Excursion 4WD V10-6.8L (2002)
![background image](/ford/excursion_4wd/v10-6.8l/Page-2474002.png)
4. Apply 241 kPa (35 psi) of air pressure to the heater core. Submerge the heater core in water.
5. If a leak is observed, replace the heater core.
4. Apply 241 kPa (35 psi) of air pressure to the heater core. Submerge the heater core in water.
5. If a leak is observed, replace the heater core.