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2000 Chevy Monte Carlo Air conditioner doesnt work

Tiny
SINGLDAD1956
  • MEMBER
  • 2000 CHEVROLET MONTE CARLO
Air Conditioning problem
2000 Chevy Monte Carlo 6 cyl Front Wheel Drive Automatic

I have had the Air Conditioner checked and the mechanic says the freon is fine and compressor is not froze up yet the compressor will not come on. The mechanic says it seems to be an electrical problem. Do you have any suggestions without me spending hundreds of dollars while he does his "hit and miss" checks?
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Saturday, September 6th, 2008 AT 7:59 AM

3 Replies

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Compressor clutch is controlled by the PCM through the relay, so if the relay is OK test the wires and connectors at the PCM and the compressor, see if there is power at the compressor, if so the coil is bad. Run these test with and without jumping the low pressure cycling switch, that could be gone too!
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Saturday, September 6th, 2008 AT 8:04 AM
Tiny
SINGLDAD1956
  • MEMBER
  • 2 POSTS
I am not familiar with all the parts you refer to. Where can I find a diagram that tells me where all the parts and connections are that you refer to?
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Saturday, September 6th, 2008 AT 8:12 AM
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Clutch coil diode is 10 cm from the plug, the cycling switch is in the A/C line at lower left front of engine compartment, relay is in the bottom of underhood electrical center.


https://www.2carpros.com/forum/automotive_pictures/62217_Pres_Sw_1.jpg

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Saturday, September 6th, 2008 AT 9:49 AM

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