low voltage problem
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Senior User
Joined: Aug 2006
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low voltage problem
I installed 2 elec. fans in my truck and underdrive pulleys 75amp alternator the truck is a 1988 f150 w/302 carb setup what can i do to bring the voltage back up. Its fine in the day but when I have the headlights on it really goes down
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Joined: Jan 2001
Posts: 57,012
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From: Virginia
What is the voltage at the battery when you have everything on? Read this with a voltmeter at the battery terminals. Read it also at idle and then rev the engine up. Write in what the numbers are.
Did this all start when you added the fans?
Did this all start when you added the fans?
