Classification:

Reference:

Date:

ST19-002

ITB19-032

October 18, 2019

2018-2019 QX80; STEERING WHEEL JUDDERS
WHILE TURNING AT LOW SPEED
APPLIED VEHICLES:
APPLIED VIN AND
DATES:

2018-2019 QX80 (Z62)
Built before: JN8AZ2NE(*)K9 230352 / October 23, 2018
JN8AZ2NF(*)K9 683168 / October 23, 2018

IF YOU CONFIRM
The vehicle has a judder in the steering wheel while turning and only at speeds between 1-9 MPH.

ACTION
Replace the power steering high pressure piping with the part listed in the Parts Information on page 6.
IMPORTANT: Inform the customer that this repair will reduce, but does not eliminate the amount of judder
felt in the steering wheel during low speed parking lot maneuvers.

IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing.
You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to
successfully completing this repair.
Infiniti Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are properly trained
individuals who have the equipment, tools, safety instruction, and know-how to do a job properly and safely. NOTE: If you believe that
a described condition may apply to a particular vehicle, DO NOT assume that it does. See your Infiniti retailer to determine if this
applies to your vehicle.

1/6

A.

Power Steering Hose Diagram

Figure 1
1. Reservoir tank bracket
4. Suction hose
7. Copper washer
10. High Pressure piping

2. Reservoir tank
5. Return hose
8. Pressure sensor
11. Low pressure Piping

3. Clamp
6. Eye bolt
9. Oil cooler
12. Steering gear assembly

: Always replace after every disassembly
: N•m (kg-m, ft-lb)
: N•m (kg-m, in-lb)

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ITB19-032

SERVICE PROCEDURE

1.

Place the vehicle on a lift.

2.

Open the hood.

3.

Raise the vehicle to a comfortable work height.

4.

Turn the right front wheel to the right as shown
in Figure 2.
Figure 2

5.

Place a pan under the vehicle to catch any lost power steering fluid.

6.

Unbolt the power steering high pressure piping eye-bolt (see Figure 4).


The eye-bolt is 24 mm.

The plastic fender protector has been pulled outward in Figure 4 to allow a clear view of the
high pressure piping eye-bolt and power steering pressure sensor’s harness. Pull on the fender
protector just enough to access the eye-bolt and connector. Do not pull any further or a crease may form
and the protector may be permanently damaged.
7.

Disconnect the power steering pressure sensor’s harness connector (see Figure 4).
Pressure sensor
harness connector

Plastic fender
protector
High pressure
piping eye-bolt

Figure 3

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Figure 4

ITB19-032

8.

Front of
vehicle

Raise the vehicle to a comfortable height and
remove the engine under cover.


The engine under cover is attached with
four (4) 13 mm bolts.

NOTE: Figure 5 is shown with the
engine under cover removed.
View is looking up at underside of engine
Figure 5
9.

10.

Remove the high pressure piping eye-bolt and one (1) high pressure piping bracket bolt (see Figure 6),
and then remove the high pressure piping from the vehicle.


The eye-bolt is 14 mm.



The bracket bolt is 10 mm.
Transfer the rubber bracket bushing to the new high pressure piping.

High pressure piping
bracket bolt

High pressure
piping eye-bolt

Figure 6

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ITB19-032

11.

Install the new high pressure hose listed in the Parts Information section of this bulletin below.


Refer to the Power Steering Hose Diagram on page 2 for the component specific torque
specification.

12.

Fill the power steering reservoir to the appropriate level.

13.

Start the engine and slowly turn the steering wheel from side to side to purge any air from the power
steering system.

14.

Recheck the power steering fluid level and fill as needed.

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ITB19-032

A.

PARTS INFORMATION

(1)
(2)
(3)
(4)
(5)

DESCRIPTION

PART NUMBER

QUANTITY

High Pressure Piping

(1)

1

Copper Washer

49726-Y0100

2

Copper Washer

49726-50W00

2

Nissan Power Steering Fluid (2) (3)

999MP-AG000P (4)

(5)

Reference the electronic parts catalog and use the VIN to look up the vehicle specific high pressure
piping.
Order this item through the Infiniti Maintenance Advantage program: Phone 877-INF-IMA1 (877-4634621). Website order via link on the dealer portal; www.NNAnet.com and click on the “Maintenance
Advantage-Tire/Battery/Chemical” link.
For warranty repairs, Nissan Power Steering Fluid must be used. For customer pay repairs, Nissan
Power Steering Fluid or an equivalent is recommended.
Bill out Nissan Power Steering Fluid under expense code 004. Do not include the Nissan Power Steering
Fluid part number on the claim.
One container of Nissan Power Steering Fluid is good for approximately 8 repairs.

CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
DESCRIPTION
Install High Pressure Piping
(1)
(2)

PFP
(1)

OP CODE
QE36AA

SYM
ZE

DIA
32

FRT
(2)

Reference the Electronic Parts Catalog and use the High Pressure Piping (49720-*****) as the Primary
Failed Part (PFP).
Reference the current Nissan Warranty Flat Rate Manual and use the indicated Flat Rate Time (FRT).

EXPENSE CODE
EXPENSE CODE
004

DESCRIPTION
Nissan Power Steering Fluid

MAX AMOUNT
$0.75

AMENDMENT HISTORY
PUBLISHED DATE

REFERENCE

DESCRIPTION

October 18, 2019

NTB19-032

Original bulletin published

6/6

ITB19-032