GROUP
CHA

MODEL
See List Below

NUMBER
091 (Rev 2, 04/24/2020)

DATE
November 2018

TECHNICAL SERVICE BULLETIN
STEERING GEAR YOKE PLUG AND
ASSEMBLY REPLACEMENT

SUBJECT:

 NOTICE
This bulletin has been revised to include additional information. New/revised
sections of this bulletin are indicated by a black bar in the margin area.
This bulletin provides the procedure to replace the steering gear box yoke plug and assembly
on some models listed below, which may exhibit a ticking noise while turning the steering
wheel with the vehicle stopped. This condition is caused by a worn lining on the steering gear
box yoke assembly. Follow the procedure outlined in this bulletin to replace the steering gear
box yoke plug and assembly with updated parts.
Video File
Steering ticking noise and repair procedure

Models

Production Dates

Optima (QF)

September 2011 through October 2015

Optima (TF)

January 2010 through June 2015

Optima Hybrid (TF HEV)

August 2010 through June 2015

Cadenza (VG)

March 2013 through December 2015

Sorento (UMa)

February 2015 through September 2017

File Under:
Circulate To:

X General Manager


X Service Advisors


X Technicians


X Service Manager


X Parts Manager


X Body Shop Manager 
X Fleet Repair


Page 2 of 10
SUBJECT:

STEERING GEAR YOKE PLUG AND ASSEMBLY REPLACEMENT

Repair Procedure:
1. With the vehicle in the lowered position
on a vehicle lift, mark the universal joint
and pinion shaft in series (for
reassembly) and then remove the joint
retaining bolt (A) and detach the
universal joint assembly from the pinion
of the steering gear box.

A

Tightening torque for bolt (A) :
Refer to the “Steering System → Electric
Steering Wheel → Steering Gear Box →
Repair procedures” chapter in the
applicable Shop Manual on KGIS for the
tightening torque.

2.

Remove the two (2) mounting bolts (B)
and one (1) lower control arm mounting
bolt (C) on each side and remove the two
(2) subframe stays.

Tightening torque for bolts (B & C):
Refer to the “Steering System → Electric
Steering Wheel → Steering Gear Box →
Repair procedures” chapter in the
applicable Shop Manual on KGIS for the
tightening torque.

B

3.

C

If applicable, detach the exhaust pipe
hanger (D) from the subframe.

D

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: CHA091 (Rev 2) Multiple Models November 2018

Page 3 of 10
SUBJECT:

4.

STEERING GEAR YOKE PLUG AND ASSEMBLY REPLACEMENT

Support the subframe (E) with a suitable
powertrain lift (F).

E

F

5.

Remove the two (2) subframe retaining
nuts (G) and carefully lower the
subframe.

Tightening torque for nuts (G):
Refer to the “Steering System →
Electric Steering Wheel → Steering
Gear Box → Repair procedures”
chapter in the applicable Shop Manual
on KGIS for the tightening torque.

6.

G

Remove the four (4) stabilizer bar
mounting bolts at the subframe.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: CHA091 (Rev 2) Multiple Models November 2018

Page 4 of 10
SUBJECT:

STEERING GEAR YOKE PLUG AND ASSEMBLY REPLACEMENT

7.

With the four (4) steering gear assembly
mounting bolts removed, place a 2x4
block of wood underneath the steering
gear assembly for stability of the
assembly during this repair procedure.

8.

Remove the locking nut (H) using the
locking nut removal tool (57718
2W009FFF).

H

9.

Using the 24mm hexagon bit socket
(HXD24), remove and discard the yoke
plug (I) and discard.

I

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: CHA091 (Rev 2) Multiple Models November 2018

Page 5 of 10
SUBJECT:

STEERING GEAR YOKE PLUG AND ASSEMBLY REPLACEMENT

10. Remove the yoke spring (J) and set
aside for reinstallation.

J

11. Clean the threads (K) of the yoke
housing with a clean cloth and brake
cleaner. Use compressed air to ensure
the assembly surface is dry and free of
debris.

K

12. Remove the yoke assembly and shims
(J) and discard.

J

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: CHA091 (Rev 2) Multiple Models November 2018

Page 6 of 10
SUBJECT:

STEERING GEAR YOKE PLUG AND ASSEMBLY REPLACEMENT

13. Apply lubricant to the bottom and sides
of the new improved yoke assembly (K).

K

K

14. Install the improved yoke assembly (K)
into the yoke housing and then apply a
small amount of lubricant to the top of
the yoke assembly.

K

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: CHA091 (Rev 2) Multiple Models November 2018

Page 7 of 10
SUBJECT:

STEERING GEAR YOKE PLUG AND ASSEMBLY REPLACEMENT

15. If necessary, use a short socket
extension and a rubber mallet to seat the
yoke assembly (K) fully.

16. Reinstall the yoke spring (J) removed in
step 10 of this procedure.

J

17. Partially install the new yoke plug (L) by
hand to prevent cross-threading of the
plug and housing threads.

L

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: CHA091 (Rev 2) Multiple Models November 2018

Page 8 of 10
SUBJECT:

STEERING GEAR YOKE PLUG AND ASSEMBLY REPLACEMENT

18. Tighten and torque the yoke plug (L) to
specifications.

Tightening torque for plug (L):
36.9 lb.ft (50.0 N.m, 5.1 kgf.m)

19. With a marker, mark a line on the
housing in line with groove 1 (blue mark
#1) of the plug.

1

2

20. Loosen the plug approximately 1/4 of an
inch and align the mark on the housing
with groove 2 (blue mark #2) of the plug.

2
1

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: CHA091 (Rev 2) Multiple Models November 2018

Page 9 of 10
SUBJECT:

STEERING GEAR YOKE PLUG AND ASSEMBLY REPLACEMENT

21. Partially install the new locking nut (M)
by hand to prevent cross-threading of the
nut and plug threads.

M

22. While holding the plug in place, torque
the locking nut (M) to specifications.
Tightening torque for locking nut (M):
30.6 lb.ft (55.0 N.m, 5.6 kgf.m)

23. Reinstall all removed components in the reverse order of removal.
24. Confirm proper operation of vehicle.

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: CHA091 (Rev 2) Multiple Models November 2018

Page 10 of 10

STEERING GEAR YOKE PLUG AND ASSEMBLY REPLACEMENT

SUBJECT:

AFFECTED VEHICLE RANGE:
Model

Production Date Range

Optima (QF)

September 2011 through October 2015

Optima (TF)

January 2010 through June 2015

Optima Hybrid (TF HEV)

August 2010 through June 2015

Cadenza (VG)

March 2013 through December 2015

Sorento (UMa)

February 2015 through September 2017

REQUIRED TOOL:
Tool Name

Tool Number

Locknut Tool

Figure

Comments

57718 2W009FFF

Auto-shipped to Dealer.
For order or replacement,
contact
Snap-on Business Solutions
at (888) 542-1011.

HXD24

For order or replacement,
contact
Snap-on Business Solutions
at (888) 542-1011.

24mm External
Hex Socket

REQUIRED PART:
Part Name

Part Number

Steering Gear Yoke Plug
and Assembly Kit

56570 2W000FFF

Figure

WARRANTY INFORMATION:
N Code: ZZ5 C Code: C24
Model

Claim
Type

QF, TF,
& TF
HEV
VG

UMa

Causal
P/N

Qty.

Repair
Description

Labor Op
Code

Op
Time

Replacement
P/N

Qty.

0

Steering Gear Yoke
Plug and Assembly
Replacement

56500F11

1.7
M/H

56570
2W000FFF

1

57719
3Q000

W

57719
3V000
57737
C1000

Printed TSB copy is for reference only; information may be updated at any time. Always refer to KGIS for the latest information.

TSB: CHA091 (Rev 2) Multiple Models November 2018