Steering - Flutter Condition Improved

STEERING
ST002-99

Title:
STEERING FLUTTER

Models:
'00 Tundra

May 21, 1999

Introduction
Production changes have been made to improve a steering flutter condition on 2000 MY Tundra vehicles. The repair procedure included in this bulletin should only be used on vehicles manufactured before the production changes.





Production Change Information





Parts Information

Required Tools and Material

TOOLS & MATERIALS QUANTITY

Haweka Precision Adapter Kit 1





Warranty Information

Applicable Warranty *:
This repair is covered under the Toyota Basic Warranty. This warranty is in effect for 36 months or 36,000 miles, whichever occurs first, from the vehicle's in-service date.

* Warranty application is limited to correction of a problem based upon a customer's specific complaint.

Repair Procedure

1. Confirm correct tire pressure setting:

TIRE SIZE COLD TIRE PRESSURE - FRONT COLD TIRE PRESSURE - REAR

P245/70R16 26 PSI 35 PSI
P265/70R16 26 PSI 29 PSI

2. Drive the vehicle and confirm if the steering flutter condition is corrected. If the condition is not corrected, go to step 3. If the condition is corrected, return the vehicle to the customer.

3. Confirm tire/wheel assembly balance.

HINT:
Use the Haweka Precision Adapter Kit to properly balance Tundra tire/wheel assemblies (Refer to TSB-SU002-96). The Adapter Kit is available through the Toyota Special Service Tools Program by calling 1-800-933-8335. Current Part Numbers for the Adapter Kit are as follows:

PART NUMBER DESCRIPTION

02001-02280 Haweka Flange Plate # 1 for 28 mm Balancer Arbor Shaft
02001-02300 Haweka Flange Plate # 1 for 30 mm Balancer Arbor Shaft
02001-02360 Haweka Flange Plate # 1 for 36 mm Balancer Arbor Shaft
02001-02400 Haweka Flange Plate # 1 for 40 mm Balancer Arbor Shaft

NOTE:
The Haweka Precision Adapter Kit was distributed to all Toyota Dealerships as part of the Essential Tool Package in 1997.

NOTE:
Turn the tire balancer "Road Force Variation" measurement function off (if applicable).





Mount tire/wheel assembly to tire balancer as illustrated.

4. Drive the vehicle and confirm if the steering flutter condition is corrected. If the condition is not corrected: go to step 5. If the condition is corrected, return the vehicle to the customer.

5. Remove and replace the steering wheel.

HINT:
Front toe may require adjustment to ensure the new steering wheel is centered.

6. Drive the vehicle and confirm if the steering flutter condition is corrected. If the condition is not corrected, go to step 7. If the condition is corrected, return the vehicle to the customer.

7. Starting from the driver's side of the vehicle, loosen the 4 steering rack mounting bolts until they can be turned by hand.

8. With the vehicle on the ground and stopped, cycle the steering wheel from lock to lock 6 times. Return the steering wheel to the center position.





9. Torque the steering rack mount bolts in sequence starting from the driver's side of the vehicle to the torque specifications shown.

10. Drive the vehicle and confirm that the steering flutter condition is corrected.