Having fun with my Ford.

I just installed a new A/C control mode vacuum and electric switch. It's doing the same thing as before:

Turn the **** to the setting you want, and it will run awhile in Defrost. Over time, it will eventually get to the setting I selected, and stay there until I select another function.

I can go out after several hours of off-time, and the system will still be in the mode I selected. Move that selector, and it will bounce into defrost, and the cycle repeats.

The old selector switch had issues... occasionally the fan would not come on with it, and the compressor clutch would stay off, too.

The installation cured the electrical problems.

What I need is: A schematic for the system, and the location of the vacuum reservior.

I truly appreciate the help. It's been warm this summer, and I love the A/C in this truck, when it's blowing properly.

 

Look inside the passenger fender. Also might be up behind the glove box.

 

Thanks for the information.

I appreciate it. Now, I can track down a vacuum leak...

 

Last year when I did a total firewall-forward replacement of the A/C in my 1994 Bronco, I found the vacuum reservoir attached to the outside of the evaporator case, on the side facing the engine, under the foil-faced insulation.

The check valve for it is hanging off into space out in front of the evap, and the hose to the reservoir goes through a slot in the foil, so it's easy to track it down. It is a small vacuum hardline.

If you carefully pry up the two steel push-on retaining washers holding the top of the foil to the evap case, you can then peel the foil insulation back to get access without destroying the insulation.

 

Got a chance to look it up in the service manual this morning.

Manual shows it right where Torky2 described it on his Bronco, so check there first.

 

Thanks, Gents.

I'll get on it this morning.

Getting a new windshield this afternoon, so I'm hanging around the homestead all day.