Toyota Highlander Service Manual: 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, replace these parts.
Symptom |
Suspected Area |
Oil leak from rear differential |
- Oil level (Too high or wrong grade)
- Rear differential front oil seal (Worn or damaged)
- Side gear shaft oil seal (Worn or damaged)
- Companion flange (Loose or damaged)
- Drive shaft (Damaged)
|
Oil leak from drive pinion shaft |
- Oil level (Too high or wrong grade)
- Rear differential front oil seal (Worn or damaged)
- Companion flange (Loose or damaged)
|
Noise in rear differential |
- Oil level (Low or wrong grade)
- Excessive backlash between pinion and ring gear
- Ring, pinion or side gears (Worn or chipped)
- Drive pinion bearing
- Side bearing (Worn)
|
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 ...
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