checked out its putting out 14.6

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