High-Pitched “Chirp”, “Squeak” or “Cricket” Sound from the Engine – 2013-2014 Subaru BRZ

NUMBER: 09-54-12R
DATE: 10/03/12
REVISED: 09/27/16

04/15/14

APPLICABILITY: 2013-16MY BRZ
SUBJECT: High-Pitched “Chirp”, “Squeak” or “Cricket” Sound from the Engine

 

INTRODUCTION

This bulletin provides a procedure to address customer concerns of a high-pitched “chirp”, “squeak” or “cricket” sound heard coming from the engine’s Direct Injection (DI) high-pressure fuel pumpNot all DI pumps may exhibit this sound.  Some vehicles may have components which in combination with certain fuel temperatures and / or formulations, may result in aeration of the fuel within the body of the pump and cause this sound.  This result is non-detrimental to the vehicle.  Production changes have been made to eliminate the source of the sound.

IMPORTANT:   A “clack” or mechanical “ticking” sound also made by operation of the highpressure fuel pump is considered to be a normal operating characteristic and no attempt should be made to repair it.

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