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Strange Noise in Ignition On Mode

Discussion in '2.5 Gen Tundras (2014-2021)' started by YotaForkliftBuilder21, Aug 6, 2023.

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Aug 6, 2023 at 7:16 PM

#1

#1
YotaForkliftBuilder21 [OP] New Member

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Tom

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2021 Cement Tundra Limited TRD OR

None...yet.

Hey guys,

I noticed this noise coming from the engine bay when the truck is in Ignition Mode, engine off. No noise in accessory mode, can't tell if it's there when the engine is running, the noise leaves when I hit the brakes and it returns when I release the brakes. After I completely turn the truck off the noise stops after about 30 seconds. Is this normal? Any idea what it is?

Thanks!

Strange Noise in Ignition Mode https://imgur.com/a/znJXHZC

YotaForkliftBuilder21, Aug 6, 2023

#1

Aug 17, 2023 at 9:58 AM

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D1S7N New Member

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2021 Limited AG

I’ve noticed this before, mine does the same thing if it’s not the same something very very similar but it only lasts around 5 seconds. My uneducated guess was that it was the fuel pump priming itself.

D1S7N, Aug 17, 2023

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