Ski

I found out why my A/C was not chilling to the desired temp yesterday.

I was about to pull the blower motor and attempt changing the expansion valve through there. However, when I pulled the cowl cover, I noticed that the fresh air vents were open; the recirc button was pushed in. So open the shop manuals to find the solenoid that functions to allow vacuum to close those shut. The solenoid is on the passenger side, up beside the glove box.

At this point I don't know if its the solenoid or the main control unit. I'll check this on a day when it calls for two or more days of rain or something. In the meantime, a nice fat black tie-wrap(s) is holding the rods in the closed position, which allows the A/C to get down to 42°,,once you get a little wind going over the condensor. Anyway,,,check those fresh air vents. BTW, I do have vacuum to inside the car, no problem, and the first solenoid works but the second,,,no worky.

Any opinions; solenoid or control unit,,,,anyone fought this one before?

cpt_koolbeenz

Well... I have no idea on your prob. But maybe you could tell me a little more about mine

My Post

Thanks

Ski

The first solenoid that you see, the one that is facing toward the engine, is for the heater valve control. The second one, the one closer to the console, is the one for the fresh air/recirculation flaps.

DrZ1

I think this my problem, w/ a/c on the flaps are only half shut.

Any ideas on how to fix?

thanks

testarossa_td

The control unit is the most common failure point(or should I say the switches). Those solenoids fail far less often. But with a little electrical know how..I know you know how should get you the answer you need at the solenoid.

lleroyb

I keep hearing the expansion valve can be changed by removing the glove box, is it not so?

Lou

Chris Prack

I have never had to replace an expansion valve in a 944 ever except for one that a customer broke trying to do it himself. I pulled the blower motor housing under the hood and it was right there. It takes no time to get the blower out. Less than one hour.

Plus you don't have to lie on your back with your arms over your head......