Grand Caravan V6-3.3L VIN R (2005)
Technical Service Bulletin # 21-022-05
Date: 051104
Instruments - Speedometer Inaccurate by 6MPH Over 50 MPH
NUMBER: 21-022-05
GROUP: Transmission
DATE: November 4,2005
SUBJECT:
Inaccurate Speedometer
OVERVIEW:
This bulletin may involve replacing the transfer gear set, erase any Diagnostic Trouble Codes (DTC) and resetting the pinion factor.
MODELS:
2005
(RS)
Town & Country/Caravan/Voyager
NOTE:
This bulletin applies to RS vehicles equipped with a 3.3L engine (sales code EGA or EGM) and an automatic transmission (sales code DGL).
NOTE:
This bulletin only applies to vehicles that have had previous transmission repair work involving the transfer gear set or differential assembly gear set.
SYMPTOM/CONDITION:
The vehicles speedometer may be inaccurate by as much as 6 m.p.h. at a vehicle speed of 50 m.p.h.
DIAGNOSIS:
Using a Scan Tool (DRBIII(R)) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all transmission systems are functioning
as designed. If any speed sensor related DTC is present record them on the repair order and repair as necessary before proceeding further with this
service bulletin.
If the vehicle operator describes or experiences the Symptom/Condition check the repair history. If the vehicle has been serviced for a transfer gear set or
differential assembly gear set then it will be necessary to perform the Repair Procedure.
NOTE:
Ask the customer if they have had any transmission service performed by a non-Chrysler, Dodge or Jeep dealer, to determine if the transfer gear set
or the differential gear set has been serviced.
PARTS REQUIRED:
