SC L4-1.9L DOHC VIN 7 (1991)
Valve Body: All Technical Service Bulletins
A/T - Erratic Shifts, Harsh Shifts/Slip Shifts
NO.:
92-T-05
DATE:
February, 1992
GROUP:
Transaxle
CORP NO.:
287101
SUBJECT:
Erratic Shifts, Harsh Shifts, and/or Slip Shifts (Replace Transaxle Control Body Assembly)
MODELS
AFFECTED:
Some 1991 Saturns with Automatic Transaxles.
CONDITION:
Some 1991 Saturns, within the followiiig VIN ranges, may exhibit erratic shifts, harsh shifts, slip shifts, skipping gears or not upshifting.
MODEL
VIN RANGE
SL1, SL2
MZ108285 to MZ129254
SC
MZ103171 to MZ103724
MZ108362 to MZ128715
CAUSE:
These conditions may be caused by a chipped ceramic seat, inside the transaxle actuator. The resultant ceramic chip coming off the seat can stick in the
actuator or some other fluid passage in the valvebody causing erratic shifts and/or poor shift quality.
CORRECTIVE
ACTION:
If a vehicle displays any of the subject symptoms and falls within the VIN ranges given, replace the control body assembly (valvebody). Refer to
"Valvebody" in the "Automatic Transaxle In-Vehicle Repair" section of the "Automatic Transaxle Service Manual."
After replacing the control body assembly, verify that the condition has been corrected. If the condition is still present, follow diagnostic procedures
located in the "Automatic Transaxle Service Manual."
PARTS
REQUIREMENTS:
21002273
Control Body Asm - A/Trans
21001683
Gasket - Cover to Case
CLAIM
INFORMATION:
To receive credit for this repair, submit a claim through the Saturn Dealer