Air Conditioner Recharge Fail
So when I bought the heep exactly 4 years ago, the A/C was blowing perfectly cold. Loved it. Over the next couple years is has progressively gotten warmer, and now to a point where I want to do something about it.
Today I bought a can of 134a with a guage on it; its one of those that has the dial which you set the 'ambient air temperature' and try to get the low line pressure to within a range. I hooked it up to what I am pretty sure is my low pressure line nozzle (on the V8 it is near the coolant reservoir, on the passenger side near the firewall, right?)
This is when I got scared. I hooked it up, car is running, A/C is full blast, compressor is on constantly (odd, because in the winter during defrost it is constantly kicking on and off every 10-15 seconds...). The pressure reads at 45psi. Perfectly within the 'acceptable' range. Then just for the hell of it, I turned the A/C, therefore the compressor, off. The guage jumps to somewhere around 125PSI!!!! That seems way too high, and it scared me too much to inject any freon into the system. Or really to do much of anything but run around the car to kill the ignition.
Is 125psi ok when the compressor is off?
Should I inject more refrigerant anyway?
What would you recommend doing to get my freezing air back?
Thanks a bunch!!!
'93 5.2L V8, Laredo, 242 TC swapped from a 249, 3" Coils up front and Front coils in the Rear, JKS Adjustable Track bar, K&N Cold Air Intake with Amsoil filter, Rear cargo area shelving, and KOR's Steering Gear Brace, IRO's Over-The-Knuckle Steering, Top Light Rail, Top Tire Carrier... for now...
OR If you prefer acronyms: 93 5.2 V8, 249>242, 3" FC, ~2" RC, JKS Adj. TB w/ KOR TB Bracket, K&N CIA w/ Amsoil filter, Shelves, KOR SB, IRO OTK HD steering