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Service bulletin TechTalk7318

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10181947
Published by NHTSA2020-11-02
Manufacturer's numberTechTalk7318
Manufacturer's date2020-10-08
NHTSA componentFUEL SYSTEM, GASOLINE

NHTSA's summary

Tech Talk discussion on Fault Code 96/13 Fuel Tank Level Sensor stuck in position.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Fuel system

Vehicles listed
WESTERN STAR 49002020

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
PB-47-900-WST2026-07-06. Service bulletin. Parts Bulletin for Fluorosilicone Fuel Tank Cap Seals
SS10330942021-06-09. Service bulletin. Service Solution SS 1033094 KUS Float Tube Fuel Level Sensor Inform...
WSTCAE171-20192021-05-18. Service bulletin. Allison FuelSense 2.0
18SP7442020-12-08. Service bulletin. Special Publication letter for Two-Filter Fuel System KM59 GEN1 DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines Service Kit.
TS10330142020-07-31. Service bulletin. 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.
SB47-0152019-09-28. Service bulletin. Service Bulletin for Equiflo Fuel System Breather Tube Inspection