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1994.5 - 1997 7.3L Power Stroke Diesel  

A/C compressor not turning on?

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Old Apr 13, 2020 | 12:39 PM
  #46  
culbertson1933's Avatar
culbertson1933
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Joined: Mar 2020
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[QUOTE=Hit Man X;19224995]Start a new thread please.

The low switch will remain an open circuit until there is pressure in the system to close it, thus sending power down the line to the high switch and finally off to compressor.[/QUOTE. K I’ll start a new thread ( 02 7. Ac clutch no engaging , I have power at both low and high just not getting to the compressor
 
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Old Jun 1, 2022 | 06:32 PM
  #47  
EconoRyan's Avatar
EconoRyan
Mountain Pass
Joined: Dec 2021
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I left mine unplugged when i did the thermostat housing lol.

Glad i went and checked.
 
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Old Jan 19, 2023 | 11:00 PM
  #48  
Leesh's Avatar
Leesh
4th Gear
Joined: Jun 2022
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Originally Posted by DIYMechanic
There are two pressure switches that could be preventing the A/C compressor from running. One is on the back of the compressor itself, the other one is in the line over near the passenger side fender. You can use a small piece of wire or (or a paperclip as long as you make sure it doesn't touch anything) and jump one wire to the other. You just need to connect the two wires together and you have bypassed the switch.
Thank you so much this helped us diagnose and fix our truckkkk woooo
 
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