NO.37 EXTERNAL LEAKS [LA4AX-EL (CD4E)]


id0503a2807400

37

External leaks

POSSIBLE CAUSE

• ATF leaks

Diagnostic procedure

STEP

INSPECTION

ACTION

1
ATF
• Is ATF level incorrect?
Yes
Service if necessary
No
Go to the next step
2
Seals/gaskets
Differential seal, speedometer seal, pump, main control cover, servo cover, split frange converter impeller hub, manual shift seal
Others
• Cooler fitting, pressure tap plug, line pressure plug, case porosity, case are cracked
• Vent is blocked or damaged
Connectors/sensors
• Transaxle connector, Transaxle range (TR) switch, Turbine shaft speed (TSS) sensor seal
 
Locate source of leak
Service if necessary
3
• Verify the test results.
- If normal, return to the diagnostic index to service any additional symptoms.
- If the malfunction remains, inspect the related Service Bulletins and/or On-line Repair Information and perform repair or diagnosis.
• If the vehicle is repaired, troubleshooting is completed.
• If the vehicle is not repaired or additional diagnostic information is not available, replace the PCM.