PowerBuilt Cooling System Pressure Testing Kit 22 Piece??
"The Powerbuilt cooling system pressure test kit is one of the most comprehensive test kits on the market today. This kit contains numerous test adapters to fit more than 80% of all cars and trucks on road. This kit is designed to pressurize the system by including adapters to test the radiator, radiator caps and coolant reservoirs allowing the technician to easily identify if there are leaking in radiators systems."
I would plug the Water line holes / Oil cooler & then use an adapter to pressurize one of those holes - if it won't hold the 20 PSI then I try to listen for the hissing?
