2008 Toyota Tundra Humming Noise

The noise is from the secondary air pump which sends hot air to the catalytic converter when the engine is cold.

2008 toyota tundra humming noise. As I increased rpms. Dont ignore it listen to it and use this guide to help troubleshoot the sources of the noises coming from your Tundra. It is a constant noise that gets louder at higher speeds and is nonexistent at very slow speeds ie parking lots.

My 2008 Toyota tundra 57L V8 wont start or turn over Ive replaced starter tried jumping it off still nothing. My truck developed a whirring sound in the drivetrain that grew louder over. It stopped shortly after I got my face under the chassis but my wife said shes heard it a few times before she finally brought it to my attention.

If your Toyota Tundra is making a high pitched noise or hum it could be a sign of a bad wheel bearing. I noticed the voltage meter was - Answered by a verified Toyota Mechanic We use cookies to give you the best possible experience on our website. The noise is low-pitched kind of drone you get with a slightly bad wheel bearing but a little more low pitched than that radio does not cover the noise untill its pretty high volume.

Thats why it is important to know the other warning signs of a bad bearing before just going in and replacing it. If your Tundra is making an abnormal noise its attempting to tell you something isnt right. At highway speed it feels like a constant buzz similar to holding an electric shaver.

The noise appears to be coming from inside the tires. The dealership also stated this was normal but I was persistant and got the service manager involved took him for a ride and he heard it. The 2008 Toyota Tundra has 3 problems reported for noise from drivetrain.

It sounds like the engine is running at a higher RPM like if you. A few months ago I started noticing a humming soundbuzzing sensation at certain speeds. First I thought.