Blower speed?

Tiny
WJV1
  • MEMBER
  • 2002 DODGE DURANGO
  • V8
  • 2WD
  • AUTOMATIC
  • 157,000 MILES
MY Ac only works on high and it blows very cold but it does not work on low or medium, what are some of the things I can check to keep from payng a Hugh AC repair bill.
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Wednesday, July 8th, 2009 AT 7:33 AM

5 Replies

Tiny
BUDDYCRAIGG
  • MECHANIC
  • 2,262 POSTS
Are you talking about the blower fan only works on high?
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Wednesday, July 8th, 2009 AT 2:48 PM
Tiny
WJV1
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  • 2 POSTS
Yes the switch that turns the air up higher it only blows in the high position.
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Wednesday, July 8th, 2009 AT 9:06 PM
Tiny
BUDDYCRAIGG
  • MECHANIC
  • 2,262 POSTS
4 things it could be the problem
a fuse.
The blower motor relay
the blower motor resistors
the blower speed switch.

I emailed you a schematic,
it's a 99 full sized pickup, but I think it will be the same.
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Wednesday, July 8th, 2009 AT 9:40 PM
Tiny
AMEGILL
  • MEMBER
  • 1 POST
  • 2001 DODGE DURANGO
  • V8
  • 4WD
  • AUTOMATIC
  • 97,360 MILES
Heater blower only works on high speed
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Saturday, August 8th, 2020 AT 10:56 AM (Merged)
Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Check for power getting to the resistor, on the heater plenum, the resistor then plugs into the blower, if power is present, replace resistor, if no power, check fuse, and or switch.
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Saturday, August 8th, 2020 AT 10:56 AM (Merged)

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