I'm wanting to add refrigerant in my 1999 Dodge Ram 1500. I purchased a can of refrigerant at my local auto parts that included the quick release coupling for the low pressure side of the system. When I tried to add it, I found the coupling for the can of refrigerant was too small for my port installed on my truck (I'm sure it's the low pressure port I'm trying to add it in, but for sake of argument I'm trying to add it to the port on the passenger side front just behind the radiator support). I measured my port (.552") and the coupling on the can of refrigerant (.513").
Does Dodge put on a different port than standard? Are there adapters to be had? Where? (The guy at the parts place was clueless...) It looks like the port I have will unscrew from the line, but that would require evacuating the system, and I don't have a vacuum pump. For that matter, is that the right port?
Thanks,
Dave Young