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Home >> Ford >> 2004 >> Excursion 6.8 S, RWD >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Cooling Fan >> Engine Cooling System - Excursion & F250-F550 Super Duty >> Diagnosis And Testing >> Engine Cooling >> Radiator Leak Test, Removed From the Vehicle

Radiator Leak Test, Removed From the Vehicle

CAUTION: Never leak test an aluminum radiator in the same water that copper/brass radiators are tested in. Flux and caustic cleaners may be present in the cleaning tank and they will damage aluminum radiators.
NOTE: Always install plugs in the oil cooler fittings before leak-testing or cleaning any radiator.
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.