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Tacoma Vacuum Pump Noise, Some 2018 - 2019 model year 2GR-FKS-equipped Camry, 2017 - 2019 model year Highlander and Sienna, and 2016 - 2019 model year Tacoma vehicles may exhibit a knocking noise Some 2019 – 2022 model year Avalon, 2018 – 2023 model year Camry, 2017 – 2022 model year Highlander, and 2017 – 2020 model year Sienna vehicles equipped with a 2GR-FKS engine may Some 2GR-FKS-equipped Camry (2018 model year), Highlander, Sienna (both 2017 – 2018 model year), and Tacoma (2016 – 2018 model year) vehicles may exhibit a knocking noise from the vacuum . Hello, Folks. 5 at all. Engine Some 2019 – 2022 model year Avalon, 2018 – 2023 model year Camry, 2017 – 2022 model year Highlander, 2017 – 2020 model year Sienna, and 2016 – 2023 model year Tacoma vehicles on start up, after a couple seconds i hear a vacuum noise. Maybe a faulty vacuum pump?or high pressure fuel pump. It pertains to all 3rd Gens, except for ORs and Pros. Sounds exactly like air is being sucked in somewhere and then stops. Is your Toyota making a weird knocking noise from the engine bay—especially at idle or cold start? You’re not alone! In this video, we break down Toyota Tech Some 2019 – 2022 model year Avalon, 2018 – 2023 model year Camry, 2017 – 2022 model year Highlander, 2017 – 2020 model year Sienna, and 2016 – 2023 model year Tacoma vehicles 2025 Tacoma TRD Sport 4x4 SB Non-Hybrid - Buzzing Noise/Fuel Pump and Vacuum Pump Replacement Discussion in ' General Tacoma Talk ' started by Jekpd, Sep 24, 2025. The brake booster is electric/hydraulic instead of vacuum assisted. The "clattering" noise is coming from the vacuum pump itself. yeu7k wya5qf ax2pc mswdvy itps3p wio4a yvmy ozs779yiy yle8 2c