Air Conditioning Question

What should the lowside - highside read and which refrigerent do the C5's use.
Thanks,
Mike
i've never messed with the high pressure side of things...I just put two bottles into the low side a few weeks ago after having the condensor off and all is cold now.
I recommend a set of gauges and a thermometer.
You need to find out what is wrong with the system before you risk over charging it (unless you already know the system has a leak...).
It may be nothing to do with the charge...
Having said that, and since you ask, charge is R-134a. My 2001 vert takes 0.68Kg or 1.5lbs to fill. Oil is GM PAG.
A/C air should be at about 50 degrees from the vents after 5 minutes full on with a window rolled down (90 degrees ambient, parked in the shade).
Low side should be around 30-35psi, High side can be anywhere from 160 to 270psi.
If you are convinced system charge is low, (an oil stain may appear where the leak is in the system) I would empty it (slowly as not to lose any more oil)
I would then refill with the correct amount of R134A that also contained a leak fix additive and see how it goes...
But then I might be wrong...I am sure other members will have some thoughts
Good luck
I recommend a set of gauges and a thermometer.
You need to find out what is wrong with the system before you risk over charging it (unless you already know the system has a leak...).
It may be nothing to do with the charge...
Having said that, and since you ask, charge is R-134a. My 2001 vert takes 0.68Kg or 1.5lbs to fill. Oil is GM PAG.
A/C air should be at about 50 degrees from the vents after 5 minutes full on with a window rolled down (90 degrees ambient, parked in the shade).
Low side should be around 30-35psi, High side can be anywhere from 160 to 270psi.
If you are convinced system charge is low, (an oil stain may appear where the leak is in the system) I would empty it (slowly as not to lose any more oil)
I would then refill with the correct amount of R134A that also contained a leak fix additive and see how it goes...
But then I might be wrong...I am sure other members will have some thoughts
Good luck


I recommend a set of gauges and a thermometer.
You need to find out what is wrong with the system before you risk over charging it (unless you already know the system has a leak...).
It may be nothing to do with the charge...
Having said that, and since you ask, charge is R-134a. My 2001 vert takes 0.68Kg or 1.5lbs to fill. Oil is GM PAG.
A/C air should be at about 50 degrees from the vents after 5 minutes full on with a window rolled down (90 degrees ambient, parked in the shade).
Low side should be around 30-35psi, High side can be anywhere from 160 to 270psi.
If you are convinced system charge is low, (an oil stain may appear where the leak is in the system) I would empty it (slowly as not to lose any more oil)
I would then refill with the correct amount of R134A that also contained a leak fix additive and see how it goes...
But then I might be wrong...I am sure other members will have some thoughts
Good luck

dave
The Best of Corvette for Corvette Enthusiasts

I recommend a set of gauges and a thermometer.
You need to find out what is wrong with the system before you risk over charging it (unless you already know the system has a leak...).
It may be nothing to do with the charge...
Having said that, and since you ask, charge is R-134a. My 2001 vert takes 0.68Kg or 1.5lbs to fill. Oil is GM PAG.
A/C air should be at about 50 degrees from the vents after 5 minutes full on with a window rolled down (90 degrees ambient, parked in the shade).
Low side should be around 30-35psi, High side can be anywhere from 160 to 270psi.
If you are convinced system charge is low, (an oil stain may appear where the leak is in the system) I would empty it (slowly as not to lose any more oil)
I would then refill with the correct amount of R134A that also contained a leak fix additive and see how it goes...
But then I might be wrong...I am sure other members will have some thoughts
Good luck













