Tundra 2WD V6-4.0L (1GR-FE) (2005)
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On rear transmission mount above rubber section of mount or on transmission extension housing assembly.
2. Test drive the vehicle and duplicate the noise.
3. With ChassisEAR(TM) installed the noise should be very loud from the frame crossmember No.3 pickup location and NOT heard on the rear
transmission mount above the rubber section of the mount.
Is the noise loudest when ChassisEAR(TM) has frame crossmember No.3 selected?
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YES - Go to step 4.
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NO - This TSB does NOT apply. Continue using ChassisEAR(TM) to identify the source of the noise and diagnose per the Repair Manual.
4. Replace the rear transmission mount frame crossmember No.3 and 4 bolts retaining the transmission mount to frame crossmember No.3.
A. Place the vehicle on a lift.
HINT
Use a transmission jack and underhoist stand to lift and support the transmission assembly during the next 5 steps.