Hi there and welcome to 2carpros.
Use a voltmeter read the battery voltage before you start it up-Now fire it up load the system by turning On the headlights and heater. *** Record the readings, if its reading the same as before you start it-now take a jumper wire hook it up to the F terminal then to the rear housing. If the readings are much higher the regulator is defective-if not the alternator is bad.
What you doing with the jumper wire is bypassing the regulator called full fielding and making the alternator throw out everything its got.
Holler if you need more assistance/Have a nice holidays
Thursday, December 6th, 2007 AT 4:24 PM