This procedure replaces the torque converter clutch solenoid in the 6R80 transmission, which requires removing the transmission pan and valve body to access the solenoid.

Warnings

Tools required

Parts

• Torque converter clutch solenoid × 1 — Ford BC3Z-7G383-F or equivalent
• Transmission pan gasket × 1 — Use OEM specification
• Valve body gasket kit × 1 — Use OEM specification
• Transmission filter (if replacing) × 1 — Motorcraft FT-185 or equivalent

Fluids

• Motorcraft MERCON LV ATF — 11 qt

Preparation

1. Park vehicle on level surface and engage parking brake
2. Disconnect negative battery cable
3. Raise vehicle and support securely on jack stands at all four corners
4. Remove skid plate if equipped
5. Place large drain pan under transmission
6. Allow transmission to cool completely if recently driven

Procedure

1. 1

   Drain transmission fluid
   Remove the transmission drain plug and allow fluid to drain completely into the drain pan. If no drain plug is present, you will drain from the pan removal in the next step. Reinstall drain plug with new crush washer if equipped.
   Torque spec

   Transmission Drain Plug30 Nm (22 lb-ft)
2. 2

   Remove transmission pan
   Remove all transmission pan bolts in a criss-cross pattern, starting from the center and working outward. Carefully lower the pan, being aware that residual fluid will spill out. Remove the pan and gasket, then clean the pan thoroughly and inspect for metal shavings or debris that could indicate internal damage.
   Torque spec

   Pan Bolts20 Nm (15 lb-ft)
3. 3

   Remove transmission filter
   Remove the transmission filter by pulling it straight down from the valve body. Some fluid will drain from the filter. Inspect the old filter for debris. Set aside the filter or replace with new one.
4. 4

   Remove valve body bolts
   Locate and remove all valve body mounting bolts. There are approximately 15-18 bolts of varying lengths. Keep bolts organized by location as they are different lengths. Note the position of any brackets or wiring harnesses attached to the valve body.
   Torque spec

   Mounting Bolts76 Nm (56 lb-ft)
5. 5

   Disconnect electrical connectors
   Disconnect all solenoid electrical connectors from the internal wiring harness. Press the release tabs and pull connectors straight out. Note the orientation and routing of the harness for reassembly.
6. 6

   Lower valve body
   Carefully lower the valve body assembly. Support it with one hand while removing the last bolts. Be extremely careful as the valve body may have loose check balls or springs that can fall out. Place the valve body on a clean work surface with the solenoid side facing up.
   ⚠Do not flip or shake the valve body as internal check balls and springs can be dislodged.
7. 7

   Locate torque converter clutch solenoid
   The TCC solenoid is typically located on the valve body assembly. It is electronically controlled and will have an electrical connector. Identify the solenoid by tracing the harness or referring to a diagram.
8. 8

   Remove TCC solenoid
   Remove the bolts or retaining clips securing the TCC solenoid to the valve body. Carefully pull the solenoid straight out. Inspect the O-rings and sealing surfaces for damage. Clean the solenoid mounting area on the valve body with brake cleaner.
   Torque spec

   Sensor Bolts14 Nm (10 lb-ft)
9. 9

   Install new TCC solenoid
   Lubricate new O-rings on the replacement solenoid with clean MERCON LV fluid. Insert the solenoid straight into the valve body bore, ensuring proper alignment. Install retaining bolts or clips and tighten evenly.
   Torque spec

   Sensor Bolts14 Nm (10 lb-ft)
10. 10

    Reinstall valve body
    Install new valve body gaskets in the correct positions. Carefully raise the valve body into position, ensuring all passages align correctly and no check balls or components have fallen out. Start all mounting bolts by hand before tightening any of them.
    Torque spec

    Mounting Bolts76 Nm (56 lb-ft)
11. 11

    Reconnect electrical connectors
    Reconnect all solenoid electrical connectors to the internal wiring harness. Ensure each connector clicks into place and is fully seated. Verify proper routing of the harness to avoid pinching.
12. 12

    Install transmission filter
    Install the transmission filter (new or cleaned original) by pushing it straight up into the valve body until it seats fully. Ensure the filter seal is properly positioned.
13. 13

    Install transmission pan
    Install a new transmission pan gasket. Position the pan carefully and start all pan bolts by hand. Tighten the pan bolts in a criss-cross pattern from the center outward to ensure even gasket compression.
    ⚠Do not overtighten pan bolts as this can warp the pan flange and cause leaks.
    Torque spec

    Pan Bolts20 Nm (15 lb-ft)
14. 14

    Fill transmission with fluid
    Lower the vehicle. Fill the transmission with the specified amount of Motorcraft MERCON LV ATF through the dipstick tube or fill plug. Start with approximately 6-7 quarts, then check level after warming up. Use a transmission fluid pump or long funnel.
15. 15

    Initial startup and level check
    Reconnect the battery. Start the engine and allow it to reach operating temperature. With the engine running and transmission in Park, check the fluid level on the dipstick. The fluid should be in the crosshatch area when hot. Add fluid as needed to bring to proper level. Cycle through all gear positions 2-3 times, then recheck level.

Reassembly

1. Ensure all electrical connectors are fully seated and locked
2. Verify transmission pan is not leaking after initial startup
3. Reinstall skid plate if equipped
4. Tighten all fasteners to specified torque values

Verification

• Check for fluid leaks around the transmission pan after test drive
• Verify transmission shifts smoothly through all gears
• Confirm torque converter lockup occurs (typically felt as a smooth engagement at highway speeds around 45-50 mph)
• Scan for diagnostic trouble codes using OBD-II scanner to confirm no TCC-related codes are present
• Recheck transmission fluid level when fully warmed up and adjust as necessary

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