Perform following tests to check for defective converter Torque converter and transmission cooler must be thoroughly cleaned and flushed if transmission is contaminated

One-Way Clutch Check

1. Install turner and stopper of One-Way Clutch Tester (09350-30020) in torque converter. See Fig. 3. Turner fits in inner race of one-way clutch. Stopper fits in notch of converter hub and outer race of oneway clutch.

2. Clutch should lock when turned counterclockwise, but should turn freely when rotated clockwise. Torque required to turn clutch clockwise should be less than 22 INCH lbs. (2.5 N.m). If necessary, clean converter and retest clutch. Replace converter if clutch still fails test.

2001-05 AUTOMATIC TRANSMISSIONS A340E & A340F Overhaul

Drive Plate Sequoia
Fig. 3: Checking Condition Of Torque Converter One-Way Clutch Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Drive Plate (Flywheel) Runout Check

Using dial indicator, measure drive plate runout. See Fig. 4. If runout exceeds .008" (.20 mm), or if ring gear is damaged, replace drive plate. If installing a new drive plate, note position of spacers.

2001-05 AUTOMATIC TRANSMISSIONS A340E & A340F Overhaul

Drive Plate Sequoia

Fig. 4: Measuring Drive Plate Runout

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Fig. 4: Measuring Drive Plate Runout

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Converter Sleeve Runout Check

Temporarily mount torque converter to drive plate. Mount a dial indicator with needle resting on converter sleeve. See Fig. 5. Rotate converter. If runout exceeds .012" (.30 mm), reposition converter on drive plate and recheck runout.

2001-05 AUTOMATIC TRANSMISSIONS A340E & A340F Overhaul

Drive Plate Sequoia

G93A23812

Do It Yourself Car Diagnosis

Do It Yourself Car Diagnosis

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