Mark LT 4WD V8-5.4L VIN 5 (2006)
Radiator: Testing and Inspection
Radiator Leak Test, Removed From 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.
1. Leak test the radiator in clean water with 138 kPa (20 psi) air pressure.
