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2003 Pontiac Montana Repair Question


Topics covered: Alternator, Battery, Terminal.
Mileage: 111,111 miles.

Asked on December 5, 2012

Pontiac Montana Alternator Problem

Put new alternator on and it still wont charge. drains new battery.
Avatar Asked by (pending member)

Answer

Replied on December 5, 2012

Did you have the old alternator tested as bad?Also do you have a multimeter to do some testing?

Tiny Answered by saturntech9 (expert)
23,190 answers provided
Replied on December 5, 2012

they said it was bad. do not have multimeter

Tiny Answered by continentals
1 question asked
Replied on December 6, 2012

You need a multi meter so we can trouble shoot the problem.

Tiny Answered by saturntech9 (expert)
23,190 answers provided

Replied on December 8, 2012

now have multimeter

Tiny Answered by continentals
1 question asked
Replied on December 9, 2012

Lets start with the engine idling what is the voltage reading at the battery?

Tiny Answered by saturntech9 (expert)
23,190 answers provided
Replied on December 9, 2012

11.90

Tiny Answered by continentals
1 question asked

Replied on December 9, 2012

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?

Tiny Answered by saturntech9 (expert)
23,190 answers provided