Was driving the other day and it just suddenly quit and started blowing
Got home and tried listening for the compressor engaging when I
dialed-up 'max cool'. No clutch click. Checked pressure - don't see
anything in the sightglass because there's no flow but I have >140PSI
in a hot system - it SHOULD be enough pressure for the cutout sensor.
Fuse (#7) is okay because the blower runs.
I don't have my metering handy so I can't start electrical checks for a
couple of days. There was oil the last time I burped the high-side
connector - looked reasonably clean. No visible leaks - I shouldn't
have lost any oil. Had UV tracer in it from last year and I see
nothing under UV light. Can't add oil or tracer now since I can't get
a pressure drop. It's an R12 system, with a rebuilt R134 compressor,
running 'Freeze-12' refrigerant (which is good for both '12 & '134
systems & seals & pressures & oils). http://www.freeze12.com &
My Haynes book sucks when it comes to A/C - you can tear down brakes &
steering & suspension and do other things that can kill you if you've
screwed up, but they say A/C is dangerous black magic and should only
be done by pros. Not even a schematic. F-'em.
Any help greatly appreciated. Thanks.