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Service bulletin 8-20-13

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 id10053356
Published by NHTSA2013-10-22
Manufacturer's number8-20-13
Manufacturer's date2013-08-01
NHTSA componentENGINE

NHTSA's summary

DETROIT: INFORMATION CONCERNING THE INSTALLATION OF THE NEEDLE, AMPLIFIER, AND PRESSURE LIMITING VALVE RETURN LINES. *JS

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

Vehicles listed
DETROIT DETROIT

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