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Pontiac Montana Engine Problems

46 messages,  Last post on Oct 27, 2009 at 8:02 AM

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

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#17 of 46 Electrical I think by lisart Aug 23, 2007 (5:08 pm)
I have a 99 Montana, 159,000 miles on her. This morning I got in it to go to work and I had no electric. fiance jumped it and it worked fine for the rest of the day and now it's down again. He thinks its the alternator since its original I think its moisture. not sure where to start though. Replaced the battery last year, no issues with things being left on since they are all automatic. Replies to this message: beowulf58 (Aug 30, 2007 2:22 pm) lisart (Nov 04, 2008 7:53 am) honeydipper (Nov 11, 2008 3:45 pm)
#18 of 46 Re: Electrical I think [lisart] by beowulf58 Aug 30, 2007 (2:22 pm)
Replying to: lisart (Aug 23, 2007 5:08 pm) Ensure that all of your battery connections are tight. Even one loose one will cause problems like this as you're not getting a good connection. If you want to test your alternator, start the vehicle and then disconnect your battery. If it still runs, the alternator is good. If you have a volt meter at home, test the alternator and see how much voltage it's putting out. It should be around 13-14 volts or so. Replies to this message: lisart (Nov 04, 2008 7:53 am) honeydipper (Nov 11, 2008 3:45 pm)
#19 of 46 problem with montana overheating by katsmeow Mar 03, 2008 (3:12 pm)
ya i have a 2002 pontiac montana over heats idoling and in town going out of town it goes down to a good temp we have replaced water pump and thermastate twice and head gasgets flushed the radiater too now we need to figure out how too get to the heater core does anyone knows i would much appreciate it Kathy
#20 of 46 Montana Engine problems by jhirneisen Jun 29, 2008 (7:31 pm)
Replying to: beowulf58 (Jan 11, 2007 6:27 am) For all of you who have had problems with DEX COOL (including me) in Montana engines (and the other 2 GM sister mini-vans, and several other GM cars and trucks), there is a proposed CLASS ACTION SETTLEMENT. GM does not admit any problems, but it looks like they will have to reimburse effected owners. See this web-site: http://www.dexcoolsettlement.com/   Jack ....in Colorado Replies to this message: kimmer827 (Jun 30, 2008 7:20 pm) beowulf58 (Jun 30, 2008 7:53 pm)
#21 of 46 Re: Engine light [terry12247] by lisart Jun 30, 2008 (8:00 am)
Replying to: terry12247 (Jul 09, 2007 4:34 pm) if you still have this vehicle i would hope that by now you had the fuel filter checked cause that was my problem when it was sluggish as you describe. Replies to this message: beowulf58 (Jun 30, 2008 7:57 pm)
#22 of 46 Re: Montana Engine problems [jhirneisen] by kimmer827 Jun 30, 2008 (7:20 pm)
Replying to: jhirneisen (Jun 29, 2008 7:31 pm) Jack, thank you for this info. I am SO not a car person, and have no idea what I'm talking about, but here goes. We have had our 2003 Montana to the mechanic twice for the same problem. The bolt that holds the rocker arm down strips and the engine light comes on and the vehicle runs sort of shaky. Both times it happened, we took it to the mechanic immediately and he says it's defective parts. I called Pontiac Customer Service and they want me to take it to get it diagnosed (for $72/hour) at a local dealership. I called the dealership and it would take them about two hours to check it out, minimum. My husband and I decided not to pursue it because we thought they would say it wasn't their responsibility. Is this at all related to the DEX COOL issue? Thanks for posting what you already did, and I'll watch for your reply.   Kim.... PA
#23 of 46 Re: Montana Engine problems [jhirneisen] by beowulf58 Jun 30, 2008 (7:53 pm)
Replying to: jhirneisen (Jun 29, 2008 7:31 pm) I didn't know about this lawsuit. Unfortunately, I'm not a citizen of Missouri. If I was, I'd sign on to reclaim the $3000 I spent for an upper engine rebuild because of failed intake gaskets.
#24 of 46 Re: Engine light [lisart] by beowulf58 Jun 30, 2008 (7:57 pm)
Replying to: lisart (Jun 30, 2008 8:00 am) I haven't changed that in awhile but I guess that's not a bad idea. It's not running sluggish. I just have an "eternal engine light."
#25 of 46 Loud engine ticking upon startup, increases with acceleration by woolverton7 Jul 02, 2008 (10:54 am)
#26 of 46 Loud engine ticking upon startup, increases with acceleration by woolverton7 Jul 02, 2008 (10:54 am)
We have a 2000 Pontiac Montana. There has been a faint ticking sound under the hood for some time now that was hardly noticeable. There is oil in the van and we do keep up on the oil changes, however there is a slow oil leak as indicated by the spot in our driveway. The other night we drove the van and a security light came on which we had never seen before. The next day the van would not start. Out of the blue we had a dead battery but don't know why. We jump started the van and drove it to get the battery replaced. Now it starts but that ticking sound is MUCH louder now and can be heard well even sitting inside the van with the windows and doors closed. The ticking occurs immediately after starting the van. It is always there and increases with acceleration while driving and in idol. We are suppose to be driving our van on vacation in 3 days but now don't know what to do. Any idea what could be wrong, how easy it would be to have it fixed and how costly it would be?   Thank you for your help!

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