NTB16-023

Classification:
Reference:
ST15-008
Date:
NTB16-023
March 8, 2016
NISSAN; POWER STEERING NOISE HEARD INSIDE VEHICLE
WITH WINDOWS CLOSED
APPLIED
VEHICLES:
APPLIED VIN
AND DATE:
2013-2015 Altima (L33)
2013-2015 Pathfinder (L52)
2014 Pathfinder hybrid (L52)
2015 Murano (Z52)
2013-2014 Applied Vehicles, All
2015 Altima built before 1N4BL3AP(*)FC 496399 / Aug 24, 2015
1N4AL3AP(*)FN 900527 / Aug 20, 2015
2015 Pathfinder built before 5N1AR2M(*)(*)FC 716791 / Oct 17, 2015
2015 Murano built before 5N1AZ2M(*)(*)FN 276211 / Oct 12, 2015
IF YOU CONFIRM
A customer concern of while turning the steering wheel or when driving at low speed
(straight or turning), a high pitch power steering noise can be heard.

Only while seated inside the vehicle
And

With all of the windows up
NOTE: If the audio and/or HVAC systems are turned ON it may be difficult to hear
this issue.
ACTION
Install an Insulator onto the end of the power steering pump motor housing with the Service
Procedure starting on the next page.
NOTE: In addition to installing an Insulator per this bulletin:
 If you are working on a 2013 Altima, the information in NTB13-017 may apply.
 If you are working on a 2014 Altima, the information in NTB14-053 may apply.
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.
Nissan 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 Nissan dealer to determine if this applies to your vehicle.
1/6
SERVICE PROCEDURE
Altima and Murano
NOTE: For Pathfinder, go to page 4.
Power steering
pump cover
1. Remove the power steering pump cover
(if equipped) to access the power
steering pump motor housing.

Hose attachment
points
Two hose attachment points and two
clips.
Front of
vehicle
Two clips
Figure 1
2. Clean the area where the adhesive will attach (Figure 2, and highlighted in red).

Use 50% isopropyl alcohol and water, and a clean cloth.
NOTE: Windshield washer fluid tank fill spout can be removed if additional access is
necessary.
Windshield
washer fluid
tank fill spout
Clean
this area
Front of
vehicle
Figure 2
2/6
NTB16-023
Adhesive
backing
3. Remove the adhesive backing from the
Insulator.
Figure 3
4. Attach the Insulator onto the end of the
power steering pump motor housing
(Figure 4).
Figure 4
5. Reinstall power steering pump cover in
the reverse order (if equipped).
3/6
NTB16-023
Pathfinder
1. Is the vehicle a hybrid?
YES: Remove the cover over the power
steering pump motor housing by
lifting vertically to detach two
integral clips.
NOTE: For hybrid only, Figure 5
shown with cover already removed.
NO: Proceed to step 2.
Front of
vehicle
2. Clean the end of the power steering
pump motor housing.

Power steering
pump assembly
Figure 5
Clean the area where the adhesive
will attach (Figure 6, and highlighted
in red).
NOTE: Use 50% isopropyl alcohol
and water) and a clean cloth.
Front of
vehicle
Clean
this area
Figure 6
4/6
NTB16-023
Adhesive
backing
3. Remove the adhesive backing from the
Insulator.
Figure 7
4. Attach the Insulator onto the end of the
power steering pump motor housing
(Figure 8).
Figure 8
5. Reinstall power steering pump cover in
the reverse order (hybrid only).
5/6
NTB16-023
PARTS INFORMATION
DESCRIPTION
Insulator
PART #
49128-5BC0A
QUANTITY
1
CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
DESCRIPTION
PFP
OP CODE SYM DIA
FRT
Install Insulator
(1)
QX37AA
ZL
32
0.2
(1) Refer to the electronic parts catalog (FAST) and use the Power Steering Pump 49110 –
XXXXX assembly part number as the Primary Failed Part (PFP).
6/6
NTB16-023