Hissing Noise Behind Rear Driver Side Tire

If you are in PA...they had a truck load of monkeys crash and escape. One hissed at a lady and apparently is now sick.

https://www.pennlive.com/crime/2022...-theories-after-woman-at-scene-falls-ill.html

Good luck with the monkey OP.

 

Update ... Started my truck, 2018 v6 on a cold morning and it finally threw a code P0455 and P0441. It also smelled very strongly of gas. Both EVAP related, took it back to the dealer and they decided it was the fuel pump this time even though they had replaced it 6 months ago due to the recall.

With the new fuel pump in, at the dealer the sound was faint or hardly loud enough to hear at idle. Drove it home 2~3 miles on the freeway home. The sound is as loud as ever while driving, roll the back window to the side and a loud audible hiss. Upon parking at idle it sounds loud still but no smell of gas yet.

I spoke with the Tech who is still suggesting an issue with the differential as I mentioned, it doesn't make a lot of sense with the smell and the sound while not moving. This baffled him and he had no answer.