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Service bulletin 1604A

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 id621193
Published by NHTSA2001-09-10
Manufacturer's number1604A
Manufacturer's date2001-07-23
NHTSA componentENGINE; EQUIPMENT

NHTSA's summary

THIS BULLETIN EXPLAINS HOW TO PREVENT MOISTURE FROM CLOSING THE OIL PRESSURE SENDER SWITCH AND TURNING ON FLASE LOW OIL LIGHTS ON DASH BY INSTALLING A RUBBER BOOT TO COVER THE OIL PRESSURE SENDER. *TT

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, Equipment and accessories

Vehicles listed
NEW FLYER NEW FLYER

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