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[GMCnet] A/C compressor not engaging [message #174207]

Thu, 21 June 2012 14:09

carguy

Messages: 498
Registered: June 2006
Location: Coshocton OH

Karma:

Senior Member

My air conditioner compressor is not engaging. Following the procedure in the maintenance manual I shorted across the terminals on the pressure switch connector and the clutch engages. Per the manual this indicates that the pressure in the line is too low or the switch is defective.

Now my questions:
I'm using DuraCool I'm assuming that the pressure should be 20 -25 psi with the gauge connected to Gauge connection 1 ( see photo http://www.gmcmhphotos.com/photos/misc-gmc-photos/p44570-air-conditioning-clutch-not-functioning.html ). Is my assumption correct?

If the pressure is OK and I need to replace the pressure switch can I remove & replace the switch without opening the line and loosing the DuraCool?

Any comments/suggestions will be appreciated.

Bill Brown
Coshocton OH
'77 Buckeye Cruiser
Change is certain, progress is not

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Bill Brown - '77 Buckeye Cruiser
Coshocton OH
carguybill@sbcglobal.net

[Updated on: Thu, 21 June 2012 14:14]

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[Message index]

		[GMCnet] A/C compressor not engaging By: carguy on Thu, 21 June 2012 14:09
		Re: [GMCnet] A/C compressor noit engaging By: ljdavick on Thu, 21 June 2012 14:23
		Re: [GMCnet] A/C compressor noit engaging By: roy1 on Thu, 21 June 2012 18:46
		Re: [GMCnet] A/C compressor noit engaging By: emerystora on Thu, 21 June 2012 19:09
		Re: [GMCnet] A/C compressor noit engaging By: Mr ERFisher on Thu, 21 June 2012 19:55
		Re: [GMCnet] A/C compressor noit engaging By: roy1 on Fri, 22 June 2012 10:38
		Re: [GMCnet] A/C compressor noit engaging By: emerystora on Fri, 22 June 2012 11:18
		Re: [GMCnet] A/C compressor noit engaging By: roy1 on Fri, 22 June 2012 11:44
		Re: [GMCnet] A/C compressor noit engaging By: emerystora on Fri, 22 June 2012 13:11
		Re: [GMCnet] A/C compressor noit engaging By: Don A on Fri, 22 June 2012 14:26
		Re: [GMCnet] A/C compressor noit engaging By: Billy Massey on Sun, 24 June 2012 07:28
		Re: [GMCnet] A/C compressor noit engaging By: Ken Burton on Fri, 22 June 2012 16:39
		Re: [GMCnet] A/C compressor noit engaging By: emerystora on Fri, 22 June 2012 16:52
		Re: [GMCnet] A/C compressor noit engaging By: Bruce Hart on Fri, 22 June 2012 17:49
		Re: [GMCnet] A/C compressor noit engaging By: Carl S. on Fri, 22 June 2012 20:25
		Re: [GMCnet] A/C compressor noit engaging By: Mr ERFisher on Thu, 21 June 2012 14:46
		Re: [GMCnet] A/C compressor noit engaging By: emerystora on Thu, 21 June 2012 14:52
		Re: [GMCnet] A/C compressor noit engaging By: Mr ERFisher on Thu, 21 June 2012 14:54
		Re: [GMCnet] A/C compressor noit engaging By: jhbridges on Fri, 22 June 2012 06:19
		Re: [GMCnet] A/C compressor noit engaging By: roy1 on Fri, 22 June 2012 10:44
		Re: [GMCnet] A/C compressor noit engaging By: jhbridges on Fri, 22 June 2012 12:49
		Re: [GMCnet] A/C compressor noit engaging By: roy1 on Fri, 22 June 2012 16:00
		Re: [GMCnet] A/C compressor noit engaging By: emerystora on Thu, 21 June 2012 14:50
		Re: [GMCnet] A/C compressor noit engaging By: george beck on Sun, 24 June 2012 18:25
		Re: [GMCnet] A/C compressor noit engaging By: James Hupy on Sun, 24 June 2012 18:40
		Re: [GMCnet] A/C compressor noit engaging By: emerystora on Sun, 24 June 2012 18:42
		Re: [GMCnet] A/C compressor not engaging By: C Boyd on Thu, 21 June 2012 15:07
		Re: [GMCnet] A/C compressor not engaging By: emerystora on Thu, 21 June 2012 15:45
		Re: [GMCnet] A/C compressor not engaging By: C Boyd on Thu, 21 June 2012 16:08

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