No defrost or vent

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by lwlevens, Mar 21, 2018.

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  1. Mar 25, 2018 #11
    lwlevens

    lwlevens Medium Load Member

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    Well GrapeApe removed some screws like you mentioned and it was the cover for the heater core and nothing else so back to square one.
     
    lwlevens, Mar 25, 2018
    lwlevens, Mar 25, 2018
    #11
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  3. Mar 26, 2018 #12
    GrapeApe

    GrapeApe Road Train Member

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    Not that cover, below that there should be a duct, maybe yours is already missing? If so, where the air blows out of the main case is close to where that flapper is. If you can't fit your hand through it to feel it, maybe a mirror to see if it moves?
     
    GrapeApe, Mar 26, 2018
    GrapeApe, Mar 26, 2018
    #12
    SAR Thanks this.
  4. Mar 26, 2018 #13
    lwlevens

    lwlevens Medium Load Member

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    That's the only cover there. When I took that cover off the floor duct came off with it,felt around for the floor vents or doors but there wasn't anything there.
     

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    lwlevens, Mar 26, 2018
    lwlevens, Mar 26, 2018
    #13
  5. Mar 27, 2018 #14
    GrapeApe

    GrapeApe Road Train Member

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    That's the duct, it's above the cover, not below (sorry, it's been a long time). Those 2 screws should take that duct off, then there is a hole the the area of the X (a little left of that I think) that you can get in to feel/see the door flap.

    If it's not there, that could be your problem. It may have broke and fell down in the heater case.
     

    Attached Files:

    GrapeApe, Mar 27, 2018
    GrapeApe, Mar 27, 2018
    #14
  7. Mar 27, 2018 #15
    lwlevens

    lwlevens Medium Load Member

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    Alright I'll try it again,and get back to you. Thanks
     
    lwlevens, Mar 27, 2018
    lwlevens, Mar 27, 2018
    #15
  8. Mar 27, 2018 #16
    lwlevens

    lwlevens Medium Load Member

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    Didn't get a chance today GrapeApe raining all day here. Probably tomorrow.
     
    lwlevens, Mar 27, 2018
    lwlevens, Mar 27, 2018
    #16
  9. Mar 28, 2018 #17
    lwlevens

    lwlevens Medium Load Member

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    Well GrapeApe your the man did what you said and the actuator wasn't fully moving to close the door. Sprayed with WD 40 move the door and actuator with my hand and defrost knob quite a few times and all is working pretty good now, left the heater duct off for now to make sure it doesn't hang up again. Thanks brother really appreciate it.:biggrin_25514:
     
    lwlevens, Mar 28, 2018
    lwlevens, Mar 28, 2018
    #17
    GrapeApe and uncleal13 Thank this.
  10. Mar 29, 2018 #18
    GrapeApe

    GrapeApe Road Train Member

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    Good deal. It sometimes helps to pull the air lines off those actuators and give them a little squirt of air tool oil.
     
    GrapeApe, Mar 29, 2018
    GrapeApe, Mar 29, 2018
    #18
  11. Mar 29, 2018 #19
    lwlevens

    lwlevens Medium Load Member

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    Ok I'll do that also. Thanks.
     
    lwlevens, Mar 29, 2018
    lwlevens, Mar 29, 2018
    #19
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