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Can Someone Help Diagnose This Knocking Sound?

Discussion in 'General Tundra Discussion' started by Jon1993, Jul 22, 2023.

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Jul 22, 2023 at 5:08 PM

#1

#1
Jon1993 [OP] New Member

Joined:

Jul 22, 2023

Member:

#100737

Messages:

1

Gender:

Male

Vehicle:

2011 Blue 4.6 V8 Tundra

New headlamps, Hewitt 2nd Gen SAIS Bypass Kit

Hey Everyone,

I have a 2011 4.6 V8 Tundra. I had received the code P0412, and after reading about the code and eventually hearing a cat like whining sound when I started the truck and running at low speeds, I decided to put on a Hewitt 2nd Gen SAIS Bypass Kit. I finished the install today, and the check engine lights are off and the truck is running more powerfully. However, I still am hearing a knocking/whining sound while idling. Can anyone tell me what they think this may be?
Thanks!

Last edited: Jul 22, 2023

Jon1993, Jul 22, 2023

#1

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