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Chevrolet Monte Carlo Heat and AC Problems

8 messages,  Last post on Jan 01, 2012 at 11:45 AM

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What is this discussion about? Chevrolet Monte Carlo, Coupe

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#1 of 8 airconditioner compressor 2005 Monte Carlo LT by claxon

Mar 10, 2009 (5:01 pm)

when should compressor run? Mine runs when controll is on floor .

#2 of 8 climate control by bdbowtie

May 16, 2009 (10:59 am)

:i have a 2005 monte carlo when i have the ac on i get heat out of the driver side and cool out of the right what can i do to fix :

#3 of 8 04 Monte Carlo climate control by the1stwolfe

Sep 06, 2010 (6:52 pm)

My driver side dual control wont heat. the pass side works fine. I cant hear the actuator respond but the pass side i can hear. I unscrewed the actuator and removed it from its post, watched it work for a while, then it quit working. I unplugged it and tested it with a 12 volt batt charger, worked flawlessly either direction. I was able to grab the post on the temp valve "door" and turn it easy enough so i think. Whats next? The climate control unit bad maybe? Kinda where i'm leaning. I even removed the pass side to see how it responded and it worked without fail, where the driv side worked a while then failed. Hum, any good ideas to help my dilemma?

#4 of 8 Re: 04 Monte Carlo climate control [the1stwolfe] by montecarl02

Sep 24, 2010 (8:27 am)

Replying to: the1stwolfe (Sep 06, 2010 6:52 pm)
Check ground connections, and make sure all connections are solid. Ecspecially since it worked great when you took it out and hooked it up to an external 12v source. Also make sure that the connections are good all the way back to the source. You can also verify by switching them, that way you know for sure it's only the driver side control.

#5 of 8 2001 Monte and the factory problems impala also by lumpy67

Aug 17, 2010 (12:05 pm)

I have a 01 Monte LS problems I found so far..
 
Heating controls some settings don't work (no fan control).
changed ACDELCO Part # 1580571 about $30 (OK now)
 
Rear defrost not working.
Soldered the wire back on the rear window grid (OK now)
 
Wipers parking wrong
Bent a tab down on the wiper motor assembly (OK now)
 
Wiper had no intermittent functions or low speed.
I changed a diode, you can also but pulse module (OK now)
 
No A/C, low/high beams come on and stay on when started, security light on(car starts fine), keyless entry not working, headlights turn off while driving (whenever), ...Replaced the BCM (ok now)
 
turn signal not working Resoldered the hazzard switch (ok now) you can also relpace the switch
 
thansmission shifting bad, then lost some gears (replaced shift module (ok now)
 
I still like this crap wagon 100,000 + miles
 
Don't get fooled

#6 of 8 Re: 2001 Monte and the factory problems impala also [lumpy67] by lumpy67

Aug 17, 2010 (1:05 pm)

Replying to: lumpy67 (Aug 17, 2010 12:05 pm)
The cat also failed causing a huge loss of power, and also killed my O2 sensor closest to the engine. Replaced both items (ok now)

#7 of 8 02 Monte Carlo SS rear defrost not working by rickyttype

Dec 30, 2011 (10:41 am)

about 2 months ago my rear defrost quit working. the light on the dash would come on but the window wouldn't clear. I found one of the tabs broken on the rear window. I repaired it and it still won't work. I took my meter to check for 12 volts on the grid. I checked voltage across the grid from tab to tab and got no voltage. Am I checking this right? where do i go nect?

#8 of 8 Re: 02 Monte Carlo SS rear defrost not working [rickyttype] by lumpy67

Jan 01, 2012 (11:45 am)

Replying to: rickyttype (Dec 30, 2011 10:41 am)
i would check the voltage between both wires with 1 wire not connected to the grid, and the rear defrost on.. should be 12v
 
if you have 12v i would test the ohms on the rear grid with on wire off......it should not read open.

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