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Pontiac Montana Electrical Issues

116 messages,  Last post on Oct 02, 2009 at 6:00 PM

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What is this discussion about? Pontiac Montana, Pontiac Montana SV6, Van


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#51 of 116
Re: Pontiac Montana Wiper runs only on high [kwoodman] by alexm99
Apr 12, 2008 (4:52 am)
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Replying to: kwoodman (Mar 15, 2008 1:10 pm)

same here , i have a 2003 and the numb#3 on my fan doesnt work and now we are having wiper issues... that's a big coincidence if you ask me.. and of course GM doesnt know whats going on but they don't hesitate in wasting my time and money
#52 of 116
2003 Montana Electrical issues by jdipietro
Apr 15, 2008 (6:41 am)
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Two problems:
The passenger side seat heater does not work
 
the passenger side UNLOCK doesnt work.. you can Lock, but the switch doesnt work to Unlock..
 
All fuses look good, any thoughts??
#53 of 116
Re: Pontiac Montana Wiper runs only on high [alexm99] by brett13
Apr 16, 2008 (1:46 pm)
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Replying to: alexm99 (Apr 12, 2008 4:52 am)

I have a 2000, and I just changed the oil! Warning light comes on saying time to change the oil?? I have over 2500 miles left on the oil change. Any ideas anyone? Also , I hear this happens alot with Montana, the gas sensor is broke. My needle shows full tank all the time! I heard eight hundred dollars to fix, so I will keep it full for now! If this has happened to anyone else, or you have any ideas on what I should do , please respond back. Thank you!!
#54 of 116
1999 Montana Electrical Problem by losmorans
Jun 15, 2008 (9:37 am)
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I doubt anyone is surprised by the title. Actually, my Montana has been incredible trouble free over the past nine years/70K miles. Yesterday the turn signals and backup light (driver's side) started acting up. The driver's side back up light is working but a lot dimmer than the passenger side. When I put the vehicle in reverse both green arrow turn signal indicators come one. The turn signals and emergency flashers work but the left turn signal hyper-flashes if I press the brake when it is engaged. I have replaced every brake, turn, backup, and license plate lamp/bulb in the front and rear. There is no visible damage to the wires/connectors. In addition, and perhaps coincidently, the ABS and TCS lights started coming on randomly on the same day. They clear with an engine restart. I checked the fluid levels and all ok. Any suggestions on either of these problems other than selling it?
 
Thanks - Dave
#55 of 116
Wipers aargh ! by rogerhunt
Jun 16, 2008 (11:47 am)
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They front wipers on my Montana 2001 are currently parked in the vertcial position, been this way for over a week. Is this a do it yourself fix - anyone fixed this problem have advice - as it seems common ?
 
Edit : I did another site search - and it looks like I may have to replace a relay board... will see if my mechanic will do this for me.
#56 of 116
Re: 1999 Montana Electrical Problem [losmorans] by jhirneisen
Jun 16, 2008 (3:57 pm)
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Replying to: losmorans (Jun 15, 2008 9:37 am)

Dave,
No surprise at all! Common problem which has been discussed several times on this site.
Basically.....tail light(s) plugs (Pig Tails) were sub-standard and cannot stand the heat of the bulbs. Pull out hear tail light fixtures, remove bulbs from recepticals and check for melting plastic, usually between the black wire (hot wire) and one or more colored wires. If so, cut out old Pig Tail, get a replacement Pig Tail, soder it in (I think about 6 wires), and use electrical shrink wrap around sodered joint, install new bulbs using Di-electric grease in the socket. Test before reinstalling light fixture.
Jack
#57 of 116
Re: 1999 Montana Electrical Problem [jhirneisen] by jhirneisen
Jun 16, 2008 (3:59 pm)
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Replying to: jhirneisen (Jun 16, 2008 3:57 pm)

Dave,
I forgot to mention.......................the plug short can cause electrical feedback...might show up as turn signal lights, ABS, Air-bag, and TCS errors!
Jack
#58 of 116
Re: montana turn signals [jhirneisen] by finnecj
Jun 19, 2008 (5:48 pm)
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Replying to: jhirneisen (Apr 15, 2007 8:21 pm)

Many thanks to Jack. I was having phantom electrical problems with my 2000 Montana and finally the rear stop lights quit working all together. Googling the problem led me to this forum and with your advice, I solved the problems by replacing the pigtails and the circuit boards. A little pricey on parts but the labor wasn't difficult and now the turn signals and stop lights work great. Thanks again.
Charlie
Alabama
#59 of 116
Power Loss by baileyjm
Jun 22, 2008 (6:01 pm)
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I have a 2000 Montana and had the head gaskets replaced. Since I got it back, once I drive it for a while, it starts to lose power and not want to shift. I noticed all the tranny problems that had been posted and replaced it, but that's not the answer. Also replaced all coil, ignition module, plugs, wires, TP sensor, and computer. Any input or advice will greatly be appreciated.
#60 of 116
Frustrated by talus1
Jul 01, 2008 (7:04 pm)
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Any help or suggestions would be appreciated. I have intermitent issues with electrical. There are times when I start my car that none of the dashboard works or the radio does not work. The Service Engine Soon light will come on and when I take it to the repair shop they cannot find anything wrong. There have been times when I drive down the road that the lights, dashboard and headlight, will fade in and out as if someone is controlling a dimmer switch. Even the dealer ships when they do a diagnostic cannot find what is wrong. However they are willing to trouble shoot the problem with no guarantee for a fix that could cost me several hundred dollars, not to mention they want my car for 7-10 days. If anyone has had this problem, the solution you arrived at would be greatly appreciated.

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