Hey guys! Its almost summer and i would like me ac in my car to be as cold as possible, is there any…

audiman

Hey guys! Its almost summer and i would like me ac in my car to be as cold as possible, is there any harm in insulating my ac lines under the hood of my car so the lines don't absorb the engine heat? Which lines should i insulate or not insulate high pressure or low pressure? I will use the split pipe foam from home depot and they put some zip ties over it.

Comments (6)
No. 1-6
audiman
audiman

yeah i just left it as is dont want it to freeze up plus 35 degrees is plenty cold and that was on a 90 degree day

guyonearth
guyonearth

You can't get it any colder than that, you'll freeze it up solid and get no air at all.

audiman
audiman

Still blows ice cold for a 14 year old Gmc Yukon Denali

Believe231
Believe231

Well any colder than that, and you may start to get ice build up issues on the evaporator, :-D

audiman
audiman

Ok thanks for the info! right now the air coming out of the vents with the ac on full blast is at 35 degrees Fahrenheit, but i am always trying to get it colder and more efficient!

Believe231
Believe231

More than likely you won't notice any real difference as all the cooling action occurs in the evaporator housing. The refrigerant in the lines are under pressure, especially the high side, so it's best to let it be exposed to atmosphere to let off the heat from the lines. The low side will be cold and can sweat, so need that to be able to evaporate off as well after shutdown. Better to just make sure the a/c system is operating as it should, have the air vent outlets temp checked with a temp gauge for consistency, there are cleaners that can be used for cleaning the inside of the hvac system, and if you have a cabin filter, keep it serviced.