Repair of automatic transmission torque converter lockup
Symptoms of malfunction:
* Slipping when changing gears
* Slipping out of gear
* Increased fuel consumption
* Reduced engine power
Causes of malfunction:
* Wear of friction linings
* Damage to piston
* Contamination of the torque converter
* Spline wear
Repair procedure:
1. Preparation:
* Prepare the necessary tools and materials (new set of friction linings, piston, gaskets, transmission fluid).
* Drain the transmission fluid.
2. Removing the torque converter:
* Unscrew the bolts securing the torque converter to the engine.
* Remove the starter and heat shield.
* Pull out the torque converter.
3. Disassembling the torque converter:
*Remove the locking ring and cover.
* Remove the piston, friction linings and springs.
4. Replacement of faulty parts:
* Replace worn friction linings with new ones.
* If necessary, install a new piston.
5. Torque converter assembly:
* Place the friction linings, springs and piston into the housing.
* Install the locking cover and stand ring.
6. Installation of torque converter:
* Place the torque converter in place in the transmission.
* Tighten the engine mounting bolts.
* Install the heat shield and starter.
7. Setting the transmission fluid level:
* Fill with new transmission fluid.
* Start the engine and warm it up to operating temperature.
* Check the fluid level and add if necessary.
Adviсe:
* Use only original manufacturer parts.
*Clean all parts thoroughly during assembly.
* Check the spline connection between the transmission pump shaft and the torque converter for wear.
* After repair, renew the transmission fluid.
* Start the engine only after setting the fluid level.