WTF is this sound from rear end? Truck is off...

So I went into the garage to take out the garbage and heard this noise which I thought was coming from my old fridge.

However, I turned off the fridge and realized the sound was coming from the rear end of the truck The truck's been sitting parked since about 5:30. It's now 11:30.

I don't know how long it was on before I noticed it, but I was on for at least 5min until it shut off by itself (video #2).

http://youtu.be/6tk9i4cfMoY

http://youtu.be/FGg98VXY7gk

You'll probably need to turn up the sound.

It sounds like a motor or fan of some sort?? Emissions related??

I did do a quick search but didn't see anything....

Cheers,

Jay

 

Holy shit I remember hearing the same sound on mine too but forgot to ask about it. My truck was also off lol

 

It's doing an emissions evap system check IIRC
It's normal.

 

inverter???

 

its part of the emissions system! no need to worry it is on all 2012+ Tacomas

 

Normal as stated above, Emissions Evap Systems Check.

 

Fixed that for you

 

Crazy, I literally just posted the same thing yesterday or the day before... But I thought it was my water heater in the garage and ended determining it was the truck after crawling around

 

its totaled

 

I just had this happen to me the other morning. I too walked into the garage at 5:00 in the morning and heard this. I cycled the ignition on and off and that stopped it. I was very worried and posted in a thread about this "pump" noise. This seems to be a common occurance. I don't know how long mine was doing this also.
I think the dealer should warn Tacoma owners about this so we don't freak out.

 

Hmm. Never heard mine do that. Sound like the fuel pump priming to me.

 

That's what I thought it was, some type of pump.

 

Mine does it too. 2013

 

Taco tick, taco lean, taco pump noise, what else?

 

x2

It is some sort of fuel system depressurizing thing. Nothing to worry about. Have three toyotas that all do it within 5-8 hours of shutoff. Its normal. Its supposed to do it.

 

Open your fuel cap and the noise will go away. Normal.

 

If you cycle the ignition or open the fuel cap, it can't do its job....just saying

 

Our 2012 Highlander does the same thing it sounds like a small compressor running sometime for a few minutes. It had me crawling underneath at first since the dealer had said they never heard of such a thing. As usual

 

Haha, yeah, my first thought was to post here because I didn't want to deal with the incompetent ass clowns at the dealership.

 

I hear you on that one. I love every time i know more about my toyota than they do.