Pickup 4WD L4-2559cc 2.6L SOHC (4ZE1) (1988)
Input Shaft: Customer Interest
M/T Transfer Case - Fluid Leak From Trans. to T.case
BULLETIN NUMBER
SB92-05-005
ISSUE DATE
September 24, 1992
GROUP
TRANSMISSION
MUA TRANSMISSION TRANSFER CASE OIL SEALS
AFFECTED VEHICLES
Trooper (KT), Rodeo (UC), Pickup (TF) and Amigo (TC) 4-wheel drive manual transmission models produced before July 1991, equipped with V6 or
2.6L 4ZE1 engine.
SERVICE INFORMATION
Excessive oil in the transfer case and low oil level in the main transmission case indicates that oil is seeping past the transfer case oil seals (Figure 1). If
this condition is present, follow the procedures in this Service Bulletin for transmission diagnosis/repair.
As mentioned in the Service Policy and Procedures Manual (section 6.1-7), replace individual components rather than complete assemblies whenever
possible.
SERVICE PROCEDURE
1.
If there is excessive oil in the transfer case and low oil level in the main transmission case, proceed to Step 2.
2.
If necessary, bring the transmission and transfer case oil levels to their proper quantities.
Oil Quantity Specifications:
Transmission Oil - 3.1 quarts (2.95 liters)
Transfer Case Oil - 1.5 quarts (1.45 liters)
3.
Road test the vehicle, checking for normal transmission operation.
4.
a. If road test reveals symptoms of transmission damage, perform transmission repairs as necessary, following the procedures in the appropriate
Workshop Manual. Ensure that new transfer case oil seals are installed during the repair.
NOTE
Use transfer case oil seals listed in the "Parts Information" section of this Service Bulletin.
b.
If road test reveals normal transmission operation, remove the transmission assembly from the vehicle and replace the transfer case off seals as
described in the appropriate Workshop Manual.
IMPORTANT