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Blower Fan

Tiny
BRIAN374
  • MEMBER
  • 2002 MERCURY MOUNTAINEER
  • AWD
  • AUTOMATIC
I have a 2002 Mercury Mountaineer. Blower fan turns off and on at any speed, for about 10 seconds each time (either a/c or heat). I replaced the blower motor resistor, but problem is still there. Could it be the blower motor?
Monday, June 13th, 2011 AT 11:33 AM

3 Replies

Tiny
DOCFIXIT
  • MECHANIC
  • 18,828 POSTS
Possible next time it quits check for voltage at blower if present then motor
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Monday, June 13th, 2011 AT 12:47 PM
Tiny
BRIAN374
  • MEMBER
  • 6 POSTS
When it quits, I still can hear the blower running. But no air flow coming from the vents, or at floor level. So I'm think it is still running somehow, but no air being forced out for those 10 seconds. Puzzles me.
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Monday, June 13th, 2011 AT 12:59 PM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
I would also verify the ground signal at the blower motor. That's the other half of the circuit.
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Monday, June 13th, 2011 AT 1:00 PM

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