Mechatronic Assembly
Mechatronic Assembly
Mechatronic
Mechatronic Upper Half
Mechatronic Lower Half
Check Ball Location
Disassembly
NOTICE: For vehicles equipped with a 4.6L or 5.4L engine, do not touch the electrical connector terminals or the exposed solenoid tabs on the Transmission Control Module (TCM). Electrostatic discharge may occur and may cause damage to the TCM.
NOTE: For vehicles equipped with a 4.6L or 5.4L engine, the TCM is part of the molded leadframe.
NOTE: For vehicles equipped with a 6.2L engine, the PCM replaces the TCM.
NOTE: Make an identifying mark on each solenoid and the corresponding bore for correct assembly.
NOTE: Solenoids may visually appear the same but their designs/functions are different. Caution must be taken not to assemble the mechatronic assembly incorrectly. Incorrect solenoid installation will result in poor transmission shift quality.
NOTE: Note where the 8 check balls, 6 solenoid dampers, 2 internal valves and springs and 2 internal filters are located for reassembly.
Mechatronic assembly upper half
1. Make an identifying mark on each solenoid and the corresponding bore for correct assembly.
2. Remove the 6 long bolts from the molded leadframe.
3. NOTE: Transmission Control Module (TCM) molded leadframe shown, PCM molded leadframe similar.
Carefully separate the molded leadframe from the mechatronic assembly.
1. Molded leadframe
2. Mechatronic assembly
4. Remove 19 short bolts from the mechatronic assembly.
5. Separate the lower half of the mechatronic assembly from the upper half of the mechatronic assembly.
6. Remove and discard the separator plate.
7. Remove the solenoid dampers, check balls, converter drain back valve and filter screens from the mechatronic assembly. Note the location for assembly. Refer to the preceding exploded views.
1. Solenoid dampers
2. Check balls
3. Converter drain back valve
4. Small screen
5. Big screen
8. Remove the clips, caps, valves and springs from each bore of the mechatronic assembly. Note the location and order for assembly. Refer to the preceding exploded views.
9. Using clean mineral spirits, clean the upper half of the mechatronic assembly.
Mechatronic assembly lower half
10. Remove the 8 solenoid bracket bolts and the solenoid bracket.
11. Remove the solenoids.
12. Remove the clips, caps, valves and springs from each bore of the mechatronic assembly. Note the location and order for assembly. Refer to the preceding exploded views.
13. Using clean mineral spirits, clean the lower half of the mechatronic assembly.
Assembly
NOTICE: For vehicles equipped with a 4.6L or 5.4L engine, do not touch the electrical connector terminals or the exposed solenoid tabs on the Transmission Control Module (TCM). Electrostatic discharge may occur and may cause damage to the TCM.
NOTE: For vehicles equipped with a 4.6L or 5.4L engine, the TCM is part of the molded leadframe.
NOTE: For vehicles equipped with a 6.2L engine, the PCM replaces the TCM.
Mechatronic assembly upper half
1. NOTE: Many components and surfaces in the mechatronic valve body are precision machined. Careful handling during disassembly, cleaning, inspection and assembly will prevent unnecessary damage to machined surfaces.
Install the clips, caps, valves and spring into each bore. Refer to the preceding exploded views.
Mechatronic assembly lower half
2. NOTE: Many components and surfaces in the mechatronic valve body are precision machined. Careful handling during disassembly, cleaning, inspection and assembly will prevent unnecessary damage to machined surfaces.
Install the clips, caps, valves and spring into each bore.
3. NOTE: Lubricate the O-ring seals of the solenoids with clean automatic transmission fluid when installing them into the valve body.
Install the solenoids into their correct bores as indicated during disassembly.
4. Install the solenoid bracket and the 8 bolts.
- Tighten to 6 Nm (53 lb-in).
5. NOTICE: Toward the back of the upper valve body there is a hydraulic passage that is shaped as though it receives a check ball. This passage does not require a check ball. Be sure not to mistake this hydraulic passage for a passage that does require a check ball or damage to the transmission can occur.
Install the solenoid dampers, check balls, converter drain back valve and filter screens.
1. Solenoid dampers
2. Check balls
3. Converter drain back valve
4. Small screen
5. Big screen
6. Empty hydraulic passage (no check ball)
6. Align the guide pins on the molded leadframe with the holes in the upper valve body and install the valve body on the molded leadframe.
1. Molded leadframe
2. Upper valve body
3. Guide pins
7. NOTICE: If the drain back valves are not installed correctly in the separator plate, damage to the transmission can occur.
Position the separator plate on the upper valve body.
Check the 2 drain back valves to be sure they are correctly positioned in the separator plate when the separator plate is pressed flush against the upper valve body.
1. Separator plate
2. Drain back valves
8. Position the lower valve body on the 2 molded leadframe alignment studs, align the manual valve with the Transmission Range (TR) sensor on the molded leadframe and install the lower valve body.
1. Lower valve body
2. Manual valve
3. TR sensor
9. Install the 6 (long) molded leadframe-to-valve body bolts hand-tight.
10. Install the 19 (short) mechatronic assembly lower-to-upper valve body bolts.
- Tighten the bolts in the sequence shown.
- Tighten bolts 1 through 6 in the tightening sequence to 7 Nm (62 lb-in).
- Tighten bolts 7 through 25 in the tightening sequence to 6 Nm (53 lb-in).
