air conditioner compressor not turning. broken or is there a module or fuse to replace?

Asked by judygolen Aug 10, 2014 at 01:00 PM about the 2003 Mercury Grand Marquis

Question type: Maintenance & Repair

air conditioner compressor stopped turning. relay, fuse, module or just broke?

7 Answers
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Trippmeister answered 10 years ago

Low on freon, or presssure cut-off switch bad. Easily replaced. LS has 4 wires, GS has 2 wires. On the GS shorting the wires will tell if the switch is bad. Not sure on the LS which wires.

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5,425

Trippmeister answered 5 years ago

you will have to get the leak fixed, and system evacuated and re-charged

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Deshon answered 5 years ago

Am haveing same problem for 9o grand marquis has freon in and new blower resistor and blend door

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Trippmeister answered 5 years ago

Check/replace the over-pressure cut off valve. It sticks right up on top, easy to get at and replace.. Has a schrader check valve, I think (saves freon) You can check it by shorting the wires together, and see if the compressor runs.

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