2002 Chevrolet Trailblazer EXT: complete transmission failure

Filed Mar 11, 2008 · Transmission · 83,145 miles · PA

With no prior warning of defect, my 2002 trailblazer would not accelerate while trying to merge into highway traffic. After initial look through for any obvious signs of what may be wrong, I was unable to drive my car and had it towed to nearest dealership where a transmission failure was quickly diagnosed and I was quoted a repair cost of just under $5,000 !!! My wife and I think this is pretty odd considering the regular maintenance and absence of signs of trouble, so we researched the internet only to find out that transmission problems (particularly on 2002 trailblazer) are very common. It is believed that general motors is very much aware of this and the phrase "silent recall" kept coming up.

Filed Jan 25, 2008 · Transmission · 80,000 miles · GA

Transmission went out at 80,000 miles with the sunshield and sun gear had trans replaced with no help form gm this is a problem with the 2002 trailblazers and up trans I fill that gm needs to recall this product be for it kills someone and make good to all consumers that had to pay for there's to be fixed.

Filed Jan 3, 2007 · Transmission · 75,000 miles · OH

Transmission failed. Diagnosis was reverse sun shell failure (just like all the other complaints listed on this site)! Gm refuses to offer any cost assistance with the repair or acknowledge that there is an obvious defect that should be recalled!!!

Filed Dec 1, 2005 · Transmission · 80,112 miles · WV

Transmission coolant pipes: on the afternoon of november 12, I was driving on a local freeway I began experiencing difficulties maintaining speed. While the engine had full power, I had to pull over as my vehicle effectively lost power to the wheels. At this time, I had the vehicle towed to the local chevrolet dealer where I have the vehicle serviced. The vehicle has always been regularly services at gm dealers. The following monday, my suspicion of a transmission failure was confirmed. Several days later, the old transmission was replaced. At that time, the transmission coolant pipe was discovered to have been rusted through and this was identified as the likely cause of my transmission failing. I ultimately had to have the transmission and that coolant pipe replaced at the cost of several thousand dollars. I believe a strong case exists for calling attention to a need to inspect and perhaps replace critical underbody fluid pipes on similar vehicles due to the likelihood of rust-through and other failures that could cause substantial damage to vehicles.

Filed Mar 24, 2005 · Transmission · 40,439 miles · TX

Small "clunking" noise from under vehicle when shifting from park to reverse or drive. "clunking also evident when slowing to a stop. Ultimate transmission failure occurred while accellerating from a stop. A very loud "clunck" was heard from under the vehicle followed by a loud wirring noise. The vehicle would not shift from first gear afterwards until about 40 MPH. The "wirring" noise continued when the vehicle was stopped and the transmission would not shift into reverse. The dealer's mechanic overhauled the transmission and replaced the following "worn" parts: sun gear shell, sun gear, 3-4 clutch. Vehicle had 40000 miles at time of failure.