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How can you get the AC clutch on a 1985 Pontiac that is low on freon to kick on?


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Wiki User
2015-07-15 18:47:46
2015-07-15 18:47:46

you can jump the low presur switch , but it can damage the a/c compessor which cost about 200 dollars to replace


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behind passenger side front kick panel

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I just did a entire ac replacement for the 1990 gmc sierra. You can use a test light to test the plug that is located at the top of the compressor. If it does not light up, you more than likely have a bad electronic dash control. Most importantly the clutch will not engage if the freon is low, so check your freon levels before you do anything. Hope this helps.

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Shut the throttle. Pull in your clutch. Kick the gear lever down. Let out the clutch. More advanced: Shut the throttle. Pull in your clutch. Kick the gear lever down. Blip the throttle - let out the clutch.

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It should not run with no freon. There is a low pressure switch to keep that from happening.

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