Honda 2003 Pilot Owner's Manual page 294

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Cooling System
DRAIN BOLT
4. Install a rubber hose on the drain
bolt in the back of the engine
block. Loosen the drain bolt.
290
Maintenance
RESERVE TANK
HOLDER
5. Remove the reserve tank from its
holder by pulling it straight up.
Drain the coolant, then put the
tank back in its holder.
6. When the coolant stops draining,
RESERVE
tighten the drain plug at the
TANK CAP
bottom of the radiator.
7. Tighten the drain bolt at the rear
of the engine cylinder block
securely.
Tightening torque:
7 lbf·ft (10 N·m , 1.0 kgf·m)