Hint:
Use the table below to help determine the cause of the problem symptom. The potential causes of the symptoms are listed in order of probability in the "suspected area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.

Precaution
Differential oilCustomization
Customizable features
Your vehicle includes a variety of electronic features that can be
personalized to your preferences. The settings of these features
can be changed by using the steering wheel switches, entune
premium audio with navigation or entune audio, or at your
toyota dealer.
Customi ...
Installation
Install water pump assembly
Remove any old seal packing material from the
contact surface.
Apply a continuous line of seal packing as shown in
the illustration.
Seal packing:
toyota genuine seal parking black, three
bond 1207b or equivalent
Standard seal diameter:
2.2 To 2. ...
Inspection
Inspect cylinder block for warpage
Using a precision straightedge and feeler gauge,
measure the warpage of the surface that is in
contact with the cylinder head gasket.
Maximum warpage:
0.05 Mm (0.0020 In.)
If the warpage is greater than the maximum, replace
the cylinder block ...