When AC goes out...

Post by **itsdug** » 15 May 2008, 11:53

that could be it. i always thought that was an odd set up. the owners manual mentioned the light being on though. hey if it blows cold air i'm happy.

thanks again,
Doug

Post by **itsdug** » 15 May 2008, 16:08

Ozark Lee wrote:Are you sure you are actually turning it off? On the electronic climate control unit the A/C light illuminates in the Off position rather than the On position.

...Lee

that was exactly what was wrong. thanks.

i went for a 20 minute test drive and it blew cold air the whole time. i shut the car off to run into the post office but when i came out it just blew hot air. when i returned home i shut the car off for about 5 minutes and when i restarted it i had cold air again. any suggestions?

Post by **Ozark Lee** » 15 May 2008, 16:58

Measure the A/C clutch gap with a feeler gauge set. The gap should be under 0.020. If it is larger than that the A/C clutch needs to be reshimmed. There is the really correct way to do that and then there is a real easy ghetto way of doing it.

What are your pressure readings compressor on and compressor off? You could have actually overcharged the system as well which will make the compressor run hot and then the thermal cutout will disable it until it cools again.

...Lee

Post by **itsdug** » 15 May 2008, 17:23

with a/c on gauge was reading about 41. probably not the correct way of doing it but i got it down to exactly 35. it was blowing cold air the entire time. i shut the car off for a couple of minutes then restarted and it was blowing warm air again. with the a/c turned off the gauge was in the red.

Post by **Ozark Lee** » 15 May 2008, 17:45

41 is high for a running pressure - 35 is in the ballpark depending on the ambient temperature.

Your next check is the clutch gap.

Here is the proper way to fix it - See N8-50's .pdf file:

http://volvospeed.com/vs_forum/Ac-Therm ... 76833.html

Here is the ghetto procedure:

http://volvospeed.com/vs_forum/index.ph ... opic=80181

...Lee

Post by **itsdug** » 15 May 2008, 20:58

thanks again. there's not much room to move but i think i fix it.

delagarzaeric · Post by **delagarzaeric** » 24 Sep 2009, 21:37

I'm trying to recharge my a/c but the hose will not lock on the refill fitting. Anyone else have this problem?

Post by **Ozark Lee** » 25 Sep 2009, 01:19

Welcome to MVS,

It is more of a hose fitting problem than a Volvo problem but yes. Pull back very hard on the female fitting collar, press the connector hard onto the male connector, and you should be able to get it to seat. You will feel the snap upon releasing the collar when it is correct.

...Lee

arsenal6 · Post by **arsenal6** » 25 May 2010, 13:49

what brand is good for r134 or is it a generic type?

Post by **Ozark Lee** » 25 May 2010, 19:11

It is all the same. I just buy the cheapest house brand stuff I can find from Advance or O'Reilly.

...Lee