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Pontiac Montana versatrak system issues

18 messages,  Last post on Jun 14, 2009 at 11:31 AM

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#14 of 18 Re: montana versatrak system issues [jramsey3] by snowdogkh May 28, 2008 (8:53 pm)
Replying to: jramsey3 (May 28, 2008 5:23 pm) jramsey3, Thanks for the reply. After reading as much as I could find out on the versatrak online I went ahead and bought the 4 pints of fluid at my local dealer (talked the dealer down to $20.00 a bottle) and did the change. Pretty simple process. The fluid that came out looked brand spanking new. I figured this was not good since the dealer I bought it from (different dealer than where I bought the oil) must have tried the flush and it did not work. Well I had the fluid so I decided to give it a shot anyhow. The fluid that drained out stunk bad like most GL-5 rear end fluids and was gold in color. To my surprise as I opened the new versatrak fluid it was clear in color. So I thought maybe someone put the wrong fluid in it OR the veratrak fluid has been updated (I think I read that somewhere as well) So I refilled it...took it across the street to a parking lot and started to do the 5 minutes of circles to the right. The howl was still there and BAD since the rear end was still warm from the drive home last night. So I did a bit less than a FULL hard turns as I was worried I may make something worse. After about a minute the noise started to fade and as I turned even harder it was still fading. Big smile on my face at this point! So I finished the 5 minutes of doing a continuous right circle and getting dizzy as hell...then spun it around and did the hard lefts. Same thing...lots of grown off the bat..and after a minute it went away. I was happy as a pig in mud! Hopefully this will keep it quiet. I am shocked that a simple fluid change could quiet somethign so bad sounding. The TSB I got from the dealers service department said to flush it after doing the turns. (2 flushes) I plan on picking up 4 more bottles ad draining it again especially since I think the fluid that was in it was standard GL-5 80W90. So $200 in fluid (and I still think that is a ridiculous price for that stuff) is a lot cheaper than a new rear end!   Thanks for your input and hopefully this will help someone else. I think the key (according to a driveline guy I know that heard the noise before I flushed it) is weather the clutchpacks in the rear end have been glazed up or not. If you catch the howl and or don't do real hard tuns too much if it is growling, then you may be ok but get the flush done ASAP and DON'T make tight turns. If you glaze the clutchpacks it's all over! I did notice that the fluid that was in it was mighty thin after it was warm so who knows what it was. The versatrak fluid was pretty thick at room temp. I'm curious if anyone knows if the original versatrak fluid that came in these was gold or clear??? Anyone know please post! I'm also curious how thin this oil will be after I warm it up and dump it on the second flush. As it has been mentioned, if not here elsewhere on the net, It would be a good idea to make this an annual fluid change. Or at least no more than maybe 20-30K.   Love the van so far!
#15 of 18 Service Traction System by alphahammer May 28, 2009 (9:05 am)
I have a 2002 Montana. I keep getting the SERVICE TRACTION SYSTEM light which is followed by the ABS light and the TRAC OFF light. I have had it in for service and got told they could find nothing wrong.   Is there any way to turn the traction system off and/or the ABS system off? Replies to this message: ray80 (Jun 03, 2009 3:18 am) alphahammer (Jun 14, 2009 11:31 am)
#16 of 18 Re: Service Traction System [alphahammer] by ray80 Jun 03, 2009 (3:18 am)
Replying to: alphahammer (May 28, 2009 9:05 am) Hhmm, If the warning lights are on there should be a code set (which may require a GM dealers scan) which usually should indicate problem with particular wheel. Many times the connection to the wheel speed sensor may be loose or corroded, or it may be the sensor itself. Replies to this message: alphahammer (Jun 14, 2009 11:31 am)
#17 of 18 2002 Montana Missing by alphahammer Jun 14, 2009 (11:30 am)
My 2002 Montana has an issue with randomly jerking as I drive. It happens at varying speeds from 10 mph up to over 70 mph.   I will be driving and suddenly the car will give a little jerk or 2. The jerks are harder and more noticeable the faster that I am driving. I thought that somethimg is causing it to miss but the shop told me that they can find nothing with the scope and that it my be the 'throttle positionin sensor'.   Any thoughts
#18 of 18 Re: Service Traction System [ray80] by alphahammer Jun 14, 2009 (11:31 am)
Replying to: ray80 (Jun 03, 2009 3:18 am) It was the sensor connection. It was not easy convincing them to check it out. They put in a new wheel bearing under warranty forlast one done first.

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