# Service bulletin TechTalk8161

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: 10188012
- Published by NHTSA: 2021\-03\-03
- Manufacturer's number: TechTalk8161
- Manufacturer's date: 2021\-02\-19
- NHTSA component: FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING

## NHTSA's summary

Tech Talk discussion on DD15 HARD TO START UNLESS PLUGGED IN.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10188012-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10188012-9999.pdf)

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

## Components

Engine, Fuel system

## Vehicles listed

- 2011 WESTERN STAR 4900

## Recalls for the same vehicles and component

- [12V074000](/recalls/nhtsa/12V074000.md), 2012-02-28: ENGINE AND ENGINE COOLING:ENGINE:DIESEL
- [2012080](/recalls/tc/2012080.md), 2012-02-27: Fuel System
- [11V605000](/recalls/nhtsa/11V605000.md), 2011-12-27: ENGINE AND ENGINE COOLING:ENGINE:DIESEL
- [2011439](/recalls/tc/2011439.md), 2011-12-22: Engine
- [11V287000](/recalls/nhtsa/11V287000.md), 2011-05-18: FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP
- [11V146000](/recalls/nhtsa/11V146000.md), 2011-03-03: ENGINE AND ENGINE COOLING
- [10V341000](/recalls/nhtsa/10V341000.md), 2010-07-27: ENGINE AND ENGINE COOLING
- [10V339000](/recalls/nhtsa/10V339000.md), 2010-07-27: FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP
- [2010250](/recalls/tc/2010250.md), 2010-07-26: Fuel System
- [2010144](/recalls/tc/2010144.md), 2010-05-03: 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...
- [WI21\-009](/bulletins/10190551.md), 2021-04-24, Service bulletin: ENGINE AND ENGINE COOLING. Warranty Information letter announcing that DTNA is increasing the Standard Diagnostic Times \(SDTs\) shown. The updated after treatment system \(ATS\) diesel exhaust fluid \(DEF\) pump times will be applied to repair orders opened on or after April 12, 2021.
- [18SP745](/bulletins/10183955.md), 2020-12-08, Service bulletin: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:FUEL RAIL; EQUIPMENT ADAPTIVE/MOBILITY; ENGINE AND ENGINE COOLING. Special Publication Letter for EPA07 EPA10 Three\-Filter Fuel System DD15 DD16 Severe Duty High Pressure Fuel Rail Feed Lines Service Kit
- [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.
- [20TS\-09](/bulletins/10183733.md), 2020-12-07, Service bulletin: ENGINE AND ENGINE COOLING. Technical Service Letter for SPN 3711 FMI 31 on GHG17 DD15 Trucks.
- [TechTalk7679](/bulletins/10180382.md), 2020-10-01, Service bulletin: ENGINE AND ENGINE COOLING. Tech Talk discussion on repair verification for codes like 'low air flow' when a trailer is not available.
- [20CSA\-15](/bulletins/10179249.md), 2020-09-02, Service bulletin: ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EQUIPMENT. Customer Service Announcement for Release of DiagnosticLink 8.12 Service Pack 2. On Thursday, September 3, 2020, Service Pack \(SP\) 2 for DiagnosticLink 8.12 Standard and Professional will be made available to download from the Detroit Diesel server.
- [20TS\-05](/bulletins/10177692.md), 2020-07-31, Service bulletin: ENGINE AND ENGINE COOLING. Technical Service Letter for EPA10, GHG14, GHG17 Diesel Particulate Filter \(DPF\) Compatibility. Note: This document supersedes 14 TS\-25 and 15 TS\-8. Detroit Diesel has determined that some, Diesel Particulate Filters \(DPFs\) are compatible in pairs and or can be mixed together within EPA10 and GHG14 Systems. For 1\-BOX and Two\-Box Configuration Aftertreatment Systems \(ATS\), this is only possible when the filters are used in accordance with Tables 1 and 2 shown below. All other DPFs, NOT mentioned below, are NOT compatible.
- [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.
- [WI20\-004](/bulletins/10173907.md), 2020-04-23, Service bulletin: EQUIPMENT; ENGINE AND ENGINE COOLING. Warranty Information Letter for Warranty Long Block Program Change. The Detroit Reman Long Block Program has expanded. The expansion reduces complexity in ordering reman engines and promotes stocking reman engines to meet uptime commitments.

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