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I have a 2002 trailblazer LTZ. with two issues
Asked by galloway Oct 31, 2012 at 07:39 PM about the 2002 Chevrolet TrailBlazer LTZ 4WD
Question type: Maintenance & Repair
I have a 2002 trailblazer LTZ. I’m have two issues. #1 climate control. I have the heater on almost to 90 to keep it blowing hot. As soon as I turn it down in get cold. What’s seems to be the problem? #2 My wipers pause and jump at the intermitting settings. Is the motor going bad? Are both these issues relays?
6 Answers
galloway answered 6 months ago
You can switch between auto and defrost. But it still does it on any setting
John answered 6 months ago
Is it digital? The coldest setting is like 60 or 65 and when you turn it hotter it jumps 5 degrees then goes up in 1° increments till you hit 85 then it jumps to 90? If setting it to its hottest setting makes it blow good hot air then I would have to guess the digital thermometer is broken. Setting it to auto 85° is causing it to cool because the controller is reading its hotter than 85 in the vehicle so it automatically tries to cool it. I would have to assume the thermostat is inside the control unit but I'm not certain on that.
John answered 6 months ago
Also I don't think they are related although anything is a possibility.
Ann3406 answered 6 months ago
My 2002 LTZ is doing the same thing with heat. My wipers also jump and cut out. I was told that it was a problem with that year vehicle from the start that GM refuses to acknowledge along with a TCCM computer module that quits at 60,000 and a GM evaporations emission system flow on non purge GM code P 1441. I read that GM was replacing the lines/gastanks on some vehicles before they reached a certain mileage or before 12/11. My dealer kept pushing me out the door even though you could smell gas with the engine turned off. Hence GM side stepped fixing the vehicle. I heard that 2002 was the first year for the trailblazer and most are lemons that GM will not recall. I purchased mine 2 years ago for top dollar, have put 3,000 into it and am disgusted. The vehicle now slips from a stop on acceleration and the transmssion shop said the transfer case?? may be going. It has 94,000 I am sorry but I will never buy another trailblazer.
Ann3406 answered 5 months ago
I had enough of the GM garages charging me to say hello, then the best they could do was tell me to trade it in. I took it to a local shop and the control panel is shot. Best guess on a holiday weekend is $800 + labor. A used panel or OEM may be available.
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