Last post on Mar 25, 2013 at 4:05 PM
You are in the Chevrolet TrailBlazer
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Chevrolet TrailBlazer, Heating / Cooling, SUV
#14 of 97 heater fan control/ engine noise on 02 trailblazer
Mar 07, 2006 (1:56 pm)
About a two weeks ago my heater control for the fan will only work on no.4 and 5. An i have a engine noise that gets louder everytime i get hit the gas. I've ruled out the alternater and i took the surpintine belt off an start it. It's quite like it should be. I've been driving it for a year and three months.
#15 of 97 Re: heater fan control/ engine noise on 02 trailblazer [garyfirst]
Apr 19, 2006 (7:20 pm)
I've just recently experienced the same problem except mine started with no. 1 and 2 going out followed by 3 and 4 a few weeks later. I'm now left with 5 or nothing. The same thing has happened with my sister's Grand Prix of the same year which leads me to believe that there is a defect in the control and it's not an isolated occurance, have you learned anything more?
I've also had problems with a "sqeak" somewhere in the suspension and both of my rear speakers stopped working at the same time.
#17 of 97 please help me
Sep 22, 2006 (7:59 am)
Hi guys. I have trailblazer 04 (purchased new). First 2 years and 50,000 miles - now problem. After that:
Engine start stoling now and then, few weeks later engine dyed on the highway 65MPH while towing the boat! Imediately lost of power stering, power breaks! I managed to stop and after few atempt started again and get lackily get home with constant power jump and few stoling. Went to dealer twice: first they replaced crank shaft actuator $550, next day(car stoling again)they replaced o2 sensor=$150! After that no more stoling but: 1 week later while changing the speed of the ac/heating fan it stop working and the same moment hapen foloving: ABS light-on;brake light-on;4WD light-on; cruise control not working; ilumination of driver door butons not working; unable to change the direction of air blow. NOW - after 10 -20 minutes of driving everything goes to normal until i stop and restart the car!!!??? I have been in service with this problem about 5 times, spent $1,250 (replaced 1 computer module)and theproblem is stil there???!!!
Thas enyone have any idea what to doo? Please and Thank you.
#18 of 97 Re: heater fan control/ engine noise on 02 trailblazer [tomcincy]
Oct 30, 2007 (1:59 pm)
I have a 2003 Trailblazer and my heater control stopped working on 1 and 2 then a month later on 3 now it just works on 4 and 5. Have you found any resolve for this?
#19 of 97 Re: stopped working on 1 and 2, later on 3
Oct 31, 2007 (7:19 am)
Probably the blower motor resistor has failed. It's up behind the glove box and blower motor, and is relatively easy to get to once you remove the passenger side lower kick panel and lower the glove box down by releasing the stop.
#21 of 97 Trailblazer heat blows cold on the driver side
Nov 26, 2007 (6:32 pm)
I have a 2002 Trailblazer that the heat only works on the passenger side. No matter where the driver temperature lever is set, the heat blows cold on the driver side. I am told the left heat sensor need replaced. My question is: Where is the left heat sensor located and how do you replace it?
#22 of 97 Re: Trailblazer heat blows cold on the driver side [mtt2002]
Nov 30, 2007 (5:20 am)
Reference my post: Trailblazer heat blows cold on the driver side.
Now the dealer is telling me the heater control module needs replaced. To do so he claims the dash and steering column need to be removed which is why they want $600 to do the job. Does this sound right? It seems you should be able to pull the part of the dash that surrounds the radio, climate control, and instrument cluster without the steering column. I assume the heater control module is located behind the climate control levers. Is that correct?