air conditioning system pressure

Reply

  #1  
Old 07-14-07, 02:14 PM
Member
Thread Starter
Join Date: Mar 2003
Location: united states
Posts: 59
Received 0 Votes on 0 Posts
air conditioning system pressure

I have a 1991 Ford Taurus with the 3.8. The air conditioner compressor keeps cycling on and off (like every 10 seconds) when it's definitely hot enough for it to stay on. I replaced the pressure sensor/switch and it had no effect. The system has about 35psi of pressure in it, and the gauge says that is right in the middle of the coolant full level. What should the pressure be? Is this too much and that's causing the switch to actuate?
 
Sponsored Links
  #2  
Old 07-14-07, 05:20 PM
Member
Join Date: Feb 2005
Location: Michigan
Posts: 335
Received 0 Votes on 0 Posts
You need to jump the compressor and take a reading on both the high and low sides. Then post back with the pressures. Did you open the system when you replaced the switch?
 
  #3  
Old 07-17-07, 05:23 PM
Member
Thread Starter
Join Date: Mar 2003
Location: united states
Posts: 59
Received 0 Votes on 0 Posts
Sorry, I've been out of town and just got your reply. I unscrewed the switch and put the new one on. It had a pressure valve underneath that shut off to prevent the escape of the coolant.

I'll try to get the readings posted asap, thanks.
 
Reply

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 Off
Refbacks are Off


Thread Tools
Search this Thread
Display Modes
 
Ask a Question
Question Title:
Description: