No electrical power at AC connector

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OKBOWLER
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1991 Oldsmobile 98, 112k miles, 3.8L

There isn't any power at the connector that plugs into the A/C compressor regardless of control/temperature/defrost settings. For as much of the wiring I can see, nothing appears damaged, burnt, or severred. Heat and fan all work fine. Where do I start looking? Thanks.
Jun 29, 2007 at 10:50 PM
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ROCKWOOD84
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i would try the a/c fuse the the relay
Jul 22, 2007 at 4:21 PM
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DEK
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[quote:550fe1f3a8="okbowler"]1991 Oldsmobile 98, 112k miles, 3.8L

There isn't any power at the connector that plugs into the A/C compressor regardless of control/temperature/defrost settings. For as much of the wiring I can see, nothing appears damaged, burnt, or severred. Heat and fan all work fine. Where do I start looking? Thanks.[/quote:550fe1f3a8]

Pull the plug on the Pressure Cycling Switch (It'll be plugged into the side of the Accumulator..silver canister). Take a paperclip and insert the ends of it into the plug to short out the circuit. If the compressor starts, then you have a low charge...if it does not start you have another problem which could be a bad compressor clutch.
Jul 26, 2007 at 8:23 PM