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Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 23821
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
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2010 explorer 4.6 a/c blows hot at a stand still. Revving

Customer Question

2010 explorer 4.6 a/c blows hot at a stand still. Revving motor makes no difference. What could the issue be?
Submitted: 2 years ago.
Category: Ford
Expert:  Jan Andersson replied 2 years ago.
Hi, is it blowing cold when driving down the road? That could mean the condenser fan is not working, the refrigerant gets too hot, and the pressure climbs above the safety switch treshold, and the switch then turns the compressor off. You could try cooling the condenser with a garden hose to see if that makes a difference, while its running. See if the fan turns, and try to feel if it actually moves a lot of air or if its too slow. In cases like this if the fan works, I first hook up the pressure gauges to see what the low side and high side pressures are. That is the "peephole" into the inner workings of the system, without it you'd just be guessing. Let me know if you have access to AC pressure gauges. Some shops offer Free AC checks, which are almost worthless but if they would agree to check the opreating pressures at least, then you would have something to go by.