12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

A/C help.

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Old Jun 15, 2014 | 04:06 PM
  #1  
sutie's Avatar
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From: point mugu, ca.
Default A/C help.

So with this hot Virginia weather, it sure would be nice to have some cool air in my truck. Ac blows hot, clutch won't engage. Ac relay is getting power, no other fuses look bad. I bypassed the switch and jumped the clutch straight to the battery and it turned in...so I know it's an electrical issue but I can't find out were the problem is. And suggestions on what to try next?

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Old Jun 16, 2014 | 12:25 PM
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well, Have you put a set of gauge's on the system to find out if it has pressure ?

If its not got any pressure, the low pressure switch will keep the clutch from engauging .. A/C pro to top it off , it comes with a gauge, follow the directions, real straight forward .

Keep posted
 
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Old Jul 12, 2014 | 08:17 PM
  #3  
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Sorry for the late update, it was the pressure switch, filled it up and worked fine ever since. Thanks for the help.
 
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Old Jul 13, 2014 | 03:27 PM
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Awesome
 
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