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HOT!! A/c running hot..

Discussion in '2nd Gen Tundras (2007-2013)' started by superdoc1776, Aug 25, 2021.

  1. Aug 25, 2021 at 1:34 PM
    #1
    superdoc1776

    superdoc1776 [OP] New Member

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    When my Air-conditioning is set to max AC it is blowing really hot and it used to be ice cold yesterday. Please help! I already replaced the magnetic clutch relay no improvement.
     
  2. Aug 25, 2021 at 3:29 PM
    #2
    audiowize

    audiowize New Member

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    Was the magnetic clutch relay the problem? Is the compressor engaging?

    If you manually jumper the relay, does the system work properly?

    If you're not on max AC, does cold air come out?
     
  3. Aug 25, 2021 at 3:33 PM
    #3
    FrenchToasty

    FrenchToasty The Desert rat, 6 lug enthusiast

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    Rock jumped up and bit your condenser I bet
     
  4. Aug 25, 2021 at 4:37 PM
    #4
    superdoc1776

    superdoc1776 [OP] New Member

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    @audiowize Replacing the relay didn’t help at all. Slightly cool air comes out when I take it off Max A/C and just put it
    on the furthest cool setting right before Max AC. But not cold in any way. I don’t know what manually jumper the relay means.
     
  5. Aug 25, 2021 at 4:40 PM
    #5
    superdoc1776

    superdoc1776 [OP] New Member

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    @FrenchToasty How can I tell? First time truck owner and newbie at working on vehicles at all…
     
  6. Aug 25, 2021 at 4:42 PM
    #6
    FrenchToasty

    FrenchToasty The Desert rat, 6 lug enthusiast

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    It sounds like your low on Freon. There are safety switches, hi and low, that will not let the compressor actually pump if out of range. Usually Freon is really good at the disappearance act.
     
  7. Aug 25, 2021 at 6:23 PM
    #7
    superdoc1776

    superdoc1776 [OP] New Member

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    Refilled the freon…good to go..thanks y’all!
     
  8. Aug 25, 2021 at 7:02 PM
    #8
    audiowize

    audiowize New Member

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    Freon does leave very, very, very slowly over time. If your too off doesn't last a long time (like years), you'll want to put some leak dye into the system to see where it's escaping.
     
  9. Aug 25, 2021 at 7:05 PM
    #9
    FrenchToasty

    FrenchToasty The Desert rat, 6 lug enthusiast

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    Unless it’s a component leak, which hopefully it’s not most of the time. It’s always the Schrader or the caps, which then means the Schrader is leaking too.
     

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