Blower speed?

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.

Wednesday, July 8th, 2009 AT 7:33 AM

5 Replies

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

WJV1

MEMBER
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

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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+1

Wednesday, July 8th, 2009 AT 9:40 PM

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)

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.