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Chevrolet Avalanche Transmission Problems



  • My 07 avalanche has not had much problems until recentlyin 2007 I had a 3000 dollar repair bill for struts belts another suspension problems. But thats in the past last night I was on my way to work and I was at a stoplight I was waiting for oncoming traffic to drive by the opportunity came so I could turn as I turned my rear end sounded like the tires spin out I wasn't drive and could not accelerate after that sound I could not accelerate in third gear second gear or first I had it towed to my local dealer whom I've always used for any of my repairs and the dealer told me that my transmission needed to be replaced and was going to cost 2822 dollars and 49 cents and to rebuild the transmission would be about the same cost with the new transmission I got a 300,000 mile warranty 3 year warranty my Chevy Avalanche has 94,000 miles on it it is an 07 LT model I bought the truck used the truck had 35,000 miles on it.I was reading some of the old posts and it seems like I'm getting a good deal but would like to know if this is true and is worth the money.
  • It's an OK deal if you plan on keeping the truck a while longer. I was able to get my trans rebuilt by my local (trusted!) mechanic for a little over 1/2 of what the dealer's asking...that included a 1 year warranty which was plenty of time to look for a replacement truck. Lucky that you got 94K out of it!
  • KCRam@EdmundsKCRam@Edmunds Mt. Arlington NJPosts: 3,495
    I've never even heard of a 300,000 mile warranty on a class 8 truck/tractor or a motorcoach, let alone a pickup transmission. Please check with the dealer again on that mileage.

    kcram - Pickups/Wagons/Vans+Minivans Host

    KCRam - Pickups/Wagons/Vans+Minivans Moderator

  • jpinelajpinela Posts: 6
    edited February 2013
    I don't know if that is a deal. It seems like everyone has replaced the tranny.
    The dealer is making money. These chevys are not made ti last.
    I'll consider buying a toyota or Nissan.
  • Don't get me wrong. I love my 2007 Avalanche.
  • gmcustsvcgmcustsvc Posts: 4,001

    There is a replacement parts warranty of 3 years/100,000 miles on transmissions. If you have any further questions, we can be reached at (include your name and contact information, the last 8 digits of your VIN and mileage, and a summary of the situation so far).

    Sarah, GM Customer Service
  • Not that it should go out before 100,000 but at least you got 94,XXX our of your vehicle, ours did not even make it to 30,000 miles. We got the transmission replaced end of October and it doesn't matter who you contact, it is worthless they will not assist you. Too bad so sad your warrenty is up sorry we put a junk transmission in that model but now you still get to pay for it. They have the worst customer service and we have made it known to anyone that will listen. Right now as we go on the lot looking for a new car we still continue to inform people about our experience and we will not touch another Chevy for the very reason no car that was taken care of like ours, not used to tow and did not last us 30,000 miles without the most major expense of any of our vehicles and two are over 10 years old! Pathetic!
  • gmcustsvcgmcustsvc Posts: 4,001
    I see in an earlier post that your dealership was going to work with you to have repair work done on your Avalanche, jpinela. Did everything work out okay?

    Sarah, GM Customer Service
  • I have an 05 Chevy Avalanche now on the second tranny outage. Found a 4L60E at a good price that was going into an 01 Silverado and with shift kit, racing clutches (red stage)and stall convertor (2800 stall),corvette billet servos. I am being told this is a much more aggressive tranny and will not be anything like the stock one and eill be a totally different ride, but I wont have to worry about it going out. So my question is this a good call and what are the ups and downs if any??
  • citydudecitydude Posts: 1
    I have a 2005 Avalenche. I have read all the postings but none directly address my issue. With the 2 wheel button engaged, the transmission will work for a bit, then I loose all gears. If I select the Auto 4 wheel button, the transmission will work fine and has never slipped out of gear. Does anyone have a suggestion regarding what is going on? Thanks
  • KCRam@EdmundsKCRam@Edmunds Mt. Arlington NJPosts: 3,495
    That certainly sounds like your transfer case is failing and acting in a neutral state when in 2WD. In Auto-4WD, both driveshafts are engaged and you feel the trans working, but you may actually be sending power only to the front axle.

    kcram - Pickups/Wagons/Vans+Minivans Host

    KCRam - Pickups/Wagons/Vans+Minivans Moderator

  • jwaymanjwayman Posts: 6
    I'll join the club. My 2006 Av with 87,000 now needs a new transmission. This is the third GM truck that I've owned that needed a new transmission before 90,000 miles. This will also be the last GM vehicle that I ever own.
  • wallace14wallace14 Posts: 1
    First off, thanks to everyone who posted on this forum with Avalanche tranny problems and GM customer support.

    My transmission went at 86,000 on my 2007 Avalanche. Pulling out from a stop sign I heard the loud "thud" lost overdrive, and limped home with manual shifting. I took it to the dealer, they quoted 3300 for a rebuild, 3800 for a replacement.

    I phoned GM Customer Support, we spoke several times throughout the process, and they ended up paying for the rebuild less a $900 deductible which I was responsible to pay.

    So while it still sucks the transmission went at 86K, at least GM made the effort to pay for some of it rather than making me foot the entire bill for a faulty part.

    So thanks again to everyone for the information.
  • lionmamalionmama Posts: 2
    That's one. Wish they would make good on replaced trannies for the rest of us.
  • My 2004 Avalanche's transmission just went only 56,000 miles. Is GM making good yet??? I see that GM took care of some but not others. What are the criteria to get them to fix the problem and who do I have to contact.
  • pdropdro Posts: 2
    My 2007 LT tranny just croaked with 67k mi three weeks out of extended warranty but under mileage. Lost 3 and OD with so hard my head almost hit the steering wheel. GM charged me a 1k deductible and four days later went on my way. The day I got it back on highway in ID it shuddered like crazy. Almost wrecked it, and the 4wd service light came on. Took it home and tried 4wd, screech! Was fine before. Parked it. Duh, the torque converter is bad. They are replacing that, but they say the transfer case is a separate $2100 issue. Isn't it directly hooked to the trans by the output shaft and not designed to take that kind of shock? Coincidence, really? I have talked to several mechanics stating it is no coincidence... Got a ticket thru customer service and waiting for dealer to call. Second time around without truck for 1.5 weeks because of initial mess-up. I am sure the transfer case got blown up by the bad trans and they missed that just like they missed the torque converter. Had to stay local on Thanksgiving weekend.. Good stuff... If no positive outcome I am going back Japanese. Fuel pump already done under warranty... Good luck!
  • Our truck has never driven the same since the transmission was replaced. It was never made right in our case and we were out of pocket way to much money for a 2007 car that still to date has under 40000 miles. Extremely dissappointed and went with Toyota in October for a new vehicle because we will not buy another Chevy after our horrible customer care. Nothing was done other than an offer of money towards another new vehicle and it was just over the out of pocket expense to replace the transmission. Our truck had been paid off and we buy vehicles as an investment to last us many years, we should not have had the issues we had so there was no chance of us picking up a payment on a vehicle with a company that did us so wrong.
  • pdropdro Posts: 2
    So the saga continues. After contending that no help will be given and there is no possible way a trans slamming out can damage the transfer case (which it is bolted to!), even though the trans was rebuilt and left with a bad torque converter, which has taken another week and a half to fix. Escalation in GM customer service has reversed the position and i will be getting help fixing the car. Hope to pick up tomorrow and will see how it runs.
  • It really is a travesty after reading about all these transmission problem posts. I have a 2004 - Z71 Avy, I purchased brand new in Sep 2003, ~$44k truck at that time, all the bells and whistles and upgrades. I bought the xtended warranty, and of course thats long expired. The passenger seat motor failed just before warranty expired, fixed at no cost. The transmission was hard shifting on starts, about a year or so after buying, almost like a "bang", dealer in Northern VA said it was common but should not be a problem, they actually pulled the driveshaft and put in what I believe was nickel coated splines to help it shift smoother - not!, had no effect. Since warranty expired, Ive had both driver window motors fail, then both rear window motors have slowed to half speed, the heater or air conditioner now only works when it feels like it (winter or summer), and the 6 unit CD player confiscated 6 of my favorites last year - and still wont eject them. Today, back out my driveway, put in drive, a clunk, and voila!! No overdrive, no 3rd, 2nd barely holds going up a slight incline, and basically only have 1st gear! This truck has been babied, Mobil 1 Synthetics from the start, required dealer maintenance (tranny flush and transfer case and rear end gear oil 2 years ago), cleaned and waxed, and planned to be my retirement vehicle. It only has 108,000 miles!!! These trucks are supposed to log over 250k without major problems, when serviced and maintained! I work for a major GM supplier subsidiary, and was so thrilled to own this for a decade, now this. Brought to local dealer today in 2nd gear, 1 mile from my home, and they found zero codes, bringing back this Thursday for a longer investigative visit. I can hardly wait what GM's input/response will be on this one, as I have seen quote a few here from GMCUSTSERVICE. I see theories on sprag, rebuilds, replacements, TCM's, solenoids, etc. Engineering design flaws??? Hmmmm. Standing by their product? I hope so...Will update here with shorter briefs, once I get new info, just wanted to get the background established.

  • baggedavibaggedavi Posts: 2
    I have an 03 avalanche, only has 19k original miles. The other day I was driving and it went into limp mode I checked the fuses and an ignition fuse was blown I changed it and all was good again. A few weeks later it went back into limp mode, checked fuse all were good, so I reset the computer and go for a test drive still in limp mode. While I went to reverse out I put it back in drive and all forward gears wouldn't work... So I did some research I changed the 1-2 and 3-4 shift solenoids and transmission filter. Still no forward movement.. So I changed the VSS because my speedometer quit working too. Still nothing. If I put the truck on jack stands the wheels turn in all gears... Can someone help me I am having a hard time believing I need a rebuild with such low miles... Also when I changed the fluid it wasn't burnt and looked good
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