Toyota Tundra Service Manual: Problem Symptoms Table

Toyota Tundra Service Manual / Engine, Hybrid System / Differential / Differential System / Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, 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.

Front differential

Symptom	Suspected Area	See page
Oil leakage from front differential	Oil (level too high or wrong grade)
	Front differential carrier oil seal (worn or damaged)
	Front differential side gear shaft oil seal (worn or damaged)
	Companion flange (loose or damaged)
Oil leak from front differential drive pinion shaft	Oil (level too high or wrong grade)
	Front differential carrier oil seal (worn or damaged)
	Companion flange (loose or damaged)

Rear differential (for 1UR-FE)

Symptom	Suspected Area	See page
Oil leakage from rear differential	Oil (level too high or wrong grade)
	Rear differential carrier oil seal (worn or damaged)
	Companion flange (loose or damaged)
Oil leak from rear differential drive pinion shaft	Oil (level too high or wrong grade)
	Rear differential carrier oil seal (worn or damaged)
	Companion flange (loose or damaged)

Rear differential (for 3UR-FE. 3UR-FBE)

Symptom	Suspected Area	See page
Oil leakage from rear differential	Oil (level too high or wrong grade)
	Rear differential carrier oil seal (worn or damaged)
	Companion flange (loose or damaged)
Oil leak from rear differential drive pinion shaft	Oil (level too high or wrong grade)
	Rear differential carrier oil seal (worn or damaged)
	Companion flange (loose or damaged)

Precaution

Front Differential Carrier Assembly(for 4wd)

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