Diesel Exhaust Fluid (DEF) systems are critical for reducing emissions in modern diesel engines, particularly in semi-trucks. Here’s an overview of how these systems work:
Components of a DEF System
A DEF system typically includes the following components:
DEF Tank: Stores the DEF, which is a mixture of 32.5% urea and 67.5% deionized water.
DEF Pump: Moves the fluid from the tank to th
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Applicable VehiclesAll vehicles equipped with a bulkhead module (BHM).SymptomsScenario 1: Technician updates the Features in ServiceLink, then Flashes the BHM, while in "connected Online" mode (see attachment below). This has been confirmed to put the BHM in "Boot Block" (the programming / flashing attempt fails and will not allow you to reattempt).May also be seen as ServiceLink Error
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Applicable Vehicles
M2 106-112 with LED Headlamps
Symptoms
LED Headlamp Failures caused by water / moisture ingress
Issue
Most of the LED Headlamp failures are due to water/moisture ingress. The root cause was identified during inspection and testing of returned failed parts. The connector seal of the Turn - Parking Lamp part of the HARN-LT TRN,OL,CHAS was not installed at the productio
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APPLICABLE VEHICLESAll CascadiaISSUECustomer does not want the brake lights to come on when the engine brake is active.DISCUSSION:Activation of the stop lights when the engine brake is applied is an optional feature. Activation of the stop lights occurs when the engine brake level selection switch is in the HI position and the engine is applying at least 70 percent of its braking power.The S
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Applicable Vehicles:
Cascadia, Columbia, Century Class, Argosy, and 24U
Issue:
"Express Down" feature which was used with electric windows to lowered the drivers window when the down switch is depressed one time has been discontinued, and the Express Down Module located in the drivers door is no longer available.
This affects part numbers:
DTL 16915418
DTL 1691
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Applicable Vehicles
M2 platform vehicles built after January 3, 2024 with a Cummins B6.7 engine certified to GHG24 requirements (Cummins B6.7 CM2450 B155B engines). These engines use an oil pressure sensor, instead of an oil pressure switch.
This solution does not apply to any other Cummins engines.
NOTE: As of March 6, 2024, Cummins has provided a "clean date" for each engine ma
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These tables show how to convert the studs when switching from steel wheels to aluminum wheels.
Table 1 - Front Wheel Stud Crossover
Steel Wheel ApplicationAluminum Wheel Application
Wheel Stud Part NumberLength: InchesWheel Stud Part NumberLength: Inches
BUD/106377
3.17
BUD/106216
3.66
CM/102030
3.97
CM/102290
4.47
CM/103189 (left-hand)
3.08
CM/103191 (left-hand)
3.55
CM/103190 (right
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Detroit Engines, a brand under the umbrella of Daimler Trucks North America, is synonymous with power, reliability, and advanced engineering in the trucking industry. Renowned for their robust performance and cutting-edge technology, Detroit Engines are a preferred choice for many fleet operators and owner-operators looking for efficiency and durability. This article provides a detailed overview o
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Applicable VehiclesThis solution applies to New Cascadia vehicles built with added floor insulation typically found in data code 772-037 : BLACK MATS WITH ADDED FLOOR HEAT ANDNOISE INSULATION WITH ACCELERATOR RUB PAD. This solution could also apply to vehicles that receive aftermarket floor mats that eliminate the clearance between the throttle pedal and the floor. Note: Vehicles r
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The Freightliner Cascadia is one of the most popular and trusted models in the commercial trucking industry, known for its exceptional performance, advanced features, and reliability. Whether you're a fleet operator or an independent owner-operator, deciding between purchasing a new or used Freightliner Cascadia can be a significant decision. Each option has its own set of advantages and considera
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