The high pressure side switch can't be replaced without draining the system or letting it drain itself. The low pressure side pressostat (switch) can be since it has a schrader valve behind it. If you do drain the system you will need to pull a vacuum on it before your recharge it. I would do a bit...

UPDATE: Since I don't know what else to do, I'm planning on replacing the high pressure switch. Note on the info above: when talking about the voltage on the high pressure switch terminals, I was referring to the harness, not the switch. Today I ran the engine, forced the compressor on by manually m...

I was able to jury-rig a little wooden block to take the place of the plastic tab on my V70. Not very pretty, but it works. Once you remove the door panel the problem is easy to spot.

Hi all, I'm new to the forum, though I've viewed it many times. I own a 1998 V70 XC wagon with 97,000 miles on it and I'm having a devil of a time trying to diagnose why the a/c won't work. The compressor will not come on. I've measured the static low pressure at 90 psi (on a 70 degree F day), so th...