Toyota Highlander Service Manual: Inspection
1. INSPECT WATER PUMP ASSY
(a) Visually check the drain hole for coolant leakage.
(b) Turn the pulley, and check that the water pump bearing moves smoothly and noiselessly.
If the bearing moves roughly or noisily, replace the water pump assy.
(c) Visually check the air holes for coolant leakage.
If leakage is found, replace the water pump assy.
if engine coolant has leaked onto the timing belt, replace the timing belt.
Replacement
1. DRAIN ENGINE COOLANT (See page 16-26 )
2. REMOVE FRONT WHEEL RH
3. REMOVE FRONT FENDER APRON SEAL RH
4. REMOVE V BELT NO. 1 (See page 14-125 )
5. REMOVE VANE PUMP V BELT (See page 14-125 )
6. ...
Thermostat (3MZ-FE)
REPLACEMENT
HINT:
The installation procedures are the removal procedures in reverse order.
However, only installation procedures
requiring additional information are included.
1. DRAIN ENGINE CO ...
More about Toyota Highlander:
Inspection
1. INSPECT MASS AIR FLOW METER
(a) Check the output voltage.
Apply battery voltage across terminals 1 (+B) and 2
(E2G).
Connect the positive (+) tester probe to terminal 3
(VG), and negative (-) tester probe to terminal 2
(E2G).
Blow air into the Mass Air Flow (M ...
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