I hjave a 1996 Dodge Ram Pickup ( 3/4 ton) Ac is not very cold and believe I need to add refrigrant.. Have the kit, but can not find the "low side" input. Have ooolke at entire ( large) line from the "can" on the firewal, to the compresser it'sself. No port. I have two, (one in each line) in the lines in and out of the ccooler radiatir up front. I have been under on top and inside. Sinply can't find a low side connection. Any help will be appreciated
R Lydell

I have a 95 Ram 1500, 5.9L and the low pressure line is located on the passenger side near the radiator overflow canister.