AC not working
Thread Starter
|
Junior User
Joined: Feb 2004
Posts: 93
Likes: 0
From: Oregon
AC not working
Hello all,
I have a 96 F350 with 44k on it. About a month ago the AC stopped working. The clutch does not engage (start turning) when I turn the AC on. Using my test lamp I can tell I’m getting power to the AC pump. I hooked up a pressure gauge to the low pressure port of the system and it read about 100 psi, (too high?) the AC clutch was not engaged or working though. Any ideas where I should go from here? Thanks.
I have a 96 F350 with 44k on it. About a month ago the AC stopped working. The clutch does not engage (start turning) when I turn the AC on. Using my test lamp I can tell I’m getting power to the AC pump. I hooked up a pressure gauge to the low pressure port of the system and it read about 100 psi, (too high?) the AC clutch was not engaged or working though. Any ideas where I should go from here? Thanks.
Mountain Pass
Joined: Feb 2003
Posts: 136
Likes: 3
Originally Posted by 96DRW
Hello all,
I have a 96 F350 with 44k on it. About a month ago the AC stopped working. The clutch does not engage (start turning) when I turn the AC on. Using my test lamp I can tell I’m getting power to the AC pump. I hooked up a pressure gauge to the low pressure port of the system and it read about 100 psi, (too high?) the AC clutch was not engaged or working though. Any ideas where I should go from here? Thanks.
I have a 96 F350 with 44k on it. About a month ago the AC stopped working. The clutch does not engage (start turning) when I turn the AC on. Using my test lamp I can tell I’m getting power to the AC pump. I hooked up a pressure gauge to the low pressure port of the system and it read about 100 psi, (too high?) the AC clutch was not engaged or working though. Any ideas where I should go from here? Thanks.
Thread Starter
|
Junior User
Joined: Feb 2004
Posts: 93
Likes: 0
From: Oregon
Originally Posted by quicklook2
look for the round cylinder with the air cond. hose/lines to it in front of heater box. on the side of that is the electrical connection you are looking to jump.
Trending Topics
Post Fiend
Joined: May 2004
Posts: 11,289
Likes: 6
From: Lakewood, Ohio
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Mountain Pass
Joined: Feb 2003
Posts: 136
Likes: 3
To jump out the switch, remove the wire from the switch(The switch is the little thing screwed into the side of the accumulator(Theres is a schraeder valve there, like the one on tires, so if you need to replace it you can without loosing all the refrigerant). Then attach a wire across the two leads on the wire harness you just removed. i use a paperclip alot of times. All the switch does is open up(Break continuity) when pressure gets too low(Or if the switch fails it will fail open). The AC system relies on the low pressure circuit being continuous. This switch tells the system when to turn the compressor on and off, so it is very important and seeing as it cycles alot, prone to fail.
Thread Starter
|
Junior User
Joined: Feb 2004
Posts: 93
Likes: 0
From: Oregon
I want to thank everybody for the help. Yesterday I disconnected the Pressure Switch intending to jump it. Before jumping it I decided to spray some electric contact cleaner on the connections. What do you know...the A/C fired up! I guess it always pays to try the simple stuff first. Thanks again.