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Heater Question

Discussion in '1969-1972 K5 Blazer | Truck | Suburban' started by k5baby, Nov 23, 2005.

  1. k5baby

    k5baby Registered Member

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    Location:
    Prattville, Alabama
    Putting the 72 back together I noticed 3 small rubber hoses going into the firewall together to a heater valve. My question is where do they hook up to in the engine compartment? :confused:
     
  2. RustyParts

    RustyParts 1/2 ton status

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    Location:
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    The only 3 small hoses coming through the firewall on my Jimmy go to the windshield washer nozzles and the water tank on the drivers fenderwell.

    My heater controls are all operated by cables.

    Hope this helps.

    DCP_2843.jpg
     
  3. vtblazer

    vtblazer 1/2 ton status GMOTM Winner

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    Location:
    Central VT
    If you've got A/C then they go to engine vacuum.

    Your heater control will have three nipples on the back side under the dash.
    Dig into your manual, it'll show you where they all go.
     
  4. k5baby

    k5baby Registered Member

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    Those are definiteley the hoses I was talking about. I just caught a glance at where they were going inside the firewall and saw some type of valve and assumed it had something to do with the heater.
    I don't have a/c, so now I know where they go. The windshield resevoir was dry rotted so I tossed it last year and still have forgotten to get one. Thanks.
    Here's the latest pic.

    blazer side.JPG
     
  5. RustyParts

    RustyParts 1/2 ton status

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    Man O man, I'll be glad when I get mine in the shape you got yours. Sure looks nice. I love a new paint job.
     

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