Dakota 4WD V8-4.7L VIN N (2000)
Powertrain Control Module: All Technical Service Bulletins
A/T - Harsh Reverse Gear Engagement
NUMBER: 21-01-00
GROUP: Transmission
DATE: Feb 4, 2000
SUBJECT:
Intermittent Harsh Engagement Into Reverse Gear On Certain RE Model Transmissions
OVERVIEW:
This bulletin involves the replacement of the transmission valve body upper housing separator plate and a valve body check ball. In addition, for 2000
M.Y. vehicles equipped with a 46RE transmission this bulletin involves selectively erasing and reprogramming the JTEC Powertrain Control Module
(PCM) with new software (calibration change 00Cal13/13A).
MODELS:
2000
(AB) Ram Van
1999 - 2000
(AN) Dakota
1999 - 2000
(BR/BE) Ram Truck
2000
(DN) Durango
1999 - 2000
(WJ) Grand Cherokee
NOTE:
THIS INFORMATION APPLIES TO 1999 AND 2000 MODEL YEAR VEHICLES EQUIPPED WITH EITHER A 42RE AUTOMATIC
TRANSMISSION BUILT BEFORE SEPTEMBER 1, 1999 (MDH 0901 XX) OR 2000 MODEL YEAR VEHICLES EQUIPPED WITH A 46RE
AUTOMATIC TRANSMISSION BUILT BEFORE DECEMBER 1,1999 (MDH I2OIXX).
SYMPTOM/CONDITION:
The customer may experience a harsh engagement into gear when reverse is selected. This condition may be intermittent, and may occur more frequently
as the transmission fluid warms to normal operating temperatures.
DIAGNOSIS:
1.
Verify that the transmission fluid level is correct.
2.
Verify that the valve body throttle valve and transmission shift linkage is adjusted properly.
Using the Mopar Diagnostic System (MDS2) and or the Diagnostic Scan Tool (DRB III) with the appropriate Diagnostic Procedures Manual, verify all
engine/transmission systems are functioning as designed. If Diagnostic Trouble Codes (DTC's) are present, record them on the repair order and repair as
necessary before proceeding further with this bulletin. If no DTC's are present, and the above symptoms have been experienced, perform the Repair
Procedure.
NOTE:
WHENEVER A POWERTRAIN CONTROL MODULE (PCM) IS REPLACED DUE TO FAILURE, THE SOFTWARE OF THE
REPLACEMENT CONTROLLER MUST BE VERIFIED FOR THE LATEST REVISION LEVEL. USE THE FLASH PROCEDURE TO
UPDATE REPLACED CONTROLLERS AS NECESSARY.
EQUIPMENT REQUIRED:
1
CH6OOO
Scan Tool (DRB III)
1
CH7035
General Purpose Interface Bus Cable (GPIB)
1
CH700017001 J1962 Cable
1
MDS2
NOTE:
THE MDS2 AND DRB III ARE REQUIRED TO PERFORM PART OF THIS REPAIR. WHEN USING THE MDS2 AND THE DRB III, THE
SYSTEM MUST BE OPERATING AT CIS CD 2051 OR HIGHER.
PARTS REQUIRED:
1
52118261
Ball, Rear Servo Check ('Torlon" - plastic for 42RE and 46RE)
1
52118272
Plate, Valve Body Separator (42RE trans.)
1
04295875
Gasket, Transmission Pan (42RE trans.)
1
04617196AB Plate, Valve Body Separator (46RE trans.)
1
05012978AA Gasket, Transmission Pan (46RE trans.)
10
05010124AA Fluid, Transmission ATF +3
1(AR)
04669020
Label, Authorized Software Update (if a 46RE trans.)
1(AR)
04275086
Label, Authorized Modification (if a 46RE trans.)