>) TOYOTA

T-SB-0178-13 December 12, 2013 Technical Service Bulletin

Steering Wheel Flutter at Highway Speeds

Service
Category Steering

Toyota Supports
Section Steering Gear/Linkage Market USA ASE Certification

Applicability

YEAR(S) MODEL(S) ADDITIONAL INFORMATION
2010 — 2013 FJ Cruiser

Introduction

Some vehicles may exhibit excessive steering flutter condition, while being driven at approximately
55 — 70 mph. In some cases, this condition is caused by a wheel imbalance or RFV {Radial Force
Variation) that is out of range. If the tire and wheel assembly is satisfactory, a steering control valve
preload spring is available to reduce the steering flutter felt through the steering wheel.

Production Change Information

This bulletin applies to vehicles produced BEFORE the Production Change Effective VINs shown

below.
TRANSMISSION DRIVETRAIN PRODUCTION CHANGE EFFECTIVE VIN
SAT i) JTEBU4BF#DK170179
6MT JTEBU4BF#DK170230
SAT 2wD JTEZU4BFHDKO13406
Parts Information
PART NUMBER PART NAME ary
44215-60040 Spring, Control Valve Pre-Set
90460-60008 Clamp, Hose 2

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Steering Wheel Flutter at Highway Speeds

Warranty Information

OP CODE DESCRIPTION DRIVETRAIN | TIME OFP 1 T2

$T1310 . 4wD 4.0 44200-35100

Sri R & R Steering Rack Preload Spring nD aa 44200-35101 9B | 42
NOTE

Use the Op Code above ONLY for steering control valve preset spring replacement. For all other
repairs, use the Flat Rate Manual to select the Op Code relevant to the work performed.

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 Ilmited to occurrence of the specified condition described in this
bulletin.

Required Tools & Equipment

SPECIAL SERVICE TOOLS (SST) PART NUMBER ary

Rack & Pinion Holding Tool* 09612-00012-01 1
Hex Wrench 09612-10022-02 1
Steering Socket 09616-00010-02 1
Variable Open Wrench* 09922-10010-01 1
Beam Torque Wrench* 00002-02955 1
Drive Shaft Boot Clamping Tool (or equivalent) 09521-24010 1
Haweka Flange Plate #2 (40 mm)* 02002-02400 1
Oil Filter Wrench* 09228-06500-02 or 09228-06501 1

* Essential SST.

NOTE
Additional SSTs may be ordered by calling 1-800-933-8335.

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Steering Wheel Flutter at Highway Speeds

Required Tools & Equipment (Continued)

REQUIRED TOOLS & EQUIPMENT QUANTITY
High Lift Transmission Jack 1
Utility Stand 1
Hunter Low Taper Cone #169 (or equivalent) 1
REQUIRED MATERIAL QUANTITY
Toyota een el aloao q Saullo Bond 1344, As Needed
Toyota Genuine Differential Gear Oil LT SAE 75W-85 1.43 to 1.53 U.S. gts
API GL-5, or equivalent {1.35 to 1.45 liters, 1.18 to 1.27 Imp. qts.)
Power Steering Oil, Dexron Il, Ill, or equivalent As Needed
MP (Multi-Purpose) Grease As Needed
OW-20 Synthetic Oil (Only) 6.4 gts

Repair Procedure Overview

1. Check for source of steering flutter — if tires/wheels or other causes are eliminated as the
source of flutter, proceed to next step.

. Remove the steering rack.
. Replace the rack guide preload spring with updated spring.
. Check steering rack preload.

na bk wd

. Reinstall the steering rack.

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Steering Wheel Flutter at Highway Speeds

Repair Procedure
Preparation: Measuring Balance and RFV
1. Confirm vibration/flutter complaint.

2. Warm up tires to normal operating temperatures to remove cold-soak flat spots. (Drive 10
minutes at 65 mph.)

NOTE

Road test the vehicle at the same speeds and on the same type of road surfaces as the
customer complaint.

Does vibration/flutter decrease after the tires warm up?

* YES — Tires are temporarily flat spotting. This bulletin does NOT apply. Return vehicle to
customer.

+ NO — Go to step 3.

3. If available, proceed with checking the wheel balance and RFV (Radial Force Variation). Balance
the tire and wheel assembly using the correct wheel balance attachments.

A. Mount the tire/wheel assembly to the balancer machine as illustrated in Figure 2.

Figure 1.
NOTE

When balancing the tire, ensure that
the correct cone adapter is being
used. Make sure to use a low taper
balancer cone.

1 Low Taper Balancer Cone
2 =| High Taper Balancer Cone

HINT

When using the balance machine, turn OFF the Weight Miser®, SmartWeight®, or other
similar features for better accuracy.

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Steering Wheel Flutter at Highway Speeds

Repair Procedure

Preparation: Measuring Balance and RFV (Continued)

Figure 2.
1 Balancer 4 | Haweka Adapter
2 | Low Taper Balancer Cone S$ | Balancer Clamp

3. | Outside of Wheel

ls RFV within acceptable levels?

NOTE

RFV limit is 19 Ibs. Be aware that this limit is based on recommendations from automotive
industry standards and tire manufacturers, Do NOT use this Iimit as the only basis for
tire replacement.

+ YES — Continue to next step.

+ NO— Phase match tires until the wheel tire assembly is within acceptable levels.

NOTE

If root cause was a balance or RFV out of range, use the Op Code listed in the Flat Rate
Manual for wheel balance adjustment. Do NOT use the Op Code listed in this bulletin, if
the steering control valve preset spring is NOT replaced.

B. Test drive the vehicle again. If a vibration remains, is the vibration/flutter felt primarily through
the steering wheel?

* YES — Proceed to the next section to replace the power steering control valve preset
spring.

+ NO— Vibration source may be coming from elsewhere. Refer to the Repair Manual
to diagnose source of vibration.

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Steering Wheel Flutter at Highway Speeds

Repair Procedure (Continued)

Power Steering Rack Removal

=

. Place the front wheels in a straight ahead position.
. Use a steering wheel holder to prevent steering wheel from turning.
. Remove the engine under cover sub-assembly.

2
3
4. Remove the front wheels.
5. Remove fan shroud bolts.
6.

. Remove wiring harness ground bolt and wire Figura 3.
harness mount.

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Steering Wheel Flutter at Highway Speeds

Repair Procedure

Power Steering Rack Removal (Continued)

7. Remove brake line mounting bolts and loosen Figure 4.
bolts on steering shaft.

8. Remove 2 motor mount bolts.

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Steering Wheel Flutter at Highway Speeds

Repair Procedure

Power Steering Rack Removal (Continued)

9. Using the utility stand, lift engine/transmission Figure 6.
assembly.

NOTICE

Watch fan and fan shroud clearance to insure
shroud is NOT cracked or broken by fan
while lifting.

10. Put matchmarks on the No. 2 steering Figure 7. Matchmark
intermediate shaft and power steering rack to aid
during reassembly.

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Steering Wheel Flutter at Highway Speeds

Repair Procedure

Power Steering Rack Removal (Continued)

11. Remove the pinch bolt that attaches the intermediate shaft to the input shaft of the power
steering rack.

Figure 8.

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Steering Wheel Flutter at Highway Speeds

Repair Procedure

Power Steering Rack Removal (Continued)

12. Remove three bolts securing pressure feed tubes on the steering rack linkage.
Figure 9.

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Steering Wheel Flutter at Highway Speeds

Repair Procedure

Power Steering Rack Removal (Continued)

13. Remove the engine under cover sub-assembly Figura 10.
mounting brackets. =

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Steering Wheel Flutter at Highway Speeds

Repair Procedure

Power Steering Rack Removal (Continued)

14. Remove pressure feed tubes on the steering rack Figure 11.
linkage and drain fluid.