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The AC compressor is not turning when the AC is turned on

Tiny
FABIAN83
  • MEMBER
  • 1999 DODGE RAM
  • 79,500 MILES
I have a 1999 Dodge Ram 1500 Sport and the AC is not working and I was doing some research and I noticed the center of the ac compressor is not turning when the ac is turned on. Is there any fuses or relays I can check before I go any further trying to figure out this problem.
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Friday, August 10th, 2012 AT 9:04 PM

2 Replies

Tiny
SATURNTECH9
  • MECHANIC
  • 30,870 POSTS
You can check the fuses but if the system pressure isnt high enough the compressor wont turn on.You need to check the actual system pressure.

This video will help

https://youtu.be/ON2dYcmXIAw

Please run down this guide and report back.
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Friday, April 23rd, 2021 AT 9:45 AM
Tiny
KHLOW2008
  • MECHANIC
  • 41,815 POSTS
Check fuse # 5, underhood power distribution center and the compressor clutch relay.

Apply battery voltage to the compressor clutch terminal to see if the compressor clicks.
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Friday, April 23rd, 2021 AT 9:45 AM

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