Help with vacuum problem !!!!
07-05-2024, 07:23 AM
#1
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Year: 1997
Model: Cherokee
Engine: 4.0
Help with vacuum problem !!!!
Can someone show me where to look for Dorman's chart for check valves. 1997 jeep cherokee 4.0.
07-05-2024, 10:09 AM
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Year: 1989
Model: Comanche (MJ)
Engine: 4.0
Need some more details, but since you said vacuum, I'm guessing you're looking for Dorman 47170.
https://www.cherokeeforum.com/f2/ac-...-valve-238279/
https://www.cherokeeforum.com/f2/ac-...-valve-238279/
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Saudade (07-07-2024)
07-06-2024, 06:03 PM
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Year: 1997
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Engine: 4.0
help with vacuum problem
My problem is when I accelerate my a/c changes to defrost vents. It just started just the last time I drove it. I checked all the lines and don't see anything out of place. I'm hoping for simple fix. Thanks
07-06-2024, 07:32 PM
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Year: 1989
Model: Comanche (MJ)
Engine: 4.0
The check valve could be the culprit. Take it out and see if you can only blow through one direction. Also check the lines and the vacuum reservoir behind the passenger side of the bumper.
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Saudade (07-07-2024)
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