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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
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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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Replying to: ron_m (Jan 02, 2005 2:26 pm) It happens when I am I put it in drive and when I am in park or just stopped at a stop sign. My front end will vibrate severly with a hmmm also. It vibrates so much the steering wheel is vibrating. I get the feeling that the interior is affected by this more than the exterior because when I try to hear it from the outside I can't. My trailblazer is a 2002 EXT LT. Thanks for any help! Corrina
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Replying to: corrinas30 (Jan 20, 2005 7:19 pm) What you have described sounds more indicative of bad engine mounts. When you have bad steering wheel vibration while sitting at a stoplight, for example, you could very well have engine/motor mounts that are fatigued. There are also transmission mounts and rear differential mounts. Based on what you have described in your post, most likely you aren't having transmission problems. However, I could be wrong about this. Ron M.
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Replying to: ron_m (Jan 20, 2005 8:20 pm) Thanks. I think you might be right. I have been saying that it sure sounds like something came loose and it causing the vibrating. I had a different trailblazer before this current one. It was a 02' also but just a LT. In that one a transmission mount did fall of. This vibrating is simular to that but located in a different area. We live in a pretty rurual area down a lengthy dirt road. Re had flooding Mon. and Tue. and I decided to have a little fun. I am starting to think perhaps I knocked something loose. Thanks for the idea. I'll suggest that to my service guy. Corrina |
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Well it is refreshing somewhat to hear all these problems with the transmission everyone is having and on the other hand it is also a bit frightening. I bought a 2004 trailblazer with 33,000 miles on it in Oct of 2004. I have had it to the dealer for a engine light problem, leaking in the vehicle under the driver side console. Recently however my transmission blew out as I was driving Sunday. It won't shift into fourth gear ( at around 50 miles an hour). I took it to the dealer with 42,000 miles on it and they said that my transmission blew becuase the radiator was leaking and leaked into the transmission so I need to replace both items at about 3,500.00. I was sold a Ford ESP plan (BaseCare Plan) which covers the transmission but not the radiator. So Ford told me with will not cover either or them becuase the Radiator is what made the transmission go. Does any of this make sense to anyone else. PLEASE HELP with any advice.
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Replying to: vfocht (Feb 01, 2005 7:22 pm) |
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