is the voltage regulator in the alternator or in the computer? i have a 99 if that makes any difference

 

Computer, what is your issue?

 

its having low voltage, i have a new battery and my alternator is faairley new, so i fugured is was my voltage regulator, i got it tested and it was and the guy tried to tell me it was im my alternator but i thoutht it was in the computer

 

Start simple, check the output on you Alt. What is it?

 

pretty low i cant remember what is was, all i wanna know is the regulator external, or internal in the alternator?

 

Its in the PCM.

 

so would i need a new PCM?

 

It depends on how much you want to troubleshoot. Check all of your grounds and run it and do a "wiggle" test.

 

Do you have under drive pulleys?

 

Have you actually tested voltage off/ and with the engine running at the battery? If you are going just by the gauge inside, DONT

 

no i got it tested

 

what does underdrive puleys mean?

 

tested? That doesn't matter man. Metm is right do that.

 

check the field connections at the alt. they are the two small wires not the larg 10g one. if they are not good or have any corrosion
it can give you low volts

 

good luck. Let me know what you find.