That’s still not terrible but a could find better. With the way the market is I’m happy I paid 36 for mine about a month ago. Fully loaded with every option available 19 ST.
So I don’t think it’s the fake engine noises being pipped into the cabin that’s making this hissing noise under acceleration. Another weird thing is that it doesn’t do it when I rev it up while parked only while driving. Drove an 18 sport and a 19 f150 with 2.7 in it and couldn’t replicate the hissing noise.
I’ll start by saying I previously own an escape with 2.0 engine so I’m new to the 2.7 gain. Pick up my 2019 st a month ago. Under moderate acceleration (probably pressing it down around 30-40%) I start to hear this hissing noise. I peak around 17ish boost (sometimes when on it hard it surges up to 20 then back down to 17ish) I’ve checked the pipes I can see for leak but didn’t find anything. Is this normal for 2.7? Was going to take to dealer but thought I would ask here first. Also will add do not hear same noise when giving it gas while parked. Thanks in advance