# Service bulletin FL721

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10140652
- Published by NHTSA: 2018\-06\-11
- Manufacturer's number: FL721
- Manufacturer's date: 2017\-04\-12
- NHTSA component: FUEL SYSTEM, GASOLINE

## NHTSA's summary

CNG Fuel Tank and CPDM Mounting Location

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10140652-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10140652-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Fuel system

## Vehicles listed

- 2013 to 2016 FREIGHTLINER CASCADIA

## Recalls for the same vehicles and component

- [2016441](/recalls/tc/2016441.md), 2016-09-09: Fuel System
- [15V105000](/recalls/nhtsa/15V105000.md), 2015-02-23: FUEL SYSTEM, OTHER:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
- [14V680000](/recalls/nhtsa/14V680000.md), 2014-10-29: FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE
- [2012080](/recalls/tc/2012080.md), 2012-02-27: Fuel System

## Other bulletins for the same vehicles and component

- [SS1033094](/bulletins/10195575.md), 2021-06-09, Service bulletin: FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:MANIFOLD PRESSURE \(MAP\) SENSOR. Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...
- [FAB153](/bulletins/10193705.md), 2021-05-18, Service bulletin: ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; FUEL SYSTEM, GASOLINE. Freightliner Action Bulletin FAB153 New Harness Highway for Cascadia
- [FTLCAE139\-2013](/bulletins/10193108.md), 2021-05-12, Service bulletin: EQUIPMENT; FUEL SYSTEM, GASOLINE; SEAT BELTS; POWER TRAIN. INTERIOR STORAGE \- Side Storage Bins Removed from Certain Cascadia Sleepers. SEAT BELTS \- Height Adjustment Removed from Cascadia Passenger Side Seat Belt. FUEL TANKS \- Fuel Tank Changes for 25" and 23" Tanks for Model Year 2015. TRANSMISSION \- Correction to Allison 5th Gen Module 84L Definition Example. ADMINISTRATION \- Model Year 2015 Changeover Date Established. APPENDIX A \- 25" and 23" Diameter Cylindrical Fuel Tank Changes. APPENDIX B \- Revised Allison 5th Gen New Modules and Definitions
- [TechTalk566541K](/bulletins/10191854.md), 2021-05-07, Service bulletin: FUEL SYSTEM, DIESEL. Tech Talk discussion on Needing regen in same area every time.
- [TechTalk566596K](/bulletins/10191828.md), 2021-05-07, Service bulletin: FUEL SYSTEM, DIESEL; ENGINE AND ENGINE COOLING. Tech Talk discussion on DD15 injector cups.
- [18SP744](/bulletins/10183954.md), 2020-12-08, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL. Special Publication letter for Two\-Filter Fuel System KM59 GEN1 DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines Service Kit.
- [TechTalk7733](/bulletins/10181972.md), 2020-11-03, Service bulletin: ENGINE AND ENGINE COOLING; FUEL SYSTEM, GASOLINE. Tech Talk discussion on Engine dies, shuts off, no CEL no faults, due to clogged vent.
- [TS1033014](/bulletins/10177608.md), 2020-07-31, Service bulletin: EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP; ENGINE AND ENGINE COOLING. Training Solutions for Fuel Leak Found at High Pressure Fuel Pump Weep Hole for Heavy Duty DD Engines. Occasionally we see trucks come in with fuel leaking from the high pressure fuel pump weep hole. This is NOT a defect in the pump and further diagnostics need to be performed to find the root cause.
- [SB47\-027](/bulletins/10165416.md), 2019-09-28, Service bulletin: FUEL SYSTEM, GASOLINE. Service Bulletin for Equiflo Fuel System Breather Tube Inspection
- [19TS\-8](/bulletins/10164555.md), 2019-09-09, Service bulletin: FUEL SYSTEM, GASOLINE; ELECTRICAL SYSTEM; EQUIPMENT. Technical Service Letter for Incorrect ICUC Fuel Economy Reading for New Cascadia units built or updated to CPC3Evo software version R31.23 and equipped with a 3rd party telematics device.

JSON: [/v1/bulletins/10140652](/v1/bulletins/10140652)

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