Go Back   F150online Forums > Body > HVAC
Sign in using an external account
Register Forgot Password?

A/C Compressor Short Cycle

Thread Tools Search this Thread Display Modes
Old 08-29-2007, 02:50 PM
Junior Member
Join Date: Dec 2004
Location: arkansas
Vehicle: 1997 ford f-150
Posts: 9
A/C Compressor Short Cycle

My truck is a 1997 F150 with the 4.2 v6, auto transmission. Now to the problem my ac compressor short cycles and I have no cold air. I added a can of r 134a and it worked for about 3 days before it quit. I hooked up the guage and it shows it still full but the pressure goes up and down as the compressor kicks on and off but it is still in the filled range of the guage. The pressure cycling switch is working I guess, when I touch it I can feel it clicking on and off and the lines right behind it are very cold. I don't know where to start to look for the problem any help will be greatly appreciated as in the past this board has helped me out alot
Reply With Quote
Old 08-29-2007, 03:21 PM
Senior Member
Join Date: Nov 2006
Location: Memphis, TN 38135, USA, Earth
Vehicle: 1983 Ford Bronco
Posts: 5,346
The gauge only shows accurately when the compressor is RUNNING. If the pressure drops too low, the low pressure switch will turn it off, indicating low charge. But don't just keep dumping it in - get a pro to find & repair the leak. You can damage a LOT more by just refilling it.

Walk softly & carry a BIG SIX ! ! !

. . .

Last edited by Steve83; 08-29-2007 at 03:30 PM.
Reply With Quote
Old 08-29-2007, 03:21 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are Off

All times are GMT -4. The time now is 09:59 PM.

This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company
Contact Us Advertising Privacy Statement Terms of Service Jobs Forum Text Archives
Emails & Contact Details