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Is blower and air conditioning pump on the same fuse or cycle together

Tiny
TERRY MORRIS2
  • MEMBER
  • 2002 FORD EXPEDITION
  • 5.4L
  • V8
  • 4WD
  • AUTOMATIC
  • 172,669 MILES
I turn heater on and switch it either. Setting, you can hear the air containing pump making bad noises. And motor tries to shut off. Switch the blower motor off, and everything is fine. I need a new A/C system I already know this, but what can I do to bypass this so I have my heater its cold.
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Saturday, December 21st, 2019 AT 6:04 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi,

The A/C compressor will engage in the defroster setting regardless of the temperature requested. Does it also happen when you just turn the heater on at floor level? As far as the A/C issues, it sounds like the compressor is locked up. Have you checked for that? If it is, then either the compressor needs replaced or you can get an A/C bypass pulley. Basically, you remove the compressor and bolt on a bypass pulley in its place.

Let me know.

Joe
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Sunday, December 22nd, 2019 AT 12:03 AM

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