Nine problems related to power train have been reported for the 2005 Chevrolet Avalanche. The most recently reported issues are listed below.
At 80k I put my truck in reverse and heard a clunk sound and immediately it wouldn't shift gears anymore. I went and had the transmission rebuilt which lasted roughly 10k more. Now, the truck won't shift yet again and the filter was changed and the rear output seal. Currently, when I drive since its my only vehicle, one minute it will shift fine but after I turn the engine off and on again, it will not shift from first and the again, check engine light is on!.
Driving down county rd stopped at stop sign. Started to take off it started slipping then quit pulling completly. Puet it in all drives 1,2,3, & d nothing happened cut engine off put it in drive it started out like nothing happened for short distance then same thing again.
While cruising on rt 101 at 65 mph, vehicle automatically downshifted into second gear for no reason. In response, I was forced to decelerate to 35 mph. Tried explicitly placing vehicle in third instead of "d" for drive, but, the drive train was unresponsive. Shortly thereafter, a "hot transmission" message appeared on dash and I pulled over and checked fluids. Fluids looked good. Drove vehicle home in second gear without issue. Upon investigation, I discovered that my Avalanche was built with a widely recognized design flaw and undersized transmission. Various sources suggested I file complaint this address: https://www-odi. Nhtsa. Dot. Gov/vehiclecomplaint/index. Xhtml.
Clunk when going into drive, also shifts hard when driving down the road.
Went to pull out of a parking lot, gave it a little gas and nothing. Engine idled up but it would not move. Went down through the gears but still would not move. Had to put it in reverse and back into a parking space and called a tow truck. $2900 dollars later the transmission was replaced with genuine gm rebuilt transmission.
Service 4wheel drive message appears. I have had this problem repaired numerous times. No codes are listed in the onboard computer. Technicians cannot identify the failing component. They replace parts until the message goes away. The vehicle shifts into 4 wheel drive without warning. This ahs happened to me numerous times. This happens during high humidity or rainy conditions. Numerous TSB have been issued. One common cause is wiring harness connector that is prone to fail due to moisture. Chevy has not issued a safety recall.
The transmission began to shift hard. The answer from the dealer was need new transmission for $4500. Stated that the fluid sensor housing was cracked and the entire transmission needed replacement. Seemed a bit ridiculous for a two year old vehicle that towed nothing.
2005 Chevrolet Avalanche headlight was loose and fell out while washing the vehicle. When driving the drive train makes a clanking noise. ** answer required*** after a thunderstorm, the next morning, the consumer found that water had saturated in the tailgate area.
Purchased may 31, 2005. 39 mileage. $43,000. 00. 8 months later the transmission started jerking. We took it to the dealer 6+ times and they said they couldn't find anything. Now at 75,000 miles it won't drive in d it has to be in 3, 2, 1 to drive. I have read 100's of complaint about transmissions in 2000-2010 models. Gm needs to take care of their customer transmission problem or design a better transmission.