A/C compressor not turning on?
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When the charge is just low you will normaly see the clutch cycle off & on, unless it is pretty much dead empty. jumping the switch is a good quick test off the electrical system. if the clutch kicks on, the switch is bad or system is empty. if nothing kicks on, it's time to get electrical. if you find the system is empty, I would suggest vacuuming the system out unless you are just checking for leaks. just pumping freon in will limit the preformance.
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One more thing to think about before you call it low on coolant. The connector on top of the a/c compressor at the rear. It's a round 2 pin connector. That is a high fail part. Turn the a/c on max, high fan. Go out and wiggle the crap out of that connector. I bet your compressor will kick on.
If it does, the connection just needs to be cleaned and tightened up. You could take a chance and crimp the female connectors a tad, and hope for the best, you could replace the connector.
I just took the red lock out of the face of the connector, took a few 3/4 inch long strands of wire, bent them in a U shape, and put them in the female end hanging half in and out of the connector. Then reinstall the lock and it will hold the copper strands in place. That one strand of copper will make all the difference in the world, and you shouldn't have any more connection problem. Hope that helps.
If it does, the connection just needs to be cleaned and tightened up. You could take a chance and crimp the female connectors a tad, and hope for the best, you could replace the connector.
I just took the red lock out of the face of the connector, took a few 3/4 inch long strands of wire, bent them in a U shape, and put them in the female end hanging half in and out of the connector. Then reinstall the lock and it will hold the copper strands in place. That one strand of copper will make all the difference in the world, and you shouldn't have any more connection problem. Hope that helps.
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i dont mean to hijack your thread but i used this one to diagnose my own ac system that worked last summer but come spring it wasn't working, i jumped the low preasure sensor ac compressor kicked on so i bought some r134a and charged it to 45 psi now the ac works but it doen't seem as cold as it should be. if i bump the idle up to 1000-1500 the preasure drops down lower, my question is what psi should our systems be charged to?
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