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Chevrolet TrailBlazer Noises and Sounds

46 messages,  Last post on Nov 18, 2008 at 11:25 AM

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#27 of 46 Re: GRINDING IN THE FRONT END [murrr77] by jworkman Mar 29, 2007 (6:44 pm)
Replying to: murrr77 (Jan 15, 2007 7:09 pm) GM redesigned the intermediate shafts on the steering systems of most of their vehicles several years ago....and have had NOTHING BUT PROBLEMS since! Just in the last year since I have worked at a GM dealership, GM has issued at least 5 service and parts bulletins on different fixes for this problem. Everything from "just grease the shaft and pack it well", to "replace the whole damn thing"...the current fix. Unfortunately, the TB shares this crummy two-piece design, but oddly enough, none of the bulletins apply to the TB family, only full-size trucks and some of the car lines.   Having said all of that, we have found that MANY front-end noises and weird, "I can't even tell WHERE that noise is coming from" situations can be explained by GM's bad idea for an intermediate shaft. But, since the bulletins don't apply to the TB family, and GM doesn't have a campaign part # for a new shaft for the TB family, there is little that can be done.It poses no safety hazard, just makes weird noises. So opt for the premium stereo, and crank up the tunes, I guess...hahaha.
#28 of 46 Loud Clicking Sound after Start up ??? by jaws24 Jan 13, 2008 (12:20 pm)
I have a 2003 TB ext - Right after it is started a loud clicking sound can be heard from the rear passenger side !! It clicks for about 3 to 4 minutes and then it stops, everything seems normal after the first 3 - 4 mins. It just started yesterday... Does anyone have any input on this issue !!! Thanks in Advance... Replies to this message: bigblue7 (Feb 21, 2008 10:07 am)
#29 of 46 Hissing noise and rubbing (popping) by rwyatt80 Jan 13, 2008 (5:17 pm)
I have had the hissing issue from my instrument cluster as well..I will check the fan clutch this week.   when i turn my wheels hard, i hear a popping sound. I have looked under my truck and nothing stands out that could be causing that noise. It started doing this a couple of weeks ago.   any idea what it could be??
#30 of 46 2002 Trailblazer with intermittent growling sound by cussins Jan 15, 2008 (2:53 am)
Hi. This is my first attempt at a forum and I really could use some ideas. I have a 2002 TB that has an intermittent growling noise coming from the front. It seems to show up in colder weather (30?? and below). I'm getting this info second hand (this is the wife's vehicle) so bear with me. I thought that the fan clutch might be failing but a few days ago, when she heard the noise again, she was turning everything off (radio, heater fan, etc) she noticed the 4 wheel indicator light blinking - TB was in 2 wheel drive. This seems to manifest while driving. If she parks the TB and comes out later and takes off the problem is gone. I haven't had this experience, but she has told me about it several times last winter and several more this year. Any ideas?
#31 of 46 02 Trailblazer loss of acceleration by brinak Jan 17, 2008 (7:31 am)
I have an 02 Trailblazer. Recently, I experienced a loss of acceleration while driving. I had my cruise set on 65 and suddenly the vehicle just lost acceleration and nothing happened when I mashed the gas pedal. I pulled over and came to a complete stop and then the vehicle would accelerate but about a 1/2 mile up the road the same thing happened again. The vehicle idles smoothly when I pull over. I put it in 3rd gear and kept the RPM between 1500 and 2000 and got it to the shop. They replaced the MAP sensor but the next day the same thing happened again when I got the vehicle up to about 60 MPH. I took it back to the shop (no fault lights were lit up on the dash) and they checked it out and eventually said the MAP sensor they put it was faulty. The vehicle drove fine for about 3 days and then this morning the same thing happened again and the vehicle lost acceleration. Has anyone had this issue or have any suggestions? Replies to this message: phillipsc (Feb 10, 2008 4:26 am) crappychevy33 (Sep 01, 2008 1:38 pm)
#32 of 46 Re: 02 Trailblazer loss of acceleration [brinak] by phillipsc Feb 10, 2008 (4:26 am)
Replying to: brinak (Jan 17, 2008 7:31 am) My 03 did the exact same thing yesterday. Having the fuel filter changed, it is time for that anyway, but after looking around on the threads, that may not fix it. Let me know what you find out!
#33 of 46 Re: Loud Clicking Sound after Start up ??? [jaws24] by bigblue7 Feb 21, 2008 (10:07 am)
Replying to: jaws24 (Jan 13, 2008 12:20 pm) I also have an 04 EXT, and this horrible clicking noise is coming from the rear passenger cargo/third row area behind the paneling. Does anyone have a clue what this could be???
#34 of 46 2003 Trailblazer- clicking noise under hood by jbeal1 Mar 28, 2008 (11:40 am)
I was hearing a clicking, ping noise under the hood. It was not constant and sounded like a component was turning on, it would click (ping)steady for a while and then stop.It sounded like the fan was hitting something under the hood. What I found was that it was the fan clutch. Fan clutch cost was $290. This fixed my problem.
#36 of 46 trailblazer strange noises by kashwaa Apr 27, 2008 (3:14 pm)
hi guys   i have a 100,000 k.m 04 trailblazer,a bit troublesome but i love her though   my transmission failed a few months ago and i had to have it rebuilt,it's working pretty fine right now   the problem is that some times i hear a strange resonant noise ,it comes and goes,and varies in intensity,some times it gets really annoying,it seems to be coming from somewhere in the middle of the car   it appears only somewhere between 1500 and 2000 rpm,once it gets below 1500 or over 2000 ,it disappears right away   i think it might be the torque converter or the exhaust mabe but i hope somebody could help me figuring out what the problem is

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