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Vans & Minivans Pontiac Montana Pontiac Montana Electrical Issues
116 messages, Last post on Oct 02, 2009 at 6:00 PM
You are in the Pontiac Montana Forum. Your Host is Karens
My father's vehicle was doing some really strange things a couple weeks ago... 2007 GM... turned out to be his ignition was shorting and causing a wrath of dash lights, no auto locks and unable to start the vehicle now and again. Hope I didn't lead you on a wild goose chase regarding the rear tail lights... that is something that many were mentioning as a cause of many electrical problems. Based on your description it is a short somewhere... curious if you took it to the dealership.. they have many more tools/experience to diagnose components - these are types of problems that are likely very memorable when troubleshooting... what I don't like is the price tag of $125 and hour. Good luck, sorry I can't help further.
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Replying to: kennie (Apr 27, 2009 9:19 am) Thanks for all your help... the mechanic is going to check the wires from the computer today and if that fails I am going to bring her into the pontiac dealership and see if hooking it up to the scanner can show anything.....It could very well be the ignition because thats what the problem started with (the passenger window) and then the key chime.... I will let you know what they find so hopefully if anyone else has the same problem in the future they know what to do....on a positive note I know there is nothing wrong with the wiring harness...lol... ONce again, thanks again for your help...... Zel |
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| I'm no automechanic but a few extra grey matter cells sometimes helps... good luck ! | |
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Replying to: jhirneisen (Mar 15, 2009 10:37 am) I had the exact same symptoms as everyone else with what looked like a wiring problem. Speedo and Tach erratic, shifting problems, no engine power, driver information warnings. Checked out the Tail Light wiring...All like brand new! Problem turned out to be a bad regulator in the alternator. Instead of NOT charging, the system was driving battery voltage past 21 volts causing systems to shut down to to over voltage. Easy check for this is to monitor the battery voltage while revving up the engine. Voltage should NOT exceed 16 volts. Mine was 19 volts at idle and went up from there with engine RPM. Replaced alternator and all systems now work perfectly! Don't get yourselves off on a wild goose chase! Just an FYI... Ken |
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Replying to: jhirneisen (Apr 06, 2009 9:30 am) I see from your post that you've had power window problems. Both front windows on our 99 Montana no longer operate. The dealer quoted us over $300/window to have the motor replaced--that's w/o even looking into it. How did you repair yours? I see that you can buy window motors on A1 Auto.com. What would you recommend. Is it necessarily the motor? Thanks for your help! Susan
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Replying to: goody91 (May 06, 2009 11:20 am) If you take it apart yourself, do some electrical testing to see if it's the motor or the switch. Good luck. Jack |
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Replying to: goody91 (May 06, 2009 11:20 am) My problems are all intermittent - seems that everything is working better than ever now for the last 3 weeks or so... tested the battery but all seems to be fine..the only thing that won;t work is the power window on the passenger side and that I am not too worried about... everything else seemed to start working after I noticed that the rear tail light had burnt out and I removed the bulb and then things started working again - so I have yet to replace the bulb,,,lol...afraid that it will stop working again.. its a wait and see process - gonna wait until everything decides to stop working again and then I am gonna test the battery again because someone mentioned that maybe its a bad regulator in the alternator... as for now I am gonna keep my fingers crossed that everything keeps working. |
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| I'm on my third battery in 3 months....Sears Die-hards, usually very good batteries. They will not hold a charge over night and I have to jump it off every morning. A guy who replaced my windshield this morning said he had the same car, it's a ground wire problem? I can't seem to find any loose wires, suggestions? 2002 Montana, thanks for any advice. | |
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Hi, I have a 2000 Montana and when I had purchased this van (used) the rear quarter windows was working until I must have held the open/close button on the overhead console for too long. Since then nothing. I checked the switch carefully and the fuses and all checks out. Does anybody know what else i can check??
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Replying to: 4pontiacs (May 22, 2009 7:17 pm) 1. The windows can stick open because the little motors attached to each window go too far and get stuck. You will need to unscrew the window from the motor or control arm, then apply current to the motor...hopefully the motor will reverse itself. NEVER open the window all the way....it's another design flaw on this vehicle! 2. Windows can refuse to open.....the window is stuck to the rubber molding. Detach the motor and arm from the window, smack the window from the inside with your hand, it should pop open, clean the window and rubber molding with warm water and a drop of liquid dishwashing soap, apply a light coat of silicon window molding spray to the rubber molding, reinstall motor and arm. Jack |
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