Toyota Highlander Service Manual: Differential (4WD)

Problem symptoms table

Use the table below to help you find the cause of the problem. The causes of the problem are listed in order of probability in the "Suspected Area" column. Check each part in order. If necessary, ...

Differential oil (4WD)

ADJUSTMENT 1. INSPECT DIFFERENTIAL OIL (a) Stop the vehicle on the level place. (b) Remove the differential filler plug and gasket. (c) Check that the oil surface is within 5 mm (0.20 in.) fro ...

More about Toyota Highlander:

Inspection
1. INSPECT VENTILATION VALVE SUB-ASSY (a) Install a clean hose to the ventilation valve. (b) Check ventilation valve operation.  Blow air into the cylinder head side, and check that air passes through easily. CAUTION: Do not suck air through the valve. Petroleum substances insi ...