1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

A/c. Wiring diagram

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Old 07-18-2011, 01:19 PM
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Default A/c. Wiring diagram

Hello guys

I got a 93 that the Ac won't stay on, it works well for few min and the compressor stops, anything obvious to look for? Could a low charge create this problem?

Does anyone have a wiring schematic? For the Ac?



Thanks

Gonzy
 
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Old 07-18-2011, 02:08 PM
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Sounds the pressure switches are bad or low on Freon.
 

Last edited by H.R.D; 07-18-2011 at 02:11 PM.
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Old 07-20-2011, 09:16 AM
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I am about to look into my busted A/C too. I ran across this thread when researching it, it has a ton of wiring info, maybe it will help you out:
https://www.dieselbombers.com/1st-ge...-diagrams.html

I have read that a low freon charge will prevent the compressor from staying on.

GL man!
 
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