Toyota Tacoma manuals

Toyota Tacoma 2015-2018 Service Manual: Differential System(w/o Differential Lock)

Toyota Tacoma 2015-2018 Service Manual / Differential / Differential System(w/o Differential Lock)

Precaution

PRECAUTION

1. Before disassembly, clean the outside of the front and rear differential assembly and remove any sand and mud to prevent it from entering the assembly during disassembly and installation.

2. When removing connected parts made of a light alloy, such as front and rear differential carrier covers, tap them off with a plastic hammer. Do not attempt to pry them off with a screwdriver.

3. Always arrange disassembled parts in order and protect them from dust.

4. Before installation, thoroughly clean and dry each part and then apply hypoid gear oil LSD to it. Do not use alkaline cleaner for aluminum or rubber parts and ring gear set bolts. Also, do not clean rubber parts such as O-rings or oil seals with non-residue solvent.

5. Coat all sliding surfaces and rotating parts with hypoid gear oil LSD.

6. When holding components in a vise, be sure to place an aluminum sheet under the M part. Do not put them directly in the vise.

7. Be careful not to damage the contact surfaces of the case. Such damage could cause oil leakage.

8. Before applying adhesive, remove any remaining adhesive and clean the contact surfaces using non-residue solvent.

9. Do not supply oil immediately after installing parts with adhesive. Leave them for at least an hour.

10. Damage to the surfaces in direct contact with oil seals, O-rings or gaskets could cause oil leakage. Special attention should be paid.

11. When press-fitting an oil seal, be careful not to damage the oil seal lip and outside periphery.

12. When replacing a bearing, replace the inner and outer races as a set.

Problem Symptoms Table

PROBLEM SYMPTOMS TABLE

HINT:

Use the table below to help you find the cause of the problem. The numbers indicate the ranked order of probability of each of the possible causes. Check each part in order. If necessary, replace these parts.

Symptom

Suspected Area

See page

Oil leakage from front differential

Oil level (Too high or wrong grade)

Front differential rear oil seal (Worn or damaged)

Companion flange (Loose or damaged)

Oil leakage from rear differential

Oil level (Too high or wrong grade)

Rear differential front oil seal (Worn or damaged)

Companion flange (Loose or damaged)

Lost Communication With Vehicle Dynamics Control Module (U0122)
DESCRIPTION This DTC is detected if communication is lost with the skid control ECU (brake actuator assembly). DTC No. Detection Item DTC Detection Condition ...

Front Differential Carrier Assembly(for 4wd)
...

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HD Radio Tuner Malfunction (B1551,B158D,B15A0,B15B0,B15B3,B15B4,B15B7)
DESCRIPTION These DTCs are stored when a malfunction occurs in the radio and display receiver assembly. DTC No. DTC Detection Condition Trouble Area B1551 When one of the conditions below is met: "HD Radio" tune ...

Voice Recognition Microphone Disconnected (B1579)
DESCRIPTION The radio and display receiver assembly and telephone microphone assembly are connected to each other using the microphone connection detection signal lines. This DTC is stored when a microphone connection detection signal line is disconnected. DTC Code DTC Det ...

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