Accent GT Coupe L4-1495cc 1.5L DOHC MFI (1997)
Technical Service Bulletin # 97-40-028
Date: 970901
A/T - Harsh Engagement Shock
Group: TRANSAXLE
Number: 97-40-028
Date: SEPTEMBER, 1997
Model: ALL
Subject
PARK-REVERSE OR PARK-DRIVE GEAR ENGAGEMENT SHOCK DIAGNOSIS
DESCRIPTION:
Some vehicles may have a harsh engagement shock when shifting from Park to Reverse or Park to Drive. This condition may be more pronounced when
the automatic transaxle fluid (ATF) is cold. If you encounter a vehicle with this condition, please follow the diagnostic procedure shown below.
PARTS INFORMATION:
WARRANTY INFORMATION:
Normal warranty operation codes and times apply.
Diagnostic Procedure
1.
Inspect the ATF level in "NEUTRAL" with the ATF at normal operating temperature (70-90°C, 158-194°F).
A.
If the oil level is low, add ATF to bring the level to the top of the "Full" mark.
B.
Inspect the ATF color and smell. If the ATF is black and smells burned, remove the transaxle oil pan. If metal particles and clutch material
are found in the oil pan, replace the transaxle.
2.
Check that idle speed is within specification. Adjust, if applicable. (Refer to appropriate Shop Manual, Fuel System section, "Service Adjustment
Procedures").
3.
Attach the scan tool to the data link connector (DLC) and select the "Transaxle" menu.
A.
Select "Codes" and check for diagnostic codes (DTC). If DTCs are found, repair the condition.
B.
Select "Data" and "Trans Temp." Check that the transaxle ATF temperature reads as shown below. If not, replace the oil temperature sensor.
^
ATF cold - scan tool reads the same temperature as outside air
^
ATF at normal operating temperature- scan tool reads 70-90°C (158-194°F)
C.
Select "Data" and "Idle Switch". Check that the idle switch reads as shown below. If not, adjust or replace the idle switch. (For adjustment