TSB Document:

Affected Component: ENGINE (PWS)

Summary
TSB: Some 2016 ? 2017 model year Tacoma, 2017 model year Sienna and Highlander, and 2018 model year Camry vehicles equipped with a 2GR-FKS engine may exhibit a knocking noise from the vacuum pump. Follow the Repair Procedure below to address this condition.

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Date Published
NOV 20, 2017
NHTSA TSB #
10133645
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