My car sounds like a vacuum! Not a good thing you can hear it inside and outside from 10 feet away easily. I also have gotten a check engine light. I am not sure if the sound is from the engine or the exhaust or what ever else, please help me! What should I do?
Thank you!

 

put up the codes first. if you heard my car, i don't think you would complain about noise lol. it's probably your secondary air pump no turning off. otherwise the only other noise you should be hearing is the engine. put up a sound clip

 

Sounds like your SAP line isn't hooked up to your airbox, look at the front of your airbox (towards the radiator) and make sure all the lines are plugged into the box, there is a small line that connects close to the top of the box which is the SAP line. More than likely the fault is a secondary air flow something something rather.

 

Thanks and I'm going to go to auto zone today and get the codes... also the sound doesn't always happen its usually when I first start the car and it is cold.

 

that def means its your sap just check the connections there the one on the air box and the one under the bumper the runs to the front of the motor

 

same thing happend to me. its the sap. mine happend to be an easy fix. it was just a hose that came off the pump. put it back on and the wicked vaccum noise was gone

 

I also got a check engine light when this sound started to happen. I got my car scanned today.
Codes:
P0432
P0411
P0422

 

either your pump is bad or it's really dirty because it's not connected to the airbox. the 432 is triggering the other 2 codes. check the hose like auditech said, if that's not your problem, you need a new pump. they're like 20 bux used from a junkyard so get a couple of them. the swap is kind of annoying because you have to take the bumper off and possibly the radiator support, depending on how skilled you are with your hand. (i know some of you smartasses will have a comment for that statement) then undo the harness, hose, 6 little bolts and wiggle the pump out

 

I looked under the bumper and there was a loose hose, i taped it up so it wont fall open again... do you think that will fix the problem? and if so how long till te codes will be eliminated?

 

was it a plastic hose big enough so that you could stick your thumb into? if so that's the right one. and if so, your problem should be gone. go clear your codes