93 taurus, 3.0 engine automatic trans... R-12 air cond. unit... this
morning the a/c was putting out real cold for the 20 minute of city
driving.... came back home after one hour at doctors office. and it
seemed not as cold.... noticed that when driving it seemed to be getting
hotter(the engine is not running hot, just the a/c unit air..)......
i would have to stop at a few red lights about 6 of them and noticed
that when sitting there the air seemed to be getting colder. when
driving off it seemed to warm up(thought it might be vacuum as there is
greater vacuum when at idle???, well when almost all the way home it was
like no a/c in the car at all... went inside and had lunch... went back
out to car a started it up and it was not putting out anything but hot
air... the compressor was not working..... went back in to get the shop
manual and started car up and its ice cold, compressor working,
pressures correct...... i checked the diverter door for a loose or
missing hose, but there is none and it seems that the compressor might
not have been working on the ride home which would rule out the vacuum..
well i know the feeling, i did the same thing with a 83 mustang, nursed
it for 6 months until i could retire and be in the chips to buy a new
car.. thats the 93 taurus now.... well it was new, but like anything it
get old.. i can get parts for it, but not for me....
Do you have a Haynes manual? If not I suggest you purchase one for $10 and
look over the A/C troubleshooting section. I had nearly the same issues as
yours and Haynes led me to the problem, and the steps in remove the parts to
fix it all myself! In my situation it was my clutch going bad, doesn't
sound like yours though, sounds maybe like a controls issue if you're lucky.
Have you tried adding more refrigerant? I believe this can happen if you're
running low. If you're not, you'll know and your system won't suck any
outta the can. Good luck,
Motorsforum.com is a website by car enthusiasts for car enthusiasts. It is not affiliated with any of the car or spare part manufacturers or car dealers discussed here.
All logos and trade names are the property of their respective owners.