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Toyota Corolla Repair Manual: Torque converter clutch and drive plate (atm)

Toyota Corolla Repair Manual / Automatic transmission / trans / Torque converter clutch and drive plate (atm)

Inspection

1. Inspect torque converter clutch assy

  1. Inspect the oneway clutch.
  1.  Set sst into the inner race of the oneway clutch.

    Sst 0935032014 (0935132010)

  2.  set sst so that it fits in the notch of the converter hub and outer race of the oneway clutch.

    Sst 0935032014 (0935132020)

  1. With the torque converter clutch setting up on its side, check that the oneway clutch locks when it is turned counterclockwise, and rotates smoothly clockwise.

If necessary, clean the torque converter clutch and retest the oneway clutch.

Replace the torque converter clutch if the oneway clutch still fails the test.

  1. Determine the condition of the torque converter clutch assy.
  1.  If the inspection result of the torque converter clutch assy meets the following item, replace the torque converter clutch.

Malfunction item:

any metallic sound is heard from the torque converter clutch during stall test or when the shift lever is in neutral position.

Oneway clutch is free or locked in both directions.

Fine powders exceeding the sample limit is identified in atf. (See the sample.) Hint

: the sample shows the auto fluid of approx. 0.25 Liters (0.26 Us qts, 0.22 Imp. Qts) that is taken out from the removed torque converter clutch

  1.  replace the atf in the torque converter clutch.
  1.  If the atf is discolored and/or has a foul odor, completely stir the atf in the torque converter clutch and drain it with the face for installation facing up.

  1. Clean and check the oil cooler and oil pipe line.
  1. If the torque converter clutch is inspected or the atf is exchanged, clean the oil cooler and oil pipe line.

Hint

:

  1.  If the atf is cloudy, inspect the oil cooler.

  1. Prevent deformation of the torque converter clutch and damage to the oil pump gear.
  1.  When any marks due to interference are found on the end of the bolt for the torque converter clutch and on the bottom of the bolt hole, replace the bolt and the torque converter clutch.
  2.  All of the bolts should have the same length.
  3.  No missing spring washer.

2. Inspect drive plate & ring gear subassy

  1. Set up a dial indicator and measure the drive plate runout.
  2.  check the damage of the ring gear.

    Maximum runout: 0.20 Mm (0.0079 In.)

If the runout is not within the specification or ring gear is damaged, replace the drive plate.

Replacement
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Speedometer sensor (atm)
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Other materials:

Circuit description
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Replacement
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Starting off on a steep uphill
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