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Chevy TrailBlazer Climate Control Questions



  • jersybehrjersybehr Posts: 1
    My girl friend has a 2003 Trailblazer with manual controls and no rear evap. When the vehicle is started (doesn't matter if it is a cold or hot start) the AC blows cold for about 10 to 20 seconds, goes warm for 5 to 10 seconds and then blows cold the rest of the time when the truck is moving. At idle it only blows cool. I have by-passed the low pressure switch but the AC compressor still cuts out during that initial startup period.

    Any input would be appreciated, Tim
  • kmgolden85kmgolden85 Posts: 1
    I bought an 04 trailblazer last summer and actually worked great..turned it on last week and it was warmer air..bought some freeon put it in but wouldn't take the whole can .. I noticed my temp said -33 degrees lol im in jersey no way its that cold..then it would jump back up to 49 when its 80 it wont go any higher then 49 but ill grt my ac back until it drops back down to negative .. what I wanna kno is there a way to reset to system before I change the sensor ?
  • medic93medic93 Posts: 1
    edited January 7

    ejurik said:

    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.
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