2005 Chevrolet Avalanche Engine problems

Cluster gauge is not read properly all reading are all over the place.

Cylinder heads cracked due to poor casting (known issue by gm). This led to coolant in the engine causing damage to lifters. Expected cost to fix is approximately $1,500 in parts up to $4,000 in labor.

Right after the warranty expired the transmission went and I had to rebuild it. At the shop the techs told me it was due to cooling, and they installed a small cooler because they said the cooling was not sufficient. *Tr

On 12/22/12 @ 5pm- shortly after entering onto the freeway, I started losing power. I didn't get higher than 50 mph before the rpm started increasing & my speed started decreasing. I got off the freeway, at the first exit, approximately 2mins after the beginning of the loss of power. Found a mechanic that was just closing his shop & asked him to give a quick check too see if I could continue my drive home, 32mins away. The mechanic checked under the hood & under the bottom & guesstimated the problem to be the...

Vibration in the engine at 50-58 mph, found water in in transmission. Replaced torque converter and reconditioned transmission. Still experiencing leaks at 57k, fluid was replaced and flushed and minor slipping in first gear.

Traveling home from work on the interstate at regulated speed (65mph). As I started to accelerate to maintain speed gingo up a hill, the message "transmission hot" came on the in-dash display and engine began revving as if not in gear. I could not accelerate and had to turn on flashers and merge to safety lane on right. I continued to slow down until I could engage the transmission again at around 30 mph in 3rd gear. As soon as I started to accelerate past 35-40 mph, the transmission slipped again and would not...

Anytime I turn the air on in my 2005 chevy avalanche it makes a high pitch screaming sound. I have had two blower motors installed and it is in need of a third. This sound is still present even after I have had the new motors installed. I have had one mechanic say their is a crack in the plenum box and it would take 11 1/2 hours to repair and cost $ 1700. This is the only quote I have had so far. I have had it at the dealership where I bought it and they never seem to find anything, then again they seldom do anything right. *Tr

I have a 2005 chevrolet avalanche that the driver side blows hot and the passenger blows cold sporadically. I have read that many people have had this same exact problem. I have only owned the vehicle a few months at it has happened approximately 4 times already. I will have to replace one of the actuators to repair. This should be a recall as it is a widespread problem. *Tr

The body mounts have gone out twice on my avalance. *Tr

Tl*the contact owns a 2005 chevrolet avalanche which was purchased on december 31, 2007. She stated that the heater on the vehicle failed. A certified mechanic found that coolant was being utilized but could not determine where. Upon further investigation, her mechanic found coolant and several cracks in the head gasket. There were no recalls for the failure. The failure and current mileages were under 58,290.

On 3/15/05 the new gto oil pump failed. Returned to dealer on 3/16/05. On 4/07/05 the car was returned to us and we were told it was perfect!The next day 4/08/05 the car was returned to the dealer. The car was repaired that day, and we were told it was now fixed!!! Two [2] days later on 4/11/05 the car was again returned to the dealer. The car is still at the dealer, it is not fixed, it is a piece of used and repaired , broken car. We paid for a new 4oo hp gto, and now after all this agony have had to pay an...