My ac is blowing out hot air

Asked by Jun 25, 2018 at 11:07 AM about the 2010 Mazda Tribute

Question type: Maintenance & Repair

I have replaced my ac compressor and put
refrigerant in it. The engine idles like it’s supposed
to whenever the ac is turned on. I was told it could
be the relay but I just want another opinion. Other
mechanics I’ve taken it to has said they don’t know
what’s the problem. I don’t wanna keep buying
parts and I still have no ac. I’m pregnant and need
this fixed ASAP!!!

1 Answer


Verify you are getting clutch engagement. If not either it is not getting power or the clutch gap is not within specification. Hopefully you have a gauge set. If the clutch is working then have a look at the operating pressures. They will vary with ambient temperatures. If not within specification or unusually high or low then there may be a restriction in the system such as the expansion valve or condenser. It's always good practice to at least pump the system down and put a new receiver drier in. I am assuming that the interior flaps all work well given the age of the vehicle. Some vehicles have a self diagnostic mode for the climate control to do flap tests.

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