AC Clutch Cycling Switch


Aaron Berk

10+ Year Member

Joined
Jan 8, 2009
Messages
3
Points
3,001
City
Savannah
Vehicle Year
1995
Transmission
Automatic
Ok so I did all the troubleshooting and came to the conclusion that yes my cycling switch is faulty.
So my question is this, will all my coolant bleed out if I R&R this switch on the accumulator?
It's on a 95 ranger if ya wanted to know.
Thanks and God Bless
Aaron
 
Nope. There is a Schraeder valve under that. Remove it (quickly) and you will lose minimal if any refrigerant, as long as the valve isn't damaged (not likely).
 
Thanks MAKG!

MAKG said:
Nope. There is a Schraeder valve under that. Remove it (quickly) and you will lose minimal if any refrigerant, as long as the valve isn't damaged (not likely).
Click to expand...

I'm off to R&R the valve right now, after a cup of java.
start the clock........
Thanks again MAKG :icon_thumby:
 
Arggggg!!!!!!!

:bawling:
OK this went way sour. Should have been a simple R&R. Should have been a quick job. NOT!
OK here's what went right. My coffee was hot and tasty... end of story
Here is what went wrong. Shopped at Advance Auto, was sold the wrong part.

Ok OK OK, I know your supposed to check the parts before you buy, but with some items they all look the same on the out side. And when I looked at this cycling switch while in the store it looked just dandy. And even when I removed my old one and did a side by side they still looked good. The kicker is that the threads are off by a hair!!!! What I was sold was a switch for a 80 something to 93 ranger, mine is a 95 so no dice on parts interchange. I've got a switch for R12 and what I'm running is 134a.

My gut told me to go to O'reilley Auto Parts (and I even called them the day before to arrange a pickup) but Advance was closer and I took the bait.

Guess I'll be fixing all this tomorrow:annoyed:
 
The switch itself is the same for either refrigerant. The adjustment is slightly different -- R-134a will tolerate a lower pressure before icing. The threads might be as well (I don't know that one).
 
Sounds like a crossthread to me. Very easy to do with aluminum, and especially that particular part. Maybe not?:)shady
 
Yeah, that was my thought as well.

The earlier pressure switches are plastic -- even easier to crossthread than aluminum.

For the OP, a trick I taught my 65 year old mother-in-law is to BACK OFF the nut until you feel it "jump" off the threads, and then tighten it by hand as far as you can (for this, it will be quite far and may be all the way).
 
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