Posted April 21, 201015 yr I have been having problems with my serpentine belt or alternator. It was slipping on startup, and when i accelerate my voltage drops to about 12. i tightened the belt and the squealing went away, but the voltage still drops to 12. it stays at 12 until i start crusing. I had a gu ytell me i needed the oem belt because 1996 isuzu rodes have a terrible belt design. My dilema is that im about to instal my system, but im not sure if it is just the belt, or is my alternator bad? Also if someone could tell me how to test my alternator that would be great. i have a dmm if it requires one. thanks!
April 21, 201015 yr Author o yea i completely forgot about that! im heading there now so ill report back if its the alternator or not.
April 21, 201015 yr Author ok i checked it and the alt is fine. so apparently its my belt? Is it possible that it's glazed over and slipping when i accelerate? i dont really want to buy a new belt if its something else.
April 22, 201015 yr Is it an oem alt or high output?I believe its OEM.How old is the belt to start with?
April 22, 201015 yr Author im not sure on how old it is, i just got the car a month ago. i did some research and i think its just glazed over from all the heat it went through from slipping at startup. i went ahead and bought a belt, but i wont be able to swap it until tonight or tomorrow. And yes it is a stock alt. Edited April 22, 201015 yr by mwerling1212
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