1st Sep 2010, 16:19

Yeah, good luck with that. I put $1400 into my Trailblazer, and then one month later it needed almost $2K more in repairs, so I traded it in for Toyota. Never again will I own a GM product. I only had 90K miles, but the problems started at around 55K miles. The airplane noise is one of a couple of different problems. Listen closely as to where it is coming from. Ours was under the truck and had nothing to do with the fan clutch. It was some kind of air pump on the transmission.

We also had the very popular stalling issue. It idled so poorly it was almost impossible to back up to my boat trailer without it surging and hitting the trailer. It would die off and then surge up over and over again. You couldn't hold it steady on a hill with the accelerator. It was ridiculous. I traded it with a shot front differential and a bad wheel bearing. The differential compromised the transmission as it was overheated due to pushing against the differential, so I am sure the tranny was soon to fail as well as you could smell burnt fluid every time you drove the truck. That would have pushed that $2K in repairs up over $6K real quick!

Another problem area with these trucks is the front suspension steering components. We had the tie rods fail at 30K miles on our first TB. This one needed the left outer at about 75K and the rest were well worn. My uncle had an '03 Envoy and had the same thing happen while he was in the 30K mile range.

Just type "trailblazer issues" into Google and you'll get a whole list of problems that are very common. There's a few people on this site claiming 150K miles or more with no issues. I just can't see it, based on the way we drove ours and how poorly it held up. 85% of the miles were easy highway miles.