Question about 2004 Pontiac Montana
Car stays running taking battery lead off . Are there any relays/switches that I am missing here. Have new ignition module to try for s and giggles.
First, you can't and shouldn't test an alternator by disconnecting the battery cable while the engine is running. You run the risk of cooking the alternator and the computer. Thats how we used to test generators back in the last century.
Is the check engine light on when the engine is running ? Is the battery charge warning light on ?
There should be a fuseable link between the alternator and the battery that could keep the alternator from charging the battery.
The ignition module would have no effect on the charging system.
Posted on Aug 07, 2012
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
You dont need a computer. You need a new Body Control Module. Located under the center console but forward towards the dash. A very common problem with these cars. NOT A USED ONE....A NEW ONE. They are VIN specific.
Posted on Jul 22, 2011
Tips for a great answer:
Sep 27, 2016 | 2004 Pontiac Montana
Nov 05, 2013 | 2004 Chevrolet Impala
Feb 22, 2013 | 2000 Pontiac Montana
Oct 08, 2012 | 2004 Toyota Tundra
Jul 21, 2011 | 1999 Pontiac Montana
Feb 18, 2011 | 2004 Chrysler 300M
Jan 25, 2011 | 2000 Pontiac Grand Prix
Aug 08, 2010 | 1984 Oldsmobile Cutlass
Jul 12, 2009 | 1995 Chevrolet Caprice
May 26, 2009 | 1999 Pontiac Montana
728 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: