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latvius
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Thx for the sounding board, will update this post if I find anything worthwhile 
A/C Doesn't blow cold anymore
- Thread starter latvius
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Chubbs
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Any updates on the AC issue?Thx for the sounding board, will update this post if I find anything worthwhile
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latvius
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Well it was working fine, but I went on vacation for 10 days and on the drive home the A/C temp kept fluctuating like it was trying to calibrate. Maybe it was I'm splitting daily drivers with a Mustang I bought so I have not driven it since the ride home.
tahoeroy
TYF Newbie
You may need to replace the 2 climate sensors in the front. Especially the one on the passenger side under the turn signal. I replaced both and my air is ice cold again.........
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latvius
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Ahhhhh, I did not know those existed, thanks for the info and pics!!
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latvius
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I replaced one sensor, still blows about 60 degrees then goes up to 70 and goes back and forth. I just got the second one in the mail and will put it on. Meanwhile my alternator took a dump so I ordered one of these
https://www.dcpowerinc.com/fit/Chevrolet~Tahoe~2005~5.3L-V8/8237-185-oem.html
https://www.dcpowerinc.com/fit/Chevrolet~Tahoe~2005~5.3L-V8/8237-185-oem.html
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latvius
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FYI those two sensors are different, ask me how I know . I reordered the one by the blinker. While waiting for the new alternator I worked on detailing the engine after watching ChrisFix videos on youtube.
. I reordered the one by the blinker. While waiting for the new alternator I worked on detailing the engine after watching ChrisFix videos on youtube.
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latvius
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Alternator came in from DCpower and the wire post looked a little off. Looks like Fedex guy dropped it pretty good. Had to ship it back to Cali from Florida...
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latvius
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Alternator installed, and both front sensors replaced. Still not right.
I pulled the blend door stepper motor and manually mode sure the blend door was in the correct position, still luke warm air.
I put the gauges back on an 52psi on the low side and 225 on the high side.
I pulled the blend door motor off an manually moved the door so I know it is in the correct position.
I found this image on another site and my dryer is not cold anywhere. According to the pic it should be...
The rear air is about 10 degrees cooler than the front.
I pulled the blend door stepper motor and manually mode sure the blend door was in the correct position, still luke warm air.
I put the gauges back on an 52psi on the low side and 225 on the high side.
I pulled the blend door motor off an manually moved the door so I know it is in the correct position.
I found this image on another site and my dryer is not cold anywhere. According to the pic it should be...
The rear air is about 10 degrees cooler than the front.
Last edited:
M1Gunner
Full Access Member
they say 'dryer' but it's true name is an accumulator.
I have a question first before I get into other specifics (I'm assuming your refrigerant levels are correct and the proper amount of oil is in the system) has any work beek done on this ac system, specifically, the replacement of the orfice tube?
You say it's +\- 10 degrees cooler in the rear... what temp would you say that is?
I have a question first before I get into other specifics (I'm assuming your refrigerant levels are correct and the proper amount of oil is in the system) has any work beek done on this ac system, specifically, the replacement of the orfice tube?
You say it's +\- 10 degrees cooler in the rear... what temp would you say that is?
