General InformationDetroit Diesel DD15 engines are equipped with two serpentine, poly-V drive belts and two automatic belt tensioners. The rear belt (closest to the engine block surface) drives the alternator, the A/C compressor, and the water pump. The other, front belt drives the engine fan. Both drive belts are kept at the correct tension by a system of pulleys and a dual automatic belt tension
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General InformationOn some AMU (Air Management Unit) pressure protection valves manufactured by Norgren, the internal O-ring may jump out of its groove, allowing the air to blow by the O-ring. This results in an air leak, with virtually no air flow from the secondary air supply to the AMU modules downstream of the pressure protection valves (air flow reduced by 99 percent).
When this condition ex
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Applicable Vehicles
Freightliner M2+ and SD+ with SAE J560 7-way trailer cable
Issue
The SAE J560 7-way trailer cable provides a left turn lamp circuit and a right turn lamp circuit. If not otherwise specified at time of truck order, the default functionality of these circuits is turn signal only. This provides maximum compatibility with air-braked trailers.
In some applications
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Applicable Vehicles
Cascadia, New Cascadia, M2, Coronado, Western Star and possibly others depending on customer order preferences.
Symptoms
Fuel gauge reading inaccurate.
Fuel gauge reading empty all the time.
Fault codes for fuel level sensor.
Issue
The SSI Ultrasonic Fuel Level Sensor sends high frequency pulses then measures the echo in order to determine the fuel level in the tank
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Applicable Vehicles:
This solution applies to all New Cascadia Vehicles.
Issue:
The Customer Assistance Center (CAC) has received several requests pertaining to Daytime Running Lights (DRL) operation. In most cases, the request is to add low speed DRL interrupt. Currently (4/16/2019), Canada-domiciled vehicles require continuous DRL and regulation prohibits DRL interruption at any speed. For U.
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Applicable Vehicles:
This solution applies to all New Cascadia Vehicles with LED headlights.
Issue:
Several requests have been submitted to the Customer Assistance Center (CAC) pertaining to Accent / Park light function change. The white colored Accent / Park light, located just above the headlights is illuminated any time the ignition switch is on. Currently (4/11/2019) there is no progra
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Applicable Vehicles
This document applies to Freightliner M2 Business Class used in a “Fire/Emergency” application and equipped with FTL flat leaf spring rear suspensions.
Symptoms
Driver of the vehicle will detect an audible popping or knocking noise from the rear suspension when turning the vehicle.
Issue
The FTL flat leaf spring rear suspension permits the spring pack to shift
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Applicable Vehicles:This document applies to 2010 thru 2020 model year Freightliner and Western Star chassis used in a "Truck" application and equipped with an Airliner rear suspension.
PROBLEM / SYMPTOMS:
In a "Truck" application there are a number of problems that can result in a chassis lean at the Airliner rear suspension:• Unequal tire pressure side to side.• Rear
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Applicable Vehicles
All New Cascadia equipped with a Cab Load Disconnect Switch (CLDS).
Symptoms
In very cold weather, if a truck has been parked outside with the CLDS turned off, the Battery Cable Access (BCA) module might not provide power to the vehicle when the CLDS is turned on.
The situation is more pronounced in extreme cold temperatures experienced in the northern United States an
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Applicable Vehicles
P4 New Cascadia vehicles specified with Detroit-Racor Fuel Water Separator and Adaptive Power Steering built since 10/8/2021.
Symptoms
Access to FWS Bowl to replace Filter is reduced due to location of a APS Wiring Bracket.
Issue
New Cascadia vehicles specified with Detroit – Racor Fuel Water Separators and Adaptive Power Steering (APS) may have reduced access to ser
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