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High Idle sound during Start Up but no change in RPM

Discussion in 'General Tundra Discussion' started by Maverick61, Oct 26, 2019.

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Oct 26, 2019 at 1:25 PM

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Maverick61 [OP] New Member

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Have a 2009 Tundra V6, notice at start up , engine has a noise like it idles high but after less than a minute normal engine sound. No change in RPM during idle with or without sound. Been doing this since I bought vehicle, 7 years ago.

Just curious if anyone had a explanation.

Maverick61, Oct 26, 2019

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Oct 26, 2019 at 1:28 PM

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T-Rex266 Owner, CTO and executive chairman of X Staff Member

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Perfectly normal

T-Rex266, Oct 26, 2019

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15whtrd likes this.

Oct 26, 2019 at 1:31 PM

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Maverick61 [OP] New Member

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Should I wait till engine resumes normal sound before putting into gear?

Maverick61, Oct 26, 2019

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Oct 26, 2019 at 1:39 PM

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T-Rex266 Owner, CTO and executive chairman of X Staff Member

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I do.

T-Rex266, Oct 26, 2019

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Oct 26, 2019 at 1:59 PM

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7.62Tundra Chromeaphilliac

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Mine does it. I think it's partly the fan clutch mechanism adjusting itself and the fan slowing down after a bit.

7.62Tundra, Oct 26, 2019

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15whtrd, Ericsopa and Hbjeff like this.

Oct 26, 2019 at 3:26 PM

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15whtrd Mr. Blonde

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White 2015 Tundra DC SR5 TRD 4x4 5.7L, White 2003 Sequoia 2WD

TRD Pro suspension, +2 Coachbuilder shackles, 2015 TRD Pro headlights, 20% ceramic tinted windows, clear ceramic tinted front windshield, aFe drop in pro s dry air filter, TRD airflow accelerator, TRD oil fill cap, TRD 18 psi radiator cap, BDX Bullydog tuner, Weathertech floor mats front and rear, rear seat fold down mod, DNA hard trifold tonneau cover, Linex with uv protection, TRD rear swaybar, TRD center caps, TRD Pro grille insert with color matching surround and bulge, TRD PRO headlights, aluminum oil filter canister, Real truck tailgate seal, Pop-n-lock tailgate lock actuator, rear diff breather relocate, RCI front skid plate. 275/70 R18 BFG KO2s

Agreed. Normal. Fan clutch is engaged during start up, and after some time it disengages and becomes quiet. Very typical of a mechanical clutch fan.

15whtrd, Oct 26, 2019

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