Vehicle Moves In N

Vehicle moves in N

Diagnostic Procedure:

1. Excessive ATF

2. ATF temperature sensor defective

3. Foreign material in separator plate orifice

4. Relief valve defective

5. Reverse control valve defective

6. Lubrication control valve defective

7. 1st-hold clutch defective

8. 1st clutch defective

9. 2nd clutch defective

10. 3rd clutch defective

11. 4th clutch defective

12. 5th clutch defective

13. Clearance between clutch end-plate and top disc incorrect

14. Needle bearing seized, worn, or damaged

15. Thrust washer seized, worn or damaged

Also check for:

- Check the ATF level, and drain the ATF if it is over-filled.
- Check the ATF temperature sensor O-ring for wear and damage.
- Check the stall speed. A/T Stall Speed Test
- Check all clutch pressures.
- Check for a clogged orifice in the separator plate. If the orifice is clogged, remove it and clean the separator plate orifice.
- Check the relief valve and lubrication control valve in the main valve body for free movement, and check the valve springs for wear and damage.
- Check the reverse control valve in the secondary valve body for free movement, and check the valve spring for wear and damage.
- Inspect all clutches for wear and damage.
- Inspect the clutch piston, the clutch piston check valve, and the O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and the plates for wear and damage, and inspect the clutch wave-plate height. If the discs and the plates are worn or damaged, replace them as a set. If the clutch wave-plate height is out of the tolerance, replace the clutch wave-plate. If they are OK, adjust the clearance with the clutch end-plate.
- Check the needle bearings and the thrust washers on all shafts for seizure, wear, and damage.