Medium and Heavy Trucks
Have Truck Repair Questions? Ask an Expert
First crimp off at least one heater hose going into cab just in case heater control valves are leaking by internally.
Did you evacuate before charging ac?
Did you change expansion valve?
Stick a temp probe in a dash vent with blower motor on high,,run engine at 1000 rpm with engine fan on manual for 10 minutes, What are your pressures high and low and what is duct temp?
Do you have a sleeper ac unit?
Do you have a full grill condenser or the smaller one in front of radiator?
How fast is ac clutch cycling? minute,,seconds
I'll be getting off for today so once you have this info let me know, I'm usually around during daytime hours.
Do you still need assistance with this?
If you don't have all the info give me what you have so we can get this fixed
I'm just following up to see if issue is resolved or you need more info?
Let me know