Started a winter project.... Heater/AC Box

hi dyimirage; you can test radiators or heater cores yourself. you need a radiator pressure pump , or just a small air compressor. start by draining rad or heater core, use only water put towels down in car for core test and try to see the core. pump up the radiator to about 10LBs check your core for leaks. you can check the core by itself or rad alone . with a air compressor get short hoses , make a block off for one outlet and hook up a fitting for air with a ball valve for the other outlet. put about 10LBspressure in check for leaks. for core same way 5/8 or 3/4 hoses. hope this helps anyone out there. mikeh