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SNAPONTECH, Technician
Category: Car
Satisfied Customers: 3803
Experience:  2 year Associate in Applied Arts and Sciences Degree in Automotive Repair Technology
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My 97 3500 ram van ac has a problem...hill the air flow would switch

Customer Question

My 97 3500 ram van ac has a problem. on max air when i went up hill the air flow would switch to floor outlet then when i leveled out the air would switch back to upper vents. now the air will only come out of the floor vent. I would like to know what the problem is.Jim L.
Submitted: 5 years ago.
Category: Car
Expert:  SNAPONTECH replied 5 years ago.


Welcome to Justanswer, My name isXXXXX am here to help.


I believe there is either a vacuum leak or the check valve is bad on the control unit for the climate control


This is what will need to be tested. If you dont have the tools the shop will probably charge 1 hour of labor to complete this and find the vacuum leak if the check valve is bad this will be about 10 bucks.


Let me know if you have any questions. If this was helpful please take a moment to kindly press the green ACCEPT button in the lower right hand corner. Thanks in advance Danny


I knew that I had a vacuum. I need to know where the check valve is and how to check for leaks

SNAPONTECH and 4 other Car Specialists are ready to help you
Expert:  SNAPONTECH replied 5 years ago.
I think you missed the steps I loaded above which give the location of the check valve how to test and everything you need to get the job done. I would like appreciate it if you would email to [email protected] or post this was a mistake so I can have the moderator fix the negative feedback you have me as I did load the test steps maybe you didnt click on the link as I provided. I will give you the link again maybe this time you can see it and click on it this is how the steps are loaded. BELOW IN BLUE IS A HYPERLINK THAT WILL OPEN A PDF FILE WITH THE STEPS THANKS