ITB21-020

Classification:
Reference:
Date:
EM21-002
ITB21-020
September 9, 2021
FUEL AND/OR OIL SMELL IS PRESENT
WHEN THE VEHICLE IS PARKED IN A CLOSED GARAGE
APPLIED VEHICLES:
2019-2021 QX50 (J55)
IF YOU CONFIRM
The client states that a fuel and/or oil smell is present when the vehicle is parked in a closed garage, even
though there are no fuel, oil, or EVAP leaks.
ACTION
Replace the rocker cover assembly and the PCV separator with those listed in the PARTS INFORMATION,
and eliminate PCV hose 2.
NOTE: PCV hose 2 (number 15 in Figure 1 on page 2) is no longer required with the parts listed in the
PARTS NFORMATION.
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.
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SERVICE PROCEDURE
1.
Replace the rocker cover assembly (number 6 in Figure 1) with the one listed in the PARTS
INFORMATION.

2.
Refer to the ESM, section ENGINE > ENGINE MECHANICAL > KR20DDET - REMOVAL AND
INSTALLATION > ROCKER COVER
Replace PCV separator (number 9 in Figure 1) with the one listed in the PARTS INFORMATION.

Refer to the ESM, section ENGINE > ENGINE MECHANICAL > KR20DDET > REMOVAL AND
INSTALLATION > PCV SEPARATOR
NOTE: PCV hose 2 (number 15 in Figure 1) is no longer required with the parts listed in the PARTS
INFORMATION.
PCV hose 2
Figure 1
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ITB21-020
PARTS INFORMATION
(1)
DESCRIPTION
PART NUMBER
QUANTITY
Rocker Cover Assembly
13264-5NA2A
1
Rocker Cover Gasket
13270-5TA0A
1
PCV Separator
11830-5NA1A
1
PCV Separator Gasket
13270-5NA0A
1
Intake Manifold Gasket
14035-5NA0A
4
Nissan Long Life Coolant
999MPL255OOP (1)
As needed
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.
CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
DESCRIPTION
PFP
Replace Valve Cover
(2)
AM50AA
(1)
Replace PCV Separator
(1)
OP CODE
AB16AA
SYM
DIA
FRT
ZE
32
(2)
Reference the electronic parts catalog and use the PCV Separator (11830-*****) as the Primary Failed
Part (PFP).
Reference the current Infiniti Warranty Flat Rate Manual and use the indicated Flat Rate Time (FRT).
AMENDMENT HISTORY
PUBLISHED DATE
REFERENCE
September 9, 2021
ITB21-020
DESCRIPTION
Original bulletin published
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ITB21-020