06 Toyota Tundra Making Vacum Noise

I bought the vehicle last Wednesday drove it 200 miles to the coast the following day. This allows the catalytic converter to clean exhaust better and lower. The noise is from the secondary air pump which sends hot air to the catalytic converter when the engine is cold.

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I will post up a new pic soon just wanted to get this out there.

06 toyota tundra making vacum noise. Ok this is gonna be hard to explain but basically at about 3500 rpms and on my engine makes a slight whistling noise i guess is how i can explain it. There is a load noise coming from the back side of the motor that sounds like a Vacuum cleaner motor electric motor. It has a bumper to bumper warranty for the next 67000 miles so I will let you know what the dealer.

Maybe a Subaru works different Found this Re. The loud vacuum sound is not the same as typical fan the aux or radiator fan Im not sure which it is that kicks on everytime I start the car. New member here.

It almost seems like its getting worse too it is starting to do it at idle. Hello I have a 2005 Toyota Sequoia that has been making a real loud vacuum sound at the first start only. A bit of background on the noise.

Only does this when I turn left. This sound is a lot louder and sounds more like a vacuum. Our 2012 Tacoma has done it and the 2013 Rav4 has.

06 Tundra X-SP 01 Tacoma Double-Cab In Memory of 91 Tacoma 22r-e 327799miles sosad. I happens when I astart the vehicle. I have an 06 Reg Cab V6 40L.

Drivers may hear a loud noise much like a vacuum cleaner coming from their engine on cold starts. Discussion Starter 1 Nov 9 2017. Joined Nov 28 2009.