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SUVs Chevrolet TrailBlazer Chevy TrailBlazer Transmission Problems
422 messages, Last post on Dec 03, 2009 at 2:16 PM
You are in the Chevrolet TrailBlazer Forum. Your Hosts are steve_ & tidester
| What jnshell describes is exactly what is happening on my '03 Trailblazer. Took it in this a.m. and service just called to say they can't find anything wrong! It has only happened 4 or 5 times in 13000 miles (6 months). But it could be a safety hazard. Hope someone out there has the answer. At least I know I'm not imagining things! | |
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I have had this happen on my silverado truck. It has 35K miles and is 3 yrs old. It happens every few thousand miles. I will come to a stop like at a light it will turn green i will hit the gas its like the truck is in neutral it will rev up (rpms go up) then kick into gear. I have even squealed the wheels once in a dunkin donuts lot. Now when i feel it kick in i let off the gas and reapply and its fine. When you feel it lock up let off the gas as fast as possible then hit the gas again it should be ok. It isnt a major problem but there is a fix. I will look for the exact part and reply once i find it Ryan |
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check this out http://www.gm-trucks.com/forums/index.php?act=ST&f=3&t=17- 831&hl=transmission&s=40190f4c60df10059f6ed10318168ce0 Its the valve body that needs to be replaced Hope this helps you out |
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The problem that I am having with my transmission is that when I get up to 50mph, the transmission stalls out, not changing to the next gear. The first time I took it back to the dealer, I was told that my transmission needed to be reset. About a month later, I had the same problem again. This time, was told that they did not know what was the causing my transmission to do this and that when they hooked it up the computer, no codes were displayed. But they said that the valve body cover needed replacing. So, they repaired it. A couple of days later, I returned it again for the same problem,(5/20/03) this time I contacted GM. This time the dealer tried to make me feel like the problem was in my head. As a result, the service manager and I went for a test drive, with the manager driving, experienced the problem for herself, what I was talking about. For the past week, my representative from GM has been in direct contact with the dealer. As of 5/22/03, they still have not determined the cause. Around 2:30p EST, my service advisor at the dealer informed my that my car was ready and that they rebuilt my transmission. My question is how long does it take to do a complete over haul on a transmission? Should I trade the car in? I only have 39,325 miles. Also, the first time I took it back, I had about 34,000 miles. P.S As of 5/23/03, the dealer has not been responsive to GM.
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| how long did it take them to rebuild the trans??? It should only take a few days usually (max) | |
| Hi I just wanted to say I too have been having problems with my car not down shifting correctly. I took it to the dealer and they had it for 15 days and I was told there was a clog in the transmission line. Well I am returning the blazer to the dealer again tonight for the same problem. They changed everything the first time including the value cover and then when that did not help they came up with the clogged line. The blazer does not do it all the time, it does do it when it is cold and also when it has been on the road for a long period of time. I am also having problems with A/C not working all the time, it will run for a long time and then if you stop and shut the car off, when you start it back up, the A/C no longer works. This too they have no cure for it. | |
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I have been having the same problems with my 2002 Trailblazer since around 20,000 miles. I was also told by the dealer that there was nothing wrong with it. Last week (at 33,000 miles) my transmission went out leaving my daughter and I stranded on the side of the road. We were only going about 30 miles per hour when it happened and my rear tires just locked up and truck started skidding. I am so thankful that I was going at a slow speed, otherwise I could have had a serious accident. The dealer changed a part in the transmission called a Sun Gear. It runs fine now, but I am not convinced that nothing else will go wrong with it because it has been in the shop four other times and one being the rear end. I hope this info. helps!
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Reopened for updates. Steve, Host |
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The transmission went out on my 02 Trailblazer last night for the second time. The initial failure occurred 1 year ago almost to the day, the vehicle was 18 months old and had 32,000 miles. In drive it suddenly started slipping and making a loud whine. It would not shift, but sometimes would "catch" enough to move forward. I had no reverse at all, but park seemed to function normally. The dealer said the sun gear broke and he rebuilt the transmission and replaced the gear. Last night the exact same problem occured again. I got my vehicle back on 12/22/03 and it broke down with the same exact symptom on 12/31/04, now has 54,000 miles on it. I was wondering if this is a generic weakness in this model? I had originally purchased the vehicle with hopes of buying a travel trailer, and using it for a tow vehicle, but have not done that yet. With the repeat transmission failures, I am skeptical about towing with it. Anyone have any experience with this? Any idea why the transmission keeps failing?
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Replying to: ken45 (Jan 01, 2005 8:55 am) If I can find it in one of my desk drawers at the office, I will post the information a GM tech sent me regarding the most common causes of these transmissions failing. When my '02 TB's tranny failed on me about 3 three years ago, the tech that rebuilt mine faxed me a list of components that he had to replace. This fax also contained a list of GM vehicles that used the exact same transmission and it stated that they were experiencing failures in all of the models shown on the list. Unless I am mistaken, the transmission is the 4L60E. It had worked well in the past for GM in many of their other vehicles, but they started having problems with them in 2002. Not sure what changed about the part machining or assembly processes, but something did. Mine just downshifted really, really hard at about 50 m.p.h. while traveling uphill on a trip to the mountains with my then fiancee. Then it would never shift into 3rd gear again after that. Ruined our trip--and we had to drive home the following morning in a Cavalier rental car. It shifted pretty smoothly for a while after it was rebuilt, then it started slipping again to some degree. Scared me enough to trade it in on something else. I was just always suspect of the SUV after that. Most likely I could have gotten over the tranny issues, but in my particular case there were too many other issues with the SUV that I had experienced. The transmission failure was just the final blow to me. Ron M.
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