NUMBER: 09-54-12R DATE: 10/03/12 REVISED: 09/27/16 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 pump.  Not all DI pumps may exhibit this ... Read more

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