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2022 RX350 Engine “Tocking” sound

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Old Jan 13, 2025 | 10:15 AM
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Default 2022 RX350 Engine “Tocking” sound

Hi everyone,

Started noticing this “tocking” sound while at idle/crawling speeds. Just had this engine resealed due to a coolant leak a few weeks ago, which could be possibly related. Does your RX350 (2016-2022) sound like this?


Last edited by OReliable; Jan 13, 2025 at 10:17 AM.
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Old Jan 13, 2025 | 01:47 PM
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Originally Posted by OReliable
Just had this engine resealed due to a coolant leak a few weeks ago,
Can you elaborate on this? What was sealed and was this done at a dealer?
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Old Jan 13, 2025 | 03:43 PM
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Originally Posted by LeX2K
Can you elaborate on this? What was sealed and was this done at a dealer?
Timing cover reseal. They said it’s usually oil that leaks not the coolant side. When they took it apart it was because there was not a sufficient amount of sealant around the cover. It was done at the dealer under warranty.
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Old Jan 13, 2025 | 03:57 PM
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Take it back there to get it scanned.
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Old Jan 13, 2025 | 04:26 PM
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Which dealer in NJ?

This definitely is abnormal. Even the high pressure pump does not sound like this. Best to bring it back.
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Old Jan 15, 2025 | 06:07 PM
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Sounds like the vacuum pump going bad.
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