Question about 2000 Cadillac Escalade

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Air conditioning problems...air flow nothing cool

Tried to chrge the sysytem ..no go...was not the issue...but noticed the compressor kicks on and of ...only runs for 5-9 seconds...then disengages the clutch on the pump and stops spinning...??

what to do?

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You need to double check the refridgerant charge - system holds anywhere from 2 1/2 to 3 pounds of R134a refridgerant. If you are sure refridgerant charge is correct I suspect it is a low side pressure cycling switch problem. Located on the passanger side towards the back of the engine on the silver accumulator - unplug connector; jump the two terminals together - if a/c compressor clutch comes on and stays on replace the switch.

Posted on Aug 02, 2009

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