If the mechanical seal is damaged, the coolant leaks through the seal and drains through the passage. Replace the mechanical seal unit (seeWater Pump Housing Disassembly/Assembly).

Water Pump
Water Pump Impeller Disassembly/AssemblyStick Coil Input Voltage Inspection
NOTE
Be sure the battery is fully charged.
Turn the ignition switch to OFF.
Remove the ECU (see ECU Removal in the Fuel System
(DFI) chapter).
Do not disconnect the ECU connectors.
Connect a digital meter [A] to the connector [B] with the
needle adapter set.
Special Tool - N ...
Tightening Sequence
Generally, when installing a part with several bolts, nuts,
or screws, start them all in their holes and tighten them to
a snug fit. Then tighten them according to the specified sequence
to prevent case warpage or deformation which can
lead to malfunction. Conversely when loosening the bolts,
n ...
Intake Air Temperature Sensor Removal
NOTICE
Never drop the intake air temperature sensor especially
on a hard surface. Such a shock to the sensor
can damage it.
Remove the fuel tank (see Fuel Tank Removal in the Fuel
System (DFI) chapter).
Disconnect the connector [A] from the intake air temperature
sensor.
Remove the da ...