Subaru BRZ 2013 — technical service bulletin
Bulletin 09-54-12 · NHTSA communication 10085225 · issued Mar 26, 2013
Technical service bulletin
communication type
Fuel System, Other
component
2013
model years
1
vehicle entries
Official summary
"reminder: the purpose of this bulletin is to provide information regarding a high-pitched chirp , squeak or cricket sound you may hear coming from the engine s high-pressure fuel pump. Not all pumps may exhibit this sound. It is a result of the positioning of the plunger stopper inside the high pressure pump. Some may have a plunger stopper position that when combined with certain fuel temperatures or fuel formulations, may result in aeration of the fuel within the body of the pump causing this sound when the engine is idling. This result is non-detrimental to the fuel system or engine. Not a
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.