2003 Pontiac Montana Repair Question
Pontiac Montana Alternator Problem
Did you have the old alternator tested as bad?Also do you have a multimeter to do some testing?
they said it was bad. do not have multimeter
You need a multi meter so we can trouble shoot the problem.
now have multimeter
Lets start with the engine idling what is the voltage reading at the battery?
Alright your not charging there is a red wire going to terminal B+ the one with a nut on there should be battery voltage there at the alternator.Also the orange wire to the D terminal at the alternator should have battery voltage.Let me know what you find?