A/T Torque Converter - MIL ON DTC P1870
BULLETIN NUMBER:SB00-05-S003
ISSUE DATE:
JUNE 2000
GROUP:
TRANSMISSION
1998-99 RODEO (UE): TORQUE CONVERTER (DTC 1870)
(Supersedes SB00-05-S002)
NOTE:
Shaded information reflects revisions from the previous service bulletin.
AFFECTED VEHICLES
Certain 1998 and 1999 Rodeo (UE) models equipped with automatic transmission (serial number 5504006-5570892).
SERVICE INFORMATION
Condition:
The Malfunction Indicator Lamp (MIL) sets and Tech-II indicates the presence of Diagnostic Trouble Code (DTC) P1870 on vehicle equipped with automatic transmission (serial number 5504006 - 5570892).
Cause:
Failed torque converter.
^ If mileage is less than 3,500 miles and Automatic Transmission Fluid (ATF) is in good condition and turbine shaft "O" ring is not damaged, then replace torque converter.
^ If mileage is greater than 3,500 miles or transmission damage is suspected (transmission fluid is burnt-brown in color or other evidence of damage), follow Workshop Manual procedures to diagnose and repair as needed.
NOTE:
In this case, torque converter is not necessarily to be exchanged.
1. Verify the following:
^ The vehicle has less than 3,500 miles.
^ The only DTC stored is P1870
^ Serial numbers falls within 5504006-5570892 located on the transmission identification plate.
PARTS INFORMATION
2. If all the criteria in step 1 are met, then replace torque converter (using appropriate part no. listed in Parts Information) as described in section 7A of the appropriate workshop manual. If any of the criteria is not met, then perform General Diagnosis Procedure as described in section 7A of the appropriate workshop manual and/or proceed to step 3.
3. If mileage is greater than 3,500 miles or transmission damage is suspected, then follow servicing instructions as stated in the following steps to check the ATF fluid level and condition for color and contamination.
4. If the ATF fluid is red or light brown in color with no contamination, then continue to the proceeding steps described below (Go to step 5 if the ATF fluid is dark brown in color with a burnt odor).
a.) Clear code
b.) Test-drive and review if any MIL codes sets.
c.) If no codes are present, then release the vehicle to the customer.
5. If the fluid is dark brown in color with a burnt odor, this may indicate excessive fluid deterioration and signal a need for fluid change. Therefore drain the transmission fluid and inspect for contamination (Go to step 6 if there are small pieces of foreign material present. Go to step 7 if large pieces of metal or other foreign material are present).
6. If a small amount of foreign material is found on the bottom of the drain pan, then replace the transmission filter as described in the appropriate workshop manual.
a.) Remove adapter case oil pan to drain the remaining transmission fluid and main oil pan to change the transmission filter.
b.) Once the transmission filter has been changed, flush the transmission cooler, reassemble both oil pans and fill with new ATF DEXRON(R)-III through overfill screw of oil pan.
c.) Clear any codes present and test-drive the vehicle.
d.) If there are no codes present, then release the vehicle to the customer.
7. If large pieces of metal or other foreign material are found on the bottom of the drain pan, then replace the transmission as described in the appropriate workshop manual.
a.) Replace the transmission assembly.
b.) Flush the transmission cooler and cooler lines.
c.) Add new ATF DEXRON(R)-III through overfill screw of oil pan.
d.) Clear any codes present and test-drive the vehicle.
e.) If there are no codes present, then release the vehicle to the customer.
NOTE:
PART NUMBER(s) HAVE BEEN UPDATED.
WARRANTY CLAIM INFORMATION
Use the published labor operation for torque converter replacement as shown. If additional repairs are required due to transmission damage, select appropriate operation from current Rodeo (UE) Flat Rate Manual, Section 05.