B3000 SE Cab Plus 4 2WD V6-3.0L OHV (2001)
4. Apply 241(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(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.