Date: Wed, 3 Mar 1999 09:37:14 -0500
From: "Eric Law" <elawnopsamexxx.com>
Subject: Re: AC Clutch


John, You're not going to like this, but it probably means the freon has leaked out. There's a low-pressure switch in the system that will not permit the compressor to engage if there's not enough freon in the system. Eric Law John Cox wrote in message <7bc98h$636$1nopsamprod.itd.earthlink.net>... >The air conditioning compressor clutch on my '87 900 no longer engages when >the switch is activated. I know that the compressor/clutch is OK, because >direct application of 12v to the clutch positive lead causes the clutch to >engage properly. For some reason, I am not getting electrical power to the >clutch. > >I have checked the obvious (no blown fuses), but I do not have a complete AC >circuit diagram, and do not know how to test the AC relay or dashboard >switch. I am reluctant to start indiscriminately start swapping electrical >parts because of the cost involved (it is a Saab, after all) and there may >be electrical components in the system of which I am unaware. > >Any advice would be appreciated, and a circuit description/component map >would be terrific. >Thanks in advance > >Nacra1nopsamhlink.net > > > >

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