Question about 2000 GMC New Sierra 1500

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Ac/heater blower motor willnot work on lower speeds

1996 ac/haeter blower motyor will not work on lower speeds and wiring gets hots

Posted by Anonymous on

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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Brian032472
  • 150 Answers

SOURCE: Blower Motor Resistor for front AC/Heater

Under the passanger side of the dash there is a black cover which you remove with 2 bolts I think they are 6 or 8 mm. Once you have pulled the cover down you can see what looks like a round black plastic housing. In the middle of the housing is the resistor assembly. I would call your local parts store and give the follow info. year make model and a/c type ie; automatic (set to temp) or manual (hot to cold) hope this helps. This is the OE part # 89019100 and OE cost is approx. 55.00

Posted on Nov 04, 2008

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  • 1 Answer

SOURCE: Fan blower motor

The Canyon has an inherint problem with the Fan Power cable being loose. When I say loose...I'm saying that you need to adjust the wires and then take a zip strip to tighten it up.

Passenger side under the dask are 2 cable hook ups. the one on the farthest right (Only 2 wires going to the plug) is the fan power cable. Jiggle it while the fan is on position number3 so you can hear when it comes on!!!

Posted on Mar 11, 2009

  • 11 Answers

SOURCE: Blower motor only works on HI speed

I had the same problem with my 2002 Safari. The blower resistor/relay pack (mounted on the ductwork below the blower motor) in the engine compartment went bad- poor design. A replacement unit (about $120) is available from the dealer. Removal of the coolant overflow / WWasher bottle is required, as well as enlarging the the mounting opening. A Chilton 1985-2005 Astro/Safari manual has the diagrams...

Posted on Jun 08, 2009

  • 534 Answers

SOURCE: heat/ac blower motor works on high. intermittent on other speeds.

Check the blower resistor pack - usually located in the heater air ducting in the blower fan airflow. Check for loose connections and open circuit resistors on the unit.
If speed 4 works always, its unlikely to be the blower motor ground connection.

Posted on Aug 11, 2009

ministock48
  • 258 Answers

SOURCE: 1996 GMC blower motor only works on high speed.

more than likely yes the resistor

Posted on Oct 22, 2009

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here is what my book says:
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