This procedure replaces the torque converter clutch solenoid located inside the transmission valve body, requiring transmission pan removal and valve body access.

Warnings

Tools required

Parts

• Torque Converter Clutch Solenoid × 1 — Use OEM specification
• Transmission pan gasket × 1 — Use OEM specification
• Valve body gasket × 1 — Use OEM specification
• Transmission drain plug crush washer × 1 — Use OEM specification
• Transmission filter (recommended) × 1 — Use OEM specification

Fluids

• Hyundai SP-IV-M ATF — 10 qt

Preparation

1. Park vehicle on level surface and engage parking brake
2. Disconnect negative battery cable to prevent accidental starts and clear fault codes
3. Raise vehicle and support securely on jack stands at all four corners
4. Remove front skid plate or underbody panels for transmission access
5. Allow transmission to cool completely if vehicle was recently driven
6. Position drain pan under transmission pan area

Procedure

1. 1

   Drain transmission fluid
   Locate the transmission drain plug on the bottom of the transmission pan. Using appropriate socket, slowly loosen drain plug and allow fluid to drain into collection pan. Once drained, remove and inspect crush washer. Clean drain plug threads with brake cleaner.
   Torque spec

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

   Remove transmission pan bolts
   Remove all transmission pan bolts in a criss-cross pattern, starting from the outer edges and working inward. Leave two bolts at opposite corners partially threaded to control pan removal. Carefully lower pan while remaining fluid drains. Remove final two bolts and lower pan completely. Inspect pan for metal debris or clutch material.
   Torque spec

   Pan Bolts16 Nm (12 lb-ft)
3. 3

   Remove transmission filter
   Locate transmission filter assembly inside pan area. Remove filter mounting bolts and carefully pull filter straight down to disengage from valve body. Inspect filter for debris. Clean filter mounting surface on valve body with lint-free rag and brake cleaner.
4. 4

   Remove valve body cover
   Identify valve body cover screws (typically 10-15 screws). Remove all cover screws in sequence, working from outer edges inward. Carefully separate cover from valve body, noting orientation. Inspect cover gasket and remove completely. Do not allow any gasket material to fall into valve body passages.
   Torque spec

   Cover Screws11 Nm (8 lb-ft)
5. 5

   Locate and disconnect TCC solenoid
   Inside the valve body, identify the torque converter clutch solenoid (typically labeled TCC or Lock-Up). Disconnect electrical connector by carefully releasing locking tab. Note wire routing and connector orientation for reinstallation.
6. 6

   Remove TCC solenoid
   Remove solenoid mounting bolts using appropriate socket. Carefully extract solenoid from valve body, noting orientation and any alignment pins. Inspect solenoid bore for debris or damage. Clean mounting surface with brake cleaner and lint-free rag.
   ⚠Do not drop solenoid or allow debris to enter valve body passages. Keep work area extremely clean.
   Torque spec

   Sensor Bolts11 Nm (8 lb-ft)
7. 7

   Install new TCC solenoid
   Verify new solenoid matches old unit exactly. Install new solenoid into valve body, ensuring proper alignment with any guide pins or slots. Install and hand-tighten mounting bolts. Torque mounting bolts to specification. Reconnect electrical connector ensuring positive lock engagement.
   Torque spec

   Sensor Bolts11 Nm (8 lb-ft)
8. 8

   Reinstall valve body cover
   Install new valve body gasket onto cover, ensuring all passages align correctly. Position cover onto valve body in original orientation. Install all cover screws hand-tight first, then torque in criss-cross pattern from center outward to specification.
   Torque spec

   Cover Screws11 Nm (8 lb-ft)
9. 9

   Install transmission filter
   Install new transmission filter by aligning with valve body ports and pushing straight up until seated. Install filter mounting bolts and torque to specification. Verify filter is fully seated with no gaps.
10. 10

    Clean and prepare pan surfaces
    Thoroughly clean transmission pan interior and remove all old gasket material from both pan and transmission housing mating surfaces using plastic scraper. Clean surfaces with brake cleaner and wipe with lint-free rags until completely clean and dry. Inspect pan magnet and clean if equipped.
11. 11

    Install transmission pan
    Position new transmission pan gasket on pan or transmission housing per gasket design. Align pan with housing and install all bolts hand-tight. Torque pan bolts in criss-cross pattern from center outward to specification.
    Torque spec

    Pan Bolts16 Nm (12 lb-ft)
12. 12

    Install drain plug and fill transmission
    Install new crush washer on drain plug. Install and torque drain plug to specification. Locate transmission fill plug on side of transmission case. Remove fill plug and use ATF pump or funnel with long hose to add approximately 8 quarts of SP-IV-M ATF through fill hole. Reinstall fill plug temporarily.
    Torque spec

    Transmission Drain Plug30 Nm (22 lb-ft)
13. 13

    Check fluid level and road test
    Lower vehicle and reconnect negative battery cable. Start engine and allow to idle. With engine at operating temperature and on level ground, shift through all gear positions, pausing 3 seconds in each. Return to Park. Check fluid level per manufacturer procedure (may require removal of fill plug with engine running). Add fluid as needed to bring to proper level. Road test vehicle through all gears and verify proper torque converter lock-up operation at highway speeds.

Reassembly

1. Reinstall any underbody panels or skid plates removed during access
2. Verify no tools or parts were left in engine bay or under vehicle
3. Clean any spilled ATF from chassis and driveway
4. Reset transmission adaptation values using scan tool if available
5. Document fluid level check and road test results

Verification

• Check for transmission fluid leaks around pan, drain plug, and fill plug after initial start
• Verify smooth shifting through all gears with no harsh engagements
• Confirm torque converter lock-up engages smoothly at 40-50 mph under light throttle
• Scan for diagnostic trouble codes and verify TCC solenoid code has cleared
• Recheck fluid level after 50-100 miles of driving and top off if needed
• Monitor transmission temperature gauge for normal operating range

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