I have a 95 850 and when i got the car the air semi-worked. I just tried running it yesterday and it blew hot air so I filled it up w/ a can of R134A while the car was running and the air was on max setting and it blew cold. I got in it today and it blew hot air again, then after I got off work I tried it again and it cold air for about 5 minutes then started blowing hot air again![:'(] There are no blinking A/C lights either. I dont know what this could be so any help is appreciated.

 

You might still be low on freon.
Is the compressor cycling alot?

 

did you check the pressure inside the system on the low pressure side? You can get a gage from K/Wal-Mart etc., and follow the instructions.
1. Try to check the pressure when it is hot (~90F) outside. It should be within the 25-45 PSI range. Be carefull to not overfill the system-it will destroy your compressor.

2. Get a digital temp. gage (probe type) from same store(I got my from target for 9.99-in cooking section), and check the temp. at the vent- it should be about 50F on the second speed -if the temp is above, and you have too much freon -let some out, allow the car to idle w/ AC on for 3-5 min, and see if temp falls down. Keep doing that untill temp is about 48-50.

If you are low on freon (based on reading from the pressure gage), don't put the whole can at once-put some freon and watch temp again (3-5 min. to idle), and so on.

Good Luck

 

Anyone have any luck here... my 95 t5r has a similar problem. A/C start going out, then went completely. Put 2 cans back in and it was great for about 2-3 weeks. Filled it back up again with one of the "leak fixing" cans and it now comes and goes sporadically. It is about 85-95 right now and with the sun, the car is extremely hot on the black interior/exterior?

Could there be a leak? My compressor does cycle pretty frequently. What is a normal cycle?

 

Most likely a leak at the evaperator.

The compressor cycles when the pressure gets down to about 25 PSI then comes back on at like 45 PSI

If the Fan is on High speed it will take a while for it to cycle.

 

hrmmm, i just purchased a 96 850 sedan and was told the a/c had just been recharged. the car was shipped to me and as soon as i got it off the truck and started it up, the a/c was blowing ice cold. i messed with the a/c settings and it started blowing hot. i got really pissed and just rolled the windows down and drove for a while, then set all the temp. controls to 'auto' and it started blowing ice cold again for the rest of my 30 minute drive. i haven't driven the car since because it literally just got to me this morning and i drove it to work.