My S-10 became a little warm a few months ago so I took it to a shop
that charged the system at my request and added about 1 lb of R134a
and some dye.
It was good and cool for about two months then went again. I took it
back and they tested it and said the compressor had a leak and needed
replaced. The compressor, accunulator, and orifice valve were to be
replaced for 900+.
At the suggestion of a sometime mechanic friend I charged the system
with a retrofit kit to the proper reading and it was good and cold for
about 48 hours then went south again. There is some type of oil around
the compressor so I assume its blowing out there.
I am willing to replace the compressor myself as it looks like there
is only two bolts holding it on but I must first get the serpentine
belt off and I do see the idler pulley but am not real sure how it
works. It has a bolt on the front of it: Does it loosen to allow the
pulley to pivot or is the bolt tight when you move the pulley?
Second: I can't find the orifice valve and do know that it is very
small and necessary to have a new one. I intend to take the auto to an
air shop after installing all the parts for evacuation, leakage
testing, and recharging.
Sorry for the long message but this repair does look doable and after
shelling out 1100 for a new clutch a few months ago I thought I would
give it a whirl. Thanks again ...