NTB15-079e

Classification:
Reference:
EC14-007e
Date:
NTB15-079e
April 24, 2020
2005-2019 FRONTIER; MIL ON WITH DTC P0448
This bulletin has been amended. See AMENDMENT HISTORY on the last page.
Please discard previous versions of this bulletin.
APPLIED VEHICLES: 2005-2019 Frontier (D40)
IF YOU CONFIRM
The MIL is ON with DTC P0448 (EVAP canister vent control valve close) stored in the
ECM.
ACTION
1. Replace the EVAP canister (canister).
2. Remove the canister filter.
3. Attach the EPT foam seal to new fuel filler pipe.
4. Replace the fuel filler pipe, canister drain hose, and fuel filler cap (on some model
years).
5. Erase the DTC.
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 (starting
on page 2) 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.
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SERVICE PROCEDURE
IMPORTANT: Follow all warnings, cautions, and notes in the Electronic Service
Manual (ESM) when working on or near a fuel system and EVAP system
components, such as a fuel tank and vent control valve.
1. Remove the following parts from the vehicle:
NOTE: The fuel tank must be ¾ full or less to prevent spillage before removing the fuel
filler tube.

Fuel filler pipe

Canister with vent control valve and EVAP control system pressure sensor (pressure
sensor)

Canister drain hose(s) and filter (if equipped) that connect to the vent control valve
 If needed, refer to the ESM, sections ENGINE > ENGINE CONTROL SYSTEM >
REMOVAL AND INSTALLATION and ENGINE > FUEL SYSTEM > REMOVAL
AND INSTALLATION (as it applies), for removal procedures.
NOTE:
o It is recommended to detach the grommet from the fuel filler pipe after
detaching the fuel filler pipe from the vehicle. This makes it easier to remove
the fuel filler pipe from the vehicle.
o Cover the fuel tank’s rubber filler hose with a clean shop rag or suitable
covering once the fuel filler pipe has been detached from it.
o The new canister drain hose (drain hose) replaces the drain hose(s) and filter
(if equipped) that connect to the vent control valve. The existing drain hose(s)
and filter are not reinstalled.
NOTE: There is no need to remove the bracket or fitting to which the filter and
drain hose mount and connect (see Figure 2).
Figures 1 and 2 show the long wheel base model. The short wheel base model is similar.
Remove, do not
reuse/reinstall
No need
to remove
Under truck bed
inside left rear
wheel well area
Figure 1
Figure 2
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2. Wrap EPT foam (see PARTS
INFORMATION on page 9) around the
top of the new fuel filler pipe where
indicated in Figure 3.
IMPORTANT: The EPT foam must
completely seal the filler pipe drain
when applied. Read steps 2a–2f before
proceeding.
Filler pipe
drain box
Drain hose
fitting
a. Peel the self-adhesive protective
sheet back several inches from the
end of the EPT foam strip.
This area will
be sealed
Figure 3
NOTE: The EPT foam is the same on
both ends.
b. Insert the EPT foam strip so it seals
tightly against the drain hose fitting.
EPT foam strip
sealed against
drain hose fitting
Drain hose
fitting
Figure 4
c. Wrap the top of the EPT foam strip
tightly around the drain hose fitting.
Wrap the EPT foam
strip around the
drain hose fitting
Figure 5
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NTB15-079e
d. Peel the self-adhesive protective
sheet and then wrap the EPT foam
360 degrees around the filler pipe
drain box.

Wrap the EPT foam so that its
width extends above and below
the fuel filler pipe drain box that is
shown in Figure 3 on the previous
page.
NOTE: The EPT wrap will fit tightly
around the top of the fuel filler pipe
and the fuel filler pipe drain box;
slack at the bottom will be
removed in the next step.

Top of fuel filler
pipe
EPT foam
strip sealed
against drain
hose fitting
Figure 6
End the wrap with the EPT foam
tightly sealed against the drain
hose fitting.
Start here.
Work evenly
around to the
opposite side.
e. Press the EPT foam adhesive to the
fuel filler pipe evenly, pushing the
slack around to the opposite side.
Figure 7
f. Close the excessive EPT foam by
pinching the excess together as
shown in Figure 8, and then press the
remaining EPT adhesive to the fuel
filler pipe.
IMPORTANT: The EPT foam must
be completely sealed at the top,
bottom and to the drain fitting.
Confirm that no openings are
present.
Pinch EPT foam
together
Figure 8
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NTB15-079e
3. Install the new fuel filler pipe.

Before installing, cover the fuel filler pipe opening (grommet end) with a clean
shop rag or other suitable covering.

Refer to the ESM, section ENGINE > FUEL SYSTEM > REMOVAL AND
INSTALLATION > FUEL TANK > Removal and Installation, for the installation
procedure.

Make sure the grommet is positioned as shown in Figure 9.
NOTE: It is recommended to install the grommet to the body, and then the fuel filler
pipe to the grommet.
Notch at 12 o’clock
position
Grommet
Hole at 6 o’clock
position
Figure 9
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NTB15-079e
4. Connect and route the new drain hose to the fuel filler pipe (see Figures 10 and 11, as
they apply).
New drain
New
hosehose
and
and filler
fuel
fuel
filler
pipe
pipe
Bolt torque:
2005-2011: 4.5 N•m (46 kg-m, 40 in lbs)
2012-2019: 5.0 N•m (51 kg-m, 44 in lbs)
Left rear wheel
well area
Clip (white
stripe on
drain hose
hidden)
Frame
Figure 10: King Cab and long wheel base Crew Cab
New drain
New
hosehose
and
and filler
fuel
fuel
filler
pipe
pipe
Clip (white
stripe on
drain hose
hidden)
Left rear wheel
well area
Bolt torque:
2005-2011: 4.5 N•m (46 kg-m,
40 in lbs)
2012-2019: 5.0 N•m (51 kg-m,
44 in lbs)
Frame
Figure 11: Short wheel base Crew Cab
5. Reinstall the original vent control valve and pressure sensor on the new canister.
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6. Route the new drain hose and attach with clips as shown in Figures 12 and 13 (as they
apply).

The clips are listed in PARTS INFORMATION on page 9.
NOTE: The clips are to be placed on the white stripes (hidden) on the new hose,
and to the existing hose and pipe going toward the engine.

Figures 12 and 13 are viewed while looking up under the vehicle bed.
Hole
Existing
at 6
EVAP
O’clock
hoses
Clip (white
stripe on new
drain hose
hidden)
Clip (white
stripe on new
drain hose
hidden)
Pressure
sensor
connector
Front of
vehicle
New fuel
filler pipe
New drain
hose routing
Bracket for
canister
Vent control
valve connector
Figure 12: King Cab and long wheel base Crew Cab
Vent control valve
connector (hidden)
Existing
EVAP hose
Front of
vehicle
Existing
EVAP hose
New fuel
filler pipe
Pressure
sensor
connector
New canister
drain hose
Bracket for
canister
Figure 13: Short wheel base Crew Cab
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NTB15-079e
7. Connect the following:
 New drain hose to vent control valve
 Harness connectors to vent control valve and pressure sensor
 Two (2) existing EVAP hoses to canister
8. Install the canister in place.
 Make sure the hoses and their clips are routed and placed correctly.
 Canister bolt torque: 13.5 N•m (1.4 kg-m, 10 ft lbs)
Figure 14: King Cab and long wheel base Crew Cab
Figure 15: Short wheel base Crew Cab
9. Install the tire/wheel assembly. Wheel nut tightening torque: 133 N•m (14 kg-m,
98 ft-lb).
10. 2011 and older vehicles: Replace the fuel filler cap with a new one (see PARTS
INFORMATION on page 9).
11. Erase the DTC.
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PARTS INFORMATION
MODEL
DESCRIPTION
TUBE ASSY-FILLER
(Fuel Filler Pipe)
HOSE-DRAIN, CANISTER
Long Wheel Base
CAP ASSY-FILLER *
Crew Cab & King Cab
CLIP
CLIP
CLIP-HOSE
TUBE ASSY-FILLER
(Fuel Filler Pipe)
Short Wheel Base
HOSE-DRAIN, CANISTER
Crew Cab
CAP ASSY-FILLER *
CANISTER ASSY E
CLAMP
All
EPT FOAM
* 2011 and older vehicles only.
PART NUMBER
QUANTITY
17221-9BF0A
1
18791-9BF1A
17251-9BD0E
24220-9FP0B
24220-9FP0C
24220 9FP0D
1
1
1
1
1
17221-9BG0A
1
18791-9BG0A
17251-ZZ62D
14950-EA20B
16439-7S000
17295-EZ30C
1
1
1
1
1
Short wheel base
Crew Cab
Long wheel base
King Cab and
Crew Cab
Figure 16
Long wheel base
King Cab and
Crew Cab
Short wheel base
Crew Cab
Figure 17
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CLAIMS INFORMATION
Submit a Primary Part (PP) type line claim using the following claims coding:
DESCRIPTION
PFP
OP CODE SYM DIA FRT
REPAIR FOR "MIL ON WITH DTC P0448"
(1)
FX51AA
HD
32
0.9
(1) Reference the Parts Information Table and use the TUBE ASSY-FILLER P/N as the
PFP.
AMENDMENT HISTORY
PUBLISHED DATE
REFERENCE
DESCRIPTION
September 18, 2015
NTB15-079
Original bulletin published
February 19, 2016
NTB15-079a
Bulletin cancelled
N/A
NTB15-079b
No changes made. Bulletin not published
November 30, 2016
NTB15-079c
Steps added to apply EPT foam to seal the fuel
filler pipe, and minor changes made throughout
February 4, 2019
NTB15-079d
APPLIED VEHICLES section revised
April 24, 2020
NTB15-079e
References to vent control valve and pressure
sensor replacement removed from page 1,
page 5 and PARTS INFORMATION
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