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NHTSA ID Number: 10235719

Manufacturer Communication Number: E273

TSB/Document Date: 2023-05-05


Summary

Canadian Registered Chassis Only, PACCAReBay logo MX-13 and MX-11 Fix-As-Fail Notification ​Fix-As-Fail – Per Environment and Climate Change Canada (ECCC) regulations and guidance (Canadian Environmental Protection Act, 1999 (CEPA)), a letter has been provided to owners of Canadian registered chassis that provides a list of emissions components that have been reported (to ECCC) as having a defect.


Date of Letter

Subject:

PSB E273 – Canadian Registered Chassis Only, PACCAReBay logo MX-13 and MX-11 Fix-As-Fail Notification
EXPIRATION DATE: NONE
The VINs are listed on the back of this page
Customer name
Customer address
City, State ZIP

Dear Kenworth Customer,
This notice is sent to you in accordance with the requirements of the Canadian Environmental Protection Act, 1999. In compliance with Environment and
Climate Change Canada (ECCC), KenwortheBay logo is notifying you of the pollution risk for the components listed below. However, your warranty coverage remains
the same.
NOTE: This is not a recall or campaign. This is not a pro-active replacement of parts. Rather, if you experience the Malfunction Indicator Lamp
(MIL) turning on AND a Kenworth dealer determines the cause is due to the defective part, then the dealer can replace the defective part.
KenwortheBay logo Truck Company has determined that a defect, which relates to a prescribed emission standard, exists in certain Engine Model Year 2013-2018
PACCAReBay logo MX-13 and MX-11 engines. Your vehicle has been identified as having one or more the suspect parts listed in the table below.
Table 1 Description of failure
Engine
Engine
Model Year
Model

Sensor

Result of Failure

MX-13

NOx
sensor after
catalyst

The oxides of nitrogen (NOx) sensor failure will trigger Malfunction Indicator lamp
MIL) and torque derate. Prompt repair of NOx sensor will limit the potential
emission impact.

2016, 2017, 2018

MX-11, MX13

(2)

2017

MX-11, MX13

(2)

2017

MX-13

(2)

2017, 2018

MX-13

(2)

2013, 2014,
2015, 2016

2016

2017
(1)
(2)

(2)

PM sensor
DPF Module

A cracked DPF may allow exhaust gas with high level of particulate matter to exit
the tailpipe. The failure will also trigger a diagnostic fault and illuminate the MIL to
alert the driver for prompt service to contain emission impact.

DPF DP sensor

The Diesel Particulate Filter (DPF) pressure sensor malfunction will trigger a
diagnostic fault and illuminate the Malfunction Indicator Lamp (MIL). This may lead
to engine torque derate. Prompt repair of the DPF pressure sensor will limit the
potential emission impact.

EGR flex pipe

NOx Sensor before
catalyst
(1)

MX-13

The Particulate Matter (PM) sensor may malfunction and eventually illuminate the
Malfunction Indicator Lamp (MIL). There is no direct emission impact from sensor
failure as the sensor is not part of the emission control strategy.

(1)
MX-13
NOx Sensor before
(485hp/360kw and catalyst
above)

An EGR Flex pipe leak allows a part of untreated exhaust to vent to atmosphere.
The emission control system will continue to perform normally and emission does
not exceed the prescribed standard.
The failure of the oxides of nitrogen (NOx) Sensor before catalyst has minimal
impact on emissions over the useful life of the vehicle. The NOx sensor failure will
trigger Malfunction Indicator Lamp (MIL) and torque derate. Prompt repair of NOx
sensor will limit potential emission impact.
The failure of the oxides of nitrogen (NOx) Sensor before catalyst has minimal
impact on emissions over the useful life of the vehicle. The NOx sensor failure will
trigger Malfunction Indicator Lamp (MIL) and torque derate. Prompt repair of NOx
sensor will limit potential emission impact.

Additional components added for the E273 Fix-As-Fail coverage
Components that were included in a previous letter

COSTS
If your vehicle is within the warranty guidelines listed below, repairs will be performed at no charge to you.
• 5yr/100k mi 5yr/160k km Federal Emissions Warranty
• 2yr/250k mi 2yr/402k km Base Engine Warranty
• Applicable Active Extended Warranty
Table 2 Estimated Out of Warranty Cost
Part Name

Part Number

NOx sensor after catalyst
PM sensor
DPF DP sensor
DPF Module
EGR flex pipe
NOx sensor before catalyst

1873793 or 1954664 or 1954665 or 1954666
2044457 or 2131542
1818119
2131533
2046616
2006246

Estimated Out of Warranty Cost
(Canadian Dollars)
$1,350
$1,800
$820
$12,939
$2,953
$901

Prices may vary by dealer location. Costs shown are an estimate only and are based on a national average at the time
the original letter was sent.

If the Malfunction Indicator Lamp (MIL) illuminates, please contact your Kenworth dealer to determine if the cause is a result of one of these suspect parts. If
so, the dealer can replace the defective part(s). To find a KenwortheBay logo dealer, please visit Dealer Locator at www.Kenworth.com/dealers. Tell the dealer to
reference Bulletin E273 when making the appointment.
We regret any inconvenience that this work may cause you and appreciate your cooperation in this matter.
Thank you,

Annick Hollingsworth
Director of Service Platforms
KenwortheBay logo Truck Company

Objet :

PSB E273 – Châssis enregistrés au Canada seulement, avis de réparation-au-besoin sur moteurs MX-13 et MX-11 de PACCAReBay logo
DATE D’EXPIRATION : AUCUNE
Les NIVs sont indiqués au verso de la présente
Nom du client
Adresse du client
Ville, province, code postal

Cher client Kenworth,
Nous vous faisons parvenir cet avis conformément aux exigences de la loi canadienne 1999 relative à la protection de l’environnement. Conformément à la
réglementation relative aux changements environnementaux et climatiques du Canada (ECCC). Kenworth vous informe du risque de pollution que présentent les
composantes ci-après. Cependant, votre couverture de garantie demeure la même.
À noter : La présente n’est pas un rappel ou une campagne. Il ne s’agit pas d’un remplacement proactif de pièces. Plutôt, si vous êtes confronté au fait que le témoin
d’anomalie (MIL) se retrouve en position OUVERT ET qu’un concessionnaire Kenworth détermine qu’une défectuosité de la pièce en est la cause, celui-ci pourra alors
remplacer la pièce défectueuse.
Kenworth Truck Company a constaté qu’une défectuosité reliée à la norme prescrite relativement aux émissions est présente dans certains modèles de moteurs MX-13
et MX-11 de PACCAReBay logo des années 2013 à 2018. Votre véhicule a été identifié comme étant équipé de l’une ou plusieurs des pièces citées dans le tableauci-après.
Tableau 1 – Description de la défectuosité
Année du
Modèle de
Capteur
modèle
moteur
2013,
2014,
2015,
2016
2016,
2017,
2018

MX-13

(2Capteur

d’oxyde
d’azote après
catalyseur

Il est possible que le capteur de matières particulaires (PM) fonctionne mal et qu’il déclenche éventuellement le
témoin d’anomalie (MIL). Il n’y a pas d’impact direct sur les émissions suite à la défectuosité du capteur car
celui-ci ne fait pas partie de la stratégie relative au contrôle des émissions.

2017

(2)Module du filtre à
MX-11, MX-13 particules au diésel

2017

MX-13

2017,
2018

MX-13

Un filtre à particules au diésel craqué peut permettre au gaz d’échappement ayant un niveau élevé de
matières particulaires de s’échapper par le tuyau d’échappement arrière. La défectuosité déclenchera
également une erreur de diagnostic ainsi que l’illumination du témoin d’anomalie dans le but d’alerter le
chauffeur pour qu’il procède rapidement au service afin de limiter l’impact sur les émissions.
Le malfonctionnement du capteur de pression du filtre à particules au diésel (DPF) déclenchera une erreur
de diagnostic et l’illumination du témoin d’anomalie (MIL). Ceci peut mener à une réduction de la valeur
nominale de couple du moteur. Une réparation rapide du capteur de pression du filtre à particules au
diésel limitera l’impact potentiel sur les émissions.
Une fuite de la canalisation flexible de recirculation des gaz d’échappement permet à une partie de
l’échappement brut de se répandre dans l’atmosphère. Le système de contrôle des émissions continuera
de fonctionner normalement et l’émission n’excède pas la norme prescrite.

2016

(2)

La défectuosité du capteur d’oxyde d’azote (NOx) déclenchera le témoin d’anomalie (MIL) et la réduction de la
valeur nominale de couple. Une réparation rapide du capteur d’oxyde d’azote limitera l’impact potentiel sur les
émissions.

(2)
Capteur de
MX-11, MX-13 matières particulaires

Capteur DP du
filtre à particules au
diésel
(2)

(1)

Résultat de la défectuosité

MX-13

(2Canalisation
flexible de
recirculation des gaz
d’échappement
(1)Capteur d’oxyde
d’azote avant
catalyseur

Une défectuosité du capteur d’oxyde d’azote (NOx) avant le catalyseur a un impact minimal sur les
émissions pendant la durée de vie utile du véhicule. La défectuosité du capteur d’oxyde d’azote (NOx)
déclenchera le témoin d’anomalie (MIL) et la réduction de la valeur nominale de couple. Une réparation
rapide du capteur d’oxyde d’azote limitera l’impact potentiel sur les émissions.
(1)
Capteur d’oxyde
2017
MX-13
Une défectuosité du capteur d’oxyde d’azote (NOx) avant le catalyseur a un impact minimal sur les
(485hp/360kW d’azote avant
émissions pendant la durée de vie utile du véhicule. La défectuosité du capteur d’oxyde d’azote (NOx)
et au-dessus) catalyseur
déclenchera le témoin d’anomalie (MIL) et la réduction de la valeur nominale de couple. Une réparation
rapide du capteur d’oxyde d’azote limitera l’impact potentiel sur les émissions.
Composantes additionnelles ajoutées en vue de la protection réparer-si-défectueux E273
Composantes qui étaient incluses dans une lettre précédente

COÛTS
Si votre véhicule est couvert par les directives relatives à la garantie énumérées ci-après, cette réparation sera effectuée sans frais.

5 ans/160 000 km garantie fédérale relative aux émissions

2 ans/402 000 km garantie de base du moteur

Garantie prolongée active pertinente
Tableau 2 Coût estimé si non couvert par garantie
Nom de la pièce

Numéro de la pièce

Coût estimé si non couvert par garantie
(Les coûts sont en dollars canadiens)
Capteur d’oxyde d’azote après catalyseur
1873793 ou 1954664 ou 1954665 ou 1954666
1 350 $
Capteur de matières particulaires
2044457 ou 2131542
1 800 $
Capteur DP du filtre à particules au diésel
1818119
820 $
Module du filtre à particules au diésel
2131533
12 939 $
Canalisation flexible de recirculation des gaz d’échappement
2046616
2 953 $
Capteur d’oxyde d’azote avant catalyseur
2006246
901 $
Les prix peuvent varier selon l’emplacement du concessionnaire. Les coûts indiqués sont un estimé seulement et sont basés sur la moyenne nationale au
moment où la lettre originale a été acheminée.

Si le témoin d’anomalie (MIL) s’illumine, veuillez communiquer avec votre concessionnaire Kenworth afin de déterminer si la cause résulte de l’une de ces pièces
suspectes. Si c’est le cas, le concessionnaire peut remplacer la (les) pièce(s) défectueuse(s). Pour trouver un concessionnaire Kenworth, veuillez consulter Dealer
Locator sur www.Kenworth.com. Au moment de prendre rendez-vous, précisez au concessionnaire que c’est en référence au bulletin E273.
Nous regrettons tout inconvénient causé par ce travail et apprécions votre collaboration en de telles circonstances.
Merci.

Annick Hollingsworth
Directrice des plateformes de service
KenwortheBay logo Truck Company

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TSB/Document ID: E273

Replacement Service Bulletin Number:

MFR Communication Date: 2023-04-06

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: ENGINE AND ENGINE COOLING

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