Torque Converter Clutch And Drive Plate: Inspection

2004 Toyota Matrix XR, FWD, StandardSECTION Inspection
WARNING: This page is about a different car, the 2004 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT ONE-WAY CLUTCH 
    1. Install SST so that it fits in the notch of the converter hub and outer race of the one-way clutch.
      1. SST 09350-30020 (09351-32020)
      Fig 1: Installing SST
      G00894538Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Press on the serrations of starter with a finger and rotate it.

      Check if it rotates smoothly when turned clockwise and locks up when turned counterclockwise.

    Fig 2: Inspecting One Way Clutch
    G00894539Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. MEASURE DRIVE PLATE RUNOUT AND INSPECT RING GEAR 

    Set up a dial indicator and measure the drive plate runout.

    1. Maximum runout: 0.20 mm (0.0079 in.) 

    If runout exceeds 0.20 mm (0.0079 in.) or if the ring gear is damaged, replace the drive plate. If installing a new drive plate, note the orientation of spacers and tighten the bolts.

    1. Torque: 83 N.m (850 kgf.cm, 61 ft.lbf) 
    Fig 3: Measuring Drive Plate Runout & Inspecting Ring Gear
    G00894540Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. MEASURE TORQUE CONVERTER CLUTCH SLEEVE RUNOUT 
    1. Temporarily mount the torque converter clutch to the drive plate. Set up a dial indicator.
      1. Maximum runout: 0.30 mm (0.0118 in.) 

      If runout exceeds 0.30 mm (0.0118 in.), try to correct by reorienting the installation of the torque converter clutch.

      If excessive runout cannot be corrected, replace the torque converter clutch.

      HINT:

      Mark the position of the torque converter clutch to ensure correct installation.

    2. Remove the torque converter clutch.
    Fig 4: Measuring Torque Converter Clutch Sleeve Runout
    G00894541Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.