Toyota Highlander Service Manual: Differential system (4WD)

Differential

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Precaution

 Before disassembly, clean the outside of the rear differential assy and remove any sand or mud to prevent it from entering the inside of the assembly during disassembly and installati ...

More about Toyota Highlander:

Inspection
1. INSPECT WATER PUMP ASSY (a) Visually check for drain hole 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 le ...