WenmarOpen by Wenmar Pro

Service bulletin SIB-SPN-4077

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 id10056592
Published by NHTSA2015-01-10
Manufacturer's numberSIB-SPN-4077
Manufacturer's date2014-07-01
NHTSA componentFUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS; ENGINE AND ENGINE COOLING:ENGINE:DIESEL

NHTSA's summary

DETROIT: WHEN THE HYDROCARBON (HC) DOSER FUEL LINE PRESSURE (FLP) SENSOR CIRCUIT FAILS HIGH, THE MOTOR CONTROL MODULE (MCM) DETECTS IT, A FAULT CODE WILL SET. *PE

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Engine, Fuel system, Fuel hoses and lines

Vehicles listed
DETROIT DETROIT

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