what does a Blower Moter Resister do

Asked by Feb 08, 2017 at 11:45 AM about the 1995 Chevrolet C/K 1500 Silverado Standard Cab LB 4WD

Question type: Maintenance & Repair

my 95 chevy truck K1500 5.7  heater puts out just warm almost cool air from
the heater . I can run water through the core  pretty well . So its not pluged
up. what could  i do to make it throw hot air . I,ve also changed the
thurmustat.

2 Answers

73,845

Purge the cooling system of air pockets. The blower motor resistor controls the different speeds of the blower motor. If the resistor goes out, the blower motor does not work.

26,605

You can have what appears to be good flow through a heater core, but still no heat, because the blockage can be progressive, meaning water can flow in and through to the outlet easily in the first few rows, yet most of the core is blocked off so little heat exchange takes place. But assuming you have a good core, you have to check that the coolant flow from engine is good, that water pump isn't getting weak, and also check that the blend door is working. You should hear the little plastic flap moving when you cycle between hot and AC.

Your Answer

Chevrolet C/K 1500 Experts

  • #1
    Andrew Olsen
    Reputation
    3,620
  • #2
    John Saffrahn
    Reputation
    2,570
  • #3
    Rowefast
    Reputation
    2,170
View All

Related Models For Sale

Used GMC Sierra 1500
258 Great Deals out of 10,818 listings starting at $2,995
Used Ford F-150
498 Great Deals out of 10,172 listings starting at $3,450
Used Dodge Ram 1500
51 Great Deals out of 534 listings starting at $1,300
Used Chevrolet Tahoe
6 Great Deals out of 726 listings starting at $4,995
Used Toyota Tacoma
39 Great Deals out of 880 listings starting at $5,990
Used Chevrolet Camaro
3 Great Deals out of 809 listings starting at $13,404
Used Chevrolet S-10
8 listings starting at $5,495

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.