Hey guys, I just got home tonight, and after parking in the my driveway, i turn off my car and go to the back because I hear a hissing noise, it's seems like it's coming from the back of the car, and it's real weird. It sounds like an air leak, but it's not my tires. Any help is appreciated, thanks guys.

 

your car farted

 

yea this same thing happens to my car when i press the start button and the light is on ''on'' and when i turn it off im not sure if its a problem or thats how it is

lmfaoooo

 

Its coming from the drivers side though on the back only. The passenger side rear is fine.

 

Maybe there is a snake in the trunk.........No, seriously...

Could it be related to the Fuel Return system?????

 

I hear mine from the drivers side but from thr front maybe in the hood im not sure

 

I'm thinking gas cap as well.

 

The hissing is completley gone now, but before it was reallllyyyyy loud and annoying.

 

i still get that noise when i press the start button with out my foot on the brake and its on ''on'' it hisses for like 2sec then its gone

 

ITS THE FUEL PUMP

 

Thats completley normal, my car does that too.

 

Turns out it WAS my tire. I found my tire completely deflated this morining because of a nail. It sounded like it was coming from the exhaust or something. I got my tire fixed for 13 bucks today so everythings fine.

 

shouldnt the tire light have came on in the dashboard to notify you the tire pressure was getting low?

 

I think it may have gone like this:

The leak was obviously very slow, as the tire looked fine as he parked his car, and the psi may still have been above 28. But once he has parked the car with the ignition off, there are no dash displays.

Then, next morning, when the tire pressure had dropped to zero, he saw the flat before entering the car and turning on the ignition. Had he entered the car and turned on the ignition at that point, he would have see a psi warning light.

 

Light, thats exaclty what happened, I got the TPMS warning light before I got to school, but then I went to a gas station and got my psi back up to like 35, then went home, when I got out of my car, I heard the hissing, and was real worried. The next morining, my tire was dead flat.

 

The snake bit your tire