Radiator Leak Test, Removed From Vehicle
Radiator Leak Test, Removed From VehicleCAUTION: Never teak test an aluminum radiator in the same water that copper/brass radiators are tested in. Flux and caustic cleaners may he present in the cleaning tank and they will damage aluminum radiators.
NOTE: Always install plugs in the transmission fluid cooler fittings before leak testing or cleaning any radiator.
1. Leak test the radiator in clean water with 138 kPa (20 psi) of air pressure.