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'14 mack cxu613 day cab, a/c is freezing up on the low side from the compressor to the evaporator It's a bitch to reach on the firewall Blowing extremely cold air (single digits) until it.
The leak is from the evaporator, you can remove the evaporator/heater core assly without removing the the whole hvac unit Can i remove that ductwork on the right side of console to get to the evaporator filter and to clean out a blocked evaporator drain Clamp the heater hoses and remove them from the core, recover the refrigerant and removed the lines and exp
Mack truck evaporator removal procedure explained evaporator leaks and clogged drain lines commonly cause hvac inefficiency in mack truck cabins
To remove the evaporator, first disconnect the battery and evacuate refrigerant safely Access the evaporator by removing the dashboard or hvac housing. Either you don't have enough air flow over the evaporator , or you have heat leaking into the system (duct work) Over charging a system will reduce the effective area of the condenser, and raise the pressure causing more heat in the refrigerant that can't be shed by the reduced effective area of the condenser!
If a leak is found, continue to the service procedure below to replace the evaporator, blower/fan assembly (if necessary) and thoroughly clean the interior of the evaporator case. Looking at you post i was before considering how an undercharged system would make the compressor cycle to much Will and overcharged system make the compressor cycle to much, also will overcharged system freeze up the evaporator I was told the clutch cycles to prevent the evaporator from freezing up, i do not know if this is true.
Blows good and cold at idle.62 degrees
As soon as you start driving down the rd.its starts warming up.82 degrees.i cleaned evaporator install new cabin filter.checked freon and that was good.recirculation door works properly.cleaned bugs out from c. 1 now viewing page 1 [50 messages per page] Mack cxu613 climate control discussion in ' heavy duty diesel truck mechanics forum ' started by 95chevluv, jun 12, 2021. I have a 99 cx613 vision and my ac barely blows out and not cold
I have water leaking all over my carpet Drain hose on firewall not draining much at all
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