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SUVs GMC Acadia GMC Acadia Problems and Repairs
492 messages, Last post on Nov 22, 2009 at 9:57 AM
You are in the GMC Acadia Forum. Your Hosts are steve_ & tidester
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Replying to: asantheb (Nov 22, 2007 4:12 am) P.S. When I sent back the Patherfinder it had 15,800 miles on it!! just think if they would have took it back at the 1000 mile |
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Replying to: stage (Nov 20, 2007 10:58 pm)
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Winter has arrived and I'm now getting to check out the AWD of my 2008 Acadia. After a 3" snow I though I would try it out on a driveway. My test: Stop on an incline, then resume up the incline. Results: Going forward, the all wheel drive worked as expected. As a wheel began to slip, other wheels began turning and I was able to drive up the incline just fine, slow and steady. Driving in reverse gear produced a different result. The right rear wheel would spin and the vehicle would not move. At about 3500rpm one or both of the front wheels kicked in, but the left rear still did not, causing the rear of the vehicle to begin sliding to the left, but still no movement up the incline. By the time the front wheels kicked in, the engine RPM was so high and the back right wheel was spinning so fast that any wheel turning was simply going too fast to get a grip. (My guess is that the front right wheel must have gotten some type of grip to cause the rear to slide to the left?) I never made it up the driveway while in reverse gear. We tried this test several times. Me thinks the TCM needs an adjustment. The service guys at my GMC dealer know of no tech bulletins out on this. I have it scheduled for service on 12/11/2007 -- I'll let you know the response I get. |
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Replying to: curlee13 (Dec 06, 2007 6:51 am) I called OnStar when the StabiliTrak and Traction Control messages came up in the DIC and asked them to run a diagnostic check. They said the codes they see are: 1) My ABS is not functioning, 2) the StabiliTrak is not functioning, and 3) there is a high-priority need for the PCM to be serviced within 24hrs. It's always a good idea to call OnStar (if you have it) to get the codes documented -- in case they mysteriously go away before you get it back to the dealer. After the 1st service, the error messages were resolved but the odometer began registering only 1/3 of the miles I was driving. I noticed this because my avg. MPG dropped to about 4.5. Took a while to figure out that the mileage was not accruing properly. Another trip to the dealer and a PCM update fixed that problem.
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Replying to: tuffsubject (Dec 07, 2007 11:24 am) |
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| Now that -30C weather has arrived I was so pleased I had the remote start on my 2007 Acadia, then for 2 days recently it stopped working. Dealer informed me that GM already was aware that because of the Candian difference in gas mixtures (we have up to 10% ethanol) the fuel sensor notes "moisture" in the fuel so won't start, and thgat the gas guage reads errors too. When I looked at the guage my full tank read 1/2 full. GM is in process of rectifying the sensor to stand Canadian winters. On the other hand, I drove 1300 kms through 2 bad snowstorms in the last 4 weeks and traction was great, as was mileage. | |
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Replying to: thepas (Dec 10, 2007 10:30 pm) Since you are in cold weather -- try this for me. Park on a snow-covered incline, headed down. Then put the vehicle into reverse and try to back up. I have found that one rear wheel spins, and the others don't, until I get to about 3500rpm, then the other wheels kick in. By this time, the one wheel is spinning so fast it has no traction at all. Does your Acadia do this? Then, try parking on the same incline, this time headed up. The AWD seems to work fine in this situation.
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Replying to: tuffsubject (Dec 11, 2007 12:13 am)
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Replying to: thepas (Dec 11, 2007 7:53 am) |
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| I've had my Acadia for 6 months and put 3500 miles on it. I love it, but the transmission had been a problem unitil I brought it back to the dealership for the first maintenance & software updates..... I drove 5 miles local road to home after it was done and the improvment was SO NOTICEABLE! The gears changed quietly, smoothly just at the time I wanted it happen... like when I was driving my Camry....My wife is the type of hit the road and go driver and has no idea what transmission is but she drove it last weekend for shopping and told me she felt the big difference happened to acadia and the change was positive... If you have problem w/ acadia's transmission and haven't tried the software updates yet, I highly recommend you to do now. | |
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