My ac is not working on my 2002 dodge ram 1500 after replaceing most parts on ac
What is your question?
I have replaced the compressor, condenser, evaporator, refrigerant lines with orifice tubes. I flushed the lines and pulled a vaccum
on the system with a two stage Pittsburg pump and cannot get the vaccum to hold. It bleeds down to zero in about 5 minutes,. I did replace all orings. I filled the system with 134a refrigerant to see if I could find the leak with soapy water and not a bubble was seen. Can you tell me what to do next? I am tempted to put compressed air in the system to see if I can find where the leak is. I think I going to flush the lines again to romove any moisture that may have gotten into them.
What makes this problem better or worse?
N/A
How long has your 2002 Dodge Ram 1500 had this problem?
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Hi, my name is Devin. I am an auto repair expert with the Car Genius team here at RepairPal. So sorry to hear you're having trouble with your Ram 1500.
It sounds like you've done a lot of the right things to get your AC working again, but if you're losing vacuum, that indicates a leak somewhere in the system. Since you've already checked with soapy water and didn't see any bubbles, you can try a few other things. First, you could recharge the system and add UV-dye. Using a blacklight, you can easily find where the dyed refrigerant is leaking. Another method would be pressurizing the system with Nitrogen and using the soapy water method again. Using compressed air to test for leaks isn't recommended because it can introduce moisture into the system. If you suspect moisture, pulling a vacuum for a longer period and then rechecking might help.
If you're still having trouble after trying these methods, it might be worth taking it to a professional with specialized equipment.
If you need more advice, have any other questions about your vehicle, or would like to get connected to a RepairPal Certified shop near you, we have you covered. Give us a call at 877-913-1554, and we will happily help you out!
