1997 - 2003 F-150

Low pressure A/C switch

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Old Nov 26, 2010 | 07:11 PM
  #1  
SlammaJamma's Avatar
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From: Louisiana
Low pressure A/C switch

Where can I find the low pressure switch for my A/C Freon? I'm not getting power to the clutch and all fuses/relays are fine, and the system was just recharged a couple weeks ago when I got my heater core changed.
 
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Old Nov 27, 2010 | 10:43 AM
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From: Montague, NJ
its either on top of the canister on the firewall, or right next to the battery.
 
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Old Nov 29, 2010 | 05:00 PM
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From: Louisiana
Ok thanks for the help.

New question: I only have power coming in on 1 of the Female connectors (i forgot which color.) I disconnected the LPS and hooked my test light to it after turning the a/c to MAX. Should I have power coming in to both wires? I jumped the sensor and the clutch still wasn't receiving any power.

Im stumped.
 
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Old Nov 29, 2010 | 05:13 PM
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From: Arnold, MD
its a switch, that opens on low pressure. power in on one then out on the other, if the switch is made. if you jump it out and it still isnt working, move on.
 
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Old Dec 1, 2010 | 08:49 PM
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From: Memphis, TN 38135, USA, Earth
Double-posting is discouraged.
https://www.f150online.com/forums/v8...-problems.html

I think you've checked as much as you can safely. Going any further is risky, for several reasons. I strongly recommend taking it to a pro.
 
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