Avenger V6-2.7L (2008)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
Engine, A/T Controls - Harsh Shifts/Converter Shudder
NUMBER: 21-003-08
GROUP: Transmission
DATE: January 15, 2008
THE StarSCAN(R) FLASH FILES FOR THIS BULLETIN MUST BE RETRIEVED FROM THE INTERNET.
StarSCAN(R) SOFTWARE LEVEL MUST BE AT RELEASE 8.04 OR HIGHER.
StarMOBILE DESKTOP CLIENT MAY ALSO BE USED TO PERFORM THIS PROCEDURE.
SUBJECT:
Flash: Torque Converter Shudder with Coordinated Change OR Shift Quality Improvements
OVERVIEW:
This bulletin involves reprogramming the Powertrain Control Module (PCM) with new software if shift harshness is the symptom/condition - OR - if
shudder is the symptom/condition, reprogramming the Powertrain Control Module (PCM) and replacing the torque converter with one that includes
revised friction material.
MODELS:
2007
(JS41)
Sebring
2007 - 2008
(JS41)
Avenger
2008
(JS27)
Sebring Convertible
NOTE:
This bulletin applies to models equipped with a 2.7L or 3.5L engine and 41TE or 62TE automatic transmission (Sales Codes DFF or DG2) built
prior to July 23, 2007 (MDH0723XX).
NOTE:
This bulletin DOES NOT apply to JS models equipped with a 2.4L engine.
SYMPTOM/CONDITION:
The vehicle operator may experience one or more of the following symptoms:
1.
Transmission Shudder
a.
This condition can only occur after the vehicle has been driven and the torque convertor is past the break in period. Torque Converter break
in can be confirmed with the StarSCAN(R).
b.
If experienced, the shudder may occur when the transmission temperature is between 38° C and 54° (100° F and 130° F) during steady state
driving with the torque convertor in partial lock (EMCC) operation. The shudder feels like the vehicle is being driven over rumble strips.
2.
Torque Converter Pull In Bump
a.
This condition can occur due to abrupt torque converter clutch engagement during EMCC initialization.
3.
Shift Harshness
a.
Models equipped with a 2.7L engine & 41TE transmission may exhibit 1 - 2 upshift harshness.
b.
Models equipped with a 3.5L engine & 62TE transmission may exhibit 1 - 2 or 2 - 3 upshift harshness.
DIAGNOSIS:
Using a Scan Tool (StarSCAN(R)) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all engine/transmission systems are
functioning as designed. If DTC's are present record them on the repair order and repair as necessary before proceeding further with this bulletin.
If the vehicle operator describes the Symptom/Conditions and they can be verified, perform the appropriate Repair Procedure.
