Low side reads high, high side reads low

2005 DODGE RAM

122,000 MILES • 3.7L • V6 • 2WD • AUTOMATIC

LIMESTAHL

MEMBER
1 POST
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Low side reads high, high side reads low. Brand new orifice tube, dryer and compressor. What am I missing? All fans are running, compressor clutch is working, all lines are clear.

Jul 27, 2018 at 11:26 AM

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KASEKENNY

AUTOMOTIVE REPAIR CONTRIBUTOR
18,907 POSTS

You are correct that if the low side is high and the high side is low then the compressor is most likely faulty.

Here is a guide that will help with this:

https://www.2carpros.com/articles/replace-air-conditioner-compressor

Below is a chart that will help with this and the process from the manual on how to replace the compressor. Please let us know if you have other questions. Thanks

Images (Click to enlarge)

Jun 23, 2021 at 9:34 AM