Blower works but no heat.

Discussion in 'The Bench' started by cray1801, Aug 3, 2004.

  1. cray1801

    cray1801 Too much is just right.

    I know I don't need any heat right now but I'll need some in a few months. I've got no heat or very little but the blower works fine. How do you go about trouble shooting this problem?

    Things I've checked:
    Radiator cap seals and engine temperature sufficient
    Thermostat functions fine
    Hoses are not kinked

    Maybe I should flush the heater core? anyone have ideas or advice?

    Originally this car had a 350 engine w/AC. Thanks.
     
    cray1801, Aug 3, 2004
    #1
  2. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Heater control valve, is it working? Actual coolant level in the radiator, is it low?
     
    LARRY70GS, Aug 3, 2004
    #2
  3. flynbuick

    flynbuick Guest

    The heater control valve on a 70 lays against the AC compressor and was operated by vacuum.
     
    flynbuick, Aug 3, 2004
    #3
  4. cray1801

    cray1801 Too much is just right.

    How do you check the heater control valve? I was suspicious of this...

    Flaps seem to work as well on the heater.

    Coolant level o.k.
     
    cray1801, Aug 3, 2004
    #4
  5. flynbuick

    flynbuick Guest

    It diverts water to the core. So is the hose from the valve to the core hot?


    I have an extra you can use to test somewhere.
     
    flynbuick, Aug 3, 2004
    #5
  6. cray1801

    cray1801 Too much is just right.

    Not as hot as I thought it should be, I'll check it tomorrow.
     
    cray1801, Aug 3, 2004
    #6

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