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    AC low flow only on long trips

    Your issue is either dirty coil or broken recirculation door. For coil, remove resistor and brush and spray away. For door, remove blower fan and pull out the door that was probably laying on top of it. My issue was a partially dirty coil that would then the assembly to freeze over after an...
  2. T

    AC low flow only on long trips

    Resistor should not affect top speed though, correct? All my speeds work ok and blower still sounds like it’s working when flow goes down. Thanks for the input though I’ll look into it and report back if there’s a fix.
  3. T

    AC low flow only on long trips

    Thank you. I’ve been reading throughout the day and at least one person claimed low coolant can possibly freeze over the coil assembly. I haven’t had any change in performance for a couple years, so I doubt there’s a leak but I’ll reply if I get a successful 8 hour trip with no coil blockage...
  4. T

    AC low flow only on long trips

    I have a long standing problem that is now an emergency as I am planning an 8hr trip with the dogs in a few days. Anyway, in my 2003 2500 5.9 CR, I lose air flow from the vents, but only after the A/C has been on for a couple hours or more. After that, it kind of gets weaker and stronger...
    • Tyler03
    • Thread
    • air conditioning flow blower
    • Replies: 10
    • Forum: Interior

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