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In need of heat

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by Keane, Sep 18, 2001.

  1. Keane

    Keane Registered Member

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    Location:
    Calgary, Alberta, Canada
    Need some help...please!!!

    I replaced my heater core, and fan motor and everything worked ok....for 10 minutes or so! Now the heater wont work! I checked the power wire that connects to the blower motor and there are no volts. Lots of volts at the fuse panel marked "Heater". No volts at the heater connector at the controls. So somewhere in between something gave out. Could it be the heater resistor? If so, where is it located? Anything else??

    Thanks, its starting to get cold up here in Canada.

    Keane

    Smok'em if you got'em....Tires that is
     
  2. JungleBoy

    JungleBoy 1/2 ton status

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    Location:
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    For non-AC trucks, the heater resistor is located inside, on the heater box, on the angled portion of the box just above and rear of the heater core (pass side). It attaches using 2 screws. A good place to check....
     
  3. blazerman

    blazerman Registered Member

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    Location:
    Sacramento, CA
    On an A/C truck it is inside the heater box on front of the heater core.

    72 K5 - 33's on stock susp. and lots of rust! But at least it's payed for!!!
     
  4. Keane

    Keane Registered Member

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    Thanks guys. Found the resistor and looked ok. It looks like the tan wire supplying power to the fan gave out, cause I ran a new one from the fuse panel and the heater works now. I dont know how or what happened, but the wire seems to have gave out somewhere under the dash. Do you think that if the two coiled wires on the resister were touching each other, that the wire would melt? Cause I think I might have hit the resistor when replacing the heater core. THat is the only thing that I can think of.

    Thanks for the help.

    Keane

    Smok'em if you got'em....Tires that is
     
  5. LKJR

    LKJR 1/2 ton status

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    Location:
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    Keane, can you do me a favor or someone else if there's is set up properly, I think your saying that resistor is on the heater core box in the engine compartment to the left of the heater core on the slanted part. (non AC) well if this is the case then that explains the hole covered in tape and some of the cut wires up on the firewall. I could use a good closeup pic of what this is supposed to look like if someone dosent' mind. you can email it to me if you wish.
    thanks guys

    Like em big and topless
    Excuse me...Would you mind removing your import from under my chevy?
     

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