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heater relay didnt fix it, what now?

Discussion in 'The Garage' started by cochino12, Dec 13, 2004.

  1. cochino12

    cochino12 1/2 ton status

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    My heater only has two settings off and really low, I thought it would be the heater resister relay but that didnt help. Any ideas what to try now? Shouldnt be the fan if it blows right?
     
  2. 3 on the tree

    3 on the tree 1/2 ton status

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    Could be a wore out fan motor. Try running a straight hot line to the fan, if it blows strong, then I would bet on the switch itsself.
     
  3. cochino12

    cochino12 1/2 ton status

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    I'll try that, I figured if the fan worked all It would be fine. Thanks
     
  4. K5HIGH

    K5HIGH 1/2 ton status

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    Whats Up Cochino12 You Refered Me To This Site From Full Size Chevy Thanks Anyways Im Pretty Sure It Is The Blower Itself I Work At A Chevrolet Dealer And This Problem Often Usually If Its The Switch It Will Run Off Or On High Sounds Like The Motor. Chk It With A Hot Wire Like The Other Guy Recommended. If It Blows Slow Replace The Motr If Blows High Replace The Switch Good Luck . How About Some Help On My Question About The Shocks On My 88? Thnks
     
  5. cochino12

    cochino12 1/2 ton status

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    Hey man I didnt even see this post. I replaced the blower and it's really not any better. The switch was replaced just a little while ago, I am so frustrated with this damn heater, and it's cooold too. I missed the question about the shocks?

    Adam
     
  6. R72K5

    R72K5 Banned

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    3 on the tree- nice name hehe :P


    resistor spring set, mounted out under hood in the heater box


    in my 84 it has hi and thats it,

    my springs are burnt im gonna swap in another set of springs i have laying around, about a three minute job to replace them, two little screws and the wires plug


    good luck
     
    Last edited: Dec 21, 2004
  7. R72K5

    R72K5 Banned

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    my bad ok i just pulled my spring set and the springs are fine, i noticed that someone removed the ground wire from the blower motor housing screw to the firewall screw! so im making one for it now and gonna see if i have fan speeds then

    i bet i do

    check for your ground wire on yours, make sure screws are tight around blower motor
     
  8. azblazer

    azblazer 1/2 ton status Premium Member

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    Adam...have you tried replacing the fan motor relay mounted on the a/c evap box...behind the accumulator on the evap box....

    BTW: Can't have the 2wd i located in montrose...

    DW
     
  9. blackls1z

    blackls1z Registered Member

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    I had the same problem with mine. After replacing the motor, switch and relay it ended up being the resistor. Works fine now.
     

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