LW2 V6-3.0L VIN R (2000)
2.
Inspect water pump. If coolant or residue is found on the top of the water pump higher than the weep hole, inspect for a leak from top of engine
(oil cooler cover, thermostat housing, etc.).
3.
Pressurize cooling system and inspect for a leak from water pump weep hole or engine block scaling area. (Some coolant from the weep hole is
normal.) Replace or repair as necessary.
4.
Install front timing belt cover. (Refer to "Timing Belt Cover Replacement (In-Vehicle) - Front" procedure in the Mechanical Section of the
Applicable Model Year L-Series (L81) Engine Service Manual.)
5.
Verify any repairs made by visual inspection after engine reaches normal operating temperature.
Thermostat Housing 0-ring
IMPORTANT:
Apply thread sealant PST 565(R) (or equivalent) to thermostat housing bolt threads prior to installation.
IMPORTANT:
Leave throttle body coolant hoses connected so the system can be pressurized in order to locate leak.
1.
Remove components as necessary to allow visual inspection of thermostat housing. (Refer to "Thermostat Inlet Housing and Element" procedure
in the Cooling Section of the Applicable Model Year L-Series (L81) Engine Service Manual.
2.
Clean area around thermostat housing.
3.
Using a black light or tracing powder around suspect area, pressurize coolant system to identify leak area. If thermostat housing is leaking replace
0-ring.
4.
Install all components that were previously removed. Verify repair by visual inspection after engine reaches normal operating temperature.
