Noise in front upon start on a cold morning; sounds like a grind or a squeal to me. On a 0 degree morning the noise lasts about 10 seconds, gradually getting quieter until no sound. On a somewhat warmer day (10 degrees or so) the noise lasts a shorter time. I think at about 30 degrees there is no noise.
Dealer/mechanic has had the vehicle in 3 times to fix the problem; first put in a drive belt, second a belt tensioner, third changed out the power steering fluid to some 'Arctic' fluid. Now he claims the noise may still be there, but not nearly as bad. He also claims the noise will cause no damage down the road. In other words, he is telling me there is no problem. First day I had it home it was 0 degrees and the noise was every bit as bad. Now what?
I just had the same problem with our 2003 Chevy Trailblazer. I never heard it until this morning. It sounds like the transmission or the transfer case. I did have it in AWD and 4Hi at times yesterday. The problem wouldn't go away even after I warmed it up. It took about a mile of driving to clear the sound. Coincidentally, it was 2 degrees outside this morning. I am researching it now and will take it to the dealer under warranty. Has this been a recurring issue with trailblazer owners? It is horrifying sound for such a new vehicle.
We've experienced the same problem on our 2002 Trailblazer. The dealer mechanic thinks it's in the power steering pump. He also went out into the lot and started a couple of 2004 Trailblazers and every one had the same problem. It doesn't manifest itself until the temperature drops below 10 or 12 degrees and seems to be directly related to engine RPM. You can hear the whine/grind/squeal increase in pitch as the engine RPM climbs. When the engine warms up, the problem goes away. We're considering a block heater or electric block heating blanket to alleviate the problem temporarily until a permanant fix comes available.
I live in Dallas Texas, our average temperatures are 80 to 100 degrees and I have had the same problems with my 2002 Trailblazer. The problems began after 25,000 miles and has gotten increasingly worse every month. The technicians do not seem to know how to fix the problems. I've taken it in for service twice.
My 2002 Trailblazer has a similar sound, but it is almost like the ticking you would hear when the oil is low. I brought it in to the dealer, and he tried to tell me it was supposed to sound like that because of some crazy named part that I would not have any understanding of. Anyway, has gotten worse since the transmission was replaced a few months ago at 29000 miles...
I have the same ticking noise on my 2002 Trailblazer. Ticking occurs anytime, doesn't last long and only started after 25,000 miles. Took to dealer they advised that GM said it was normal for the engine and was not detrimental to the engine. Going to continue to check on this problem, worried may cause problem after warranty is up in 2005.
I have a 2003 trailblazer and it has a ticking sound, when under 10 degrees. to me it sounds like it may have something to do with the way the engine is set up, for the choke. it will come and go until the eng, is warm. do you have any ideas on this matter?
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