My '02 Trailblazer LTZ has an "issue" with the AC not working when the OAT is indicating low. The temp shows all over the scale...from -26 C to +20 (real temp). I've read that this is a common problem on these trucks. Help!
'02 TB outside temp sensor not working
- Thread starter wrecks2020
- Start date
Wooluf1952
Member
WelcomeIn case you haven't heard:
http://gmtnation.com/f5/welcome-gmtnation-com-heres-story-226/
It is fairly common. IIRC, a new OAT sensor is around $5 from the dealer.
Agreed. It's so cheap from the local dealer that they can often beat mail order. Available also at your local aftermarket parts stores if you have an aversion to setting foot in a dealer. I've been abused, so I have a full-blown phobia about dealers. YMMV.
And trivial to change out - near the hood latch. Buy the part, then search for something that looks the same.
And trivial to change out - near the hood latch. Buy the part, then search for something that looks the same.
Wooluf1952 said:
In case you haven't heard:
http://gmtnation.com/f5/welcome-gmtnation-com-heres-story-226/
It is fairly common. IIRC, a new OAT sensor is around $5 from the dealer.
what happens if I disconnect it? Will that cause any problems?
Denali n DOO
Member
- May 22, 2012
- 5,596
wrecks2020 said:
not sure if yours is same as mine but when I had that issue i reset the system by holding; "fan mode-front defrost-rear defrost" all at the same time. When I did this the outside temp went up to 41 and slowly decreased 1 degres at a time until it matched the real outside temperature. No issues since.
Denali n DOO said:
I tried this and the gauge reset itself to -36C. I started it this morning and it was reading +10 and then went to +6C so the air works now....WTF?
wrecks2020 said:
The sensor is intermittent. I took mine apart and found a cracked connection to the thermistor. Tilted one way, it read fine - tap it, it doesn't.
