Daimler Trucks North America LLC is recalling certain 2017-2019 Freightliner Cascadia

Aug 30, 2018 — Recall Campaign #18V581000

Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2019 Freightliner Cascadia, Coronado and 122SD, and Western Star 4900 trucks, equipped with Cummins ISX15 or X15 diesel engines. In certain driving conditions, such as on a long down-hill grade, the fuel line may burst if the fuel pump cooling circuit screen becomes restricted.

The recall was influenced by the manufacturer with about 4,500 units affected.

See recall notice

NHTSA Safety Recall Notice

18V581000

Manufacturer:	Daimler Trucks North America, LLC
Recall date:	August 30, 2018
NHTSA Campaign #:	18V581000
Units affected:	4,500

Description:: Daimler Trucks North America LLC (DTNA) is recalling certain 2017-2019 Freightliner Cascadia, Coronado and 122SD, and Western Star 4900 trucks, equipped with Cummins ISX15 or X15 diesel engines. In certain driving conditions, such as on a long down-hill grade, the fuel line may burst if the fuel pump cooling circuit screen becomes restricted.
Consequeces:: If the fuel line bursts, fuel may leak onto the road resulting in a roadway hazard for other motorists. The engine may also stall without warning, resulting in the vehicle's inability to restart, increasing the risk of a crash.
Corrective action:: Dealers will replace the affected nylon fuel line with a steel fuel line, free of charge. The recall began November 21, 2018. Owners may contact DTNA customer service at 1-800-547-0712 or Cummins customer service at 1-800-286-6467. DTNA's number for this recall is FL789.
Notes:: Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Affects the following:

2019 FREIGHTLINER CASCADIA Complaints
I am writing to bring to your attention a potentially dangerous situation caused by what I believe to be a manufacturer design flaw with the SS 1034797 M2, 108SD, 114SD Coolant Level Sensor P/N 06-93316-002. On [XXX], one of our trucks (VIN: [XXX]) experienced a low coolant warning and an automatic engine shutdown while traveling on the interstate in a construction zone. As you can imagine, the sudden stoppage of a tractor-trailer in the traffic lanes of a freeway presents an extremely hazardous situation, not only for our driver but for all motorists in the vicinity. For us as a motor carrier, this is compounded by the likelihood of legal liability resulting from any collision involving a stationary truck in such conditions. The root cause of this incident appears to be the failure of the magnet within the surge tank to maintain its buoyancy. When the magnet sinks to the bottom of the tank, it signals the engine control module (ECM) that the coolant level is critically low, triggering an engine shutdown. While I understand the intent is to protect the engine from potential damage, this design flaw creates an unacceptably dangerous scenario—especially since, in many cases, the engine is not actually at risk of damage. In this instance, I instructed the driver to unplug and after a 15-minute period, he restarted the truck and drove to a nearby truck stop. Remarkably, the truck remains operational without the sensor repair, further underscoring the superficial nature of this issue. Unfortunately, this is not an isolated incident. We have encountered similar sensor failures across our fleet, but this particular event was the most severe. While I am not an engineer, it seems logical that the coolant level sensor should be paired with a high-temperature reading before an engine shutdown is initiated. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6);
2019 WESTERN STAR 4900 Complaints
TL* THE CONTACT OWNS A 2019 WESTERN STAR 4900SB. WHILE THE VEHICLE WAS STOPPED ON AN INCLINE AND ATTEMPTING TO SET THE PARKING/EMERGENCY BRAKE, THE DRIVER HAD TO REMOVE HIS FOOT FROM THE BRAKE PEDAL. AS A RESULT, THE VEHICLE ROLLED BACKWARDS. THE CONTACT INDICATED THAT THE ONLY WAY TO ACTIVATE THE PARKING/EMERGENCY BRAKE WAS TO REMOVE HIS FOOT FROM THE BRAKE PEDAL. THE VEHICLE WAS TAKEN TO FREIGHTLINER NORTHWEST (13232 CASE RD SW, OYMPIA, WA), BUT THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND DID NOT ASSIST. THE FAILURE MILEAGE WAS 600.;