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Truck Makes Psst Noise after Startup

Discussion in '2nd Gen Tundras (2007-2013)' started by JBSTOY, Jan 10, 2019.

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Jan 10, 2019 at 2:44 PM

#1

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JBSTOY [OP] Was tired, so I woke up.

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2008 Toyota Tundra SR5 4x4 5.7litres of goodness

Bilstein 6112s Front Bilstein Rear Fuel Rims

I have a 2008 5.7L Tundra. The other day I started the truck and a few seconds later it made a sound like a psst. It sounded like someone let air out of the tire. It was a sharp loud sound that did not last very long. Any guesses? Should I be worried? Thanks

JBSTOY, Jan 10, 2019

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Jan 10, 2019 at 5:13 PM

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FXFormat New Member

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Air injection pump, it's normal, it reduces emissions on cold startups

FXFormat, Jan 10, 2019

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Prostar 190, JBSTOY[OP], landphil and 1 other person like this.

Jan 10, 2019 at 7:49 PM

#3

#3
JBSTOY [OP] Was tired, so I woke up.

Joined:

Dec 26, 2016

Member:

#5697

Messages:

276

Gender:

Male

First Name:

Jack

Unknown Origen

Vehicle:

2008 Toyota Tundra SR5 4x4 5.7litres of goodness

Bilstein 6112s Front Bilstein Rear Fuel Rims

FXFormat said: ↑

Air injection pump, it's normal, it reduces emissions on cold startups
Click to expand...

Thank you.

JBSTOY, Jan 10, 2019

#3

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