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Service bulletin T1489B

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 id10088433
Published by NHTSA2017-01-12
Manufacturer's numberT1489B
Manufacturer's date2015-02-13
NHTSA componentFUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS

NHTSA's summary

THIS TEMPORARY REPAIR PRACTICE ADDRESSES FUEL LEAKS ON #2 AND #4 INJECTOR FUEL SUPPLY LINES ON CERTAIN ENGINES. IF A FUEL LEAK DEVELOPS ON EITHER THE #2 OR #4 INJECTOR LINES, THEN BOTH THE #2 AND #4 FUEL LINES AS WELL AS THE PUMP TO RAIL FUEL LINE MUST BE REPLACED. THIS IS A REVISION TO A PREVIOUS COMMUNICATION.

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

Fuel system, Fuel injection

Vehicles listed
CUMMINS ISL9

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