Radiator: Testing and Inspection
Radiator Leak Test, Removed From the VehicleCAUTION: Never leak test an aluminum radiator in the same water that copper/brass radiators are tested in. Flux and caustic cleaners can be present in the cleaning tank and they will damage aluminum radiators.
NOTE: Clean the radiator before leak testing to avoid contamination of tank.
1. Leak test the radiator in clean water with 138 kPa (20 psi) air pressure.