Hyundai Sonata: Torque Converter Control Solenoid Valve (T/CON_VFS). Repair procedures - Automatic Transaxle Control System - Automatic Transaxle SystemHyundai Sonata: Torque Converter Control Solenoid Valve (T/CON_VFS). Repair procedures

Inspection

1.
Turn ignition switch OFF.
2.
Disconnect the oil temperature sensor connector.
3.
Measure resistance between sensor signal terminal and sensor ground terminal.
4.
Check that the resistance is within the specification.

Removal

1.
Remove the automatic transaxle assembly.
(Refer to "Automatic Transaxle/Repair procedures" in AT group.)
2.
Remove the air breeder hose (A).
3.
Remove the valve body cover (B).

Tightening torque :
12.8 ~ 14.7 N.m (1.3 ~ 1.5 kgf.m, 9.4 ~ 10.9 lb-ft)

4.
Remove the bolt (3ea) after disconnecting the solenoid valve connector (B) and the oil temperature sensor connector (A).

Tightening torque :
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

5.
Remove the solenoid valve support bracket (B) and the valve body mounting bolt (A-1ea).

Tightening torque :
9.8 ~ 11.8 N.m (1.0 ~ 1.2 kgf.m, 7.2 ~ 8.7 lb-ft)

6.
Remove the torque converter control solenoid valve (A).


Installation

1.
Installation is the reverse of removal.
After replacement or reinstallation procedure of the valve body assembly, must perform procedures below.
Continue to apply liquid gasket at application points at the valve body cover with Ø2.5mm (0.0984in.) thickness.

Liquid gasket Part name :
Threebond 1281B or LOCTITE FMD-546

Adding automatic transaxle fluid.
(Refer to "Hydraulic system (Fluid)" in this group)
Perform TCM learning after replacing the automatic transaxle to prevent slow automatic transaxle response, jerky acceleration and jerky startup.
(Refer to "Automatic transaxle control system (Repair procedures)" in this group)

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