Hissing noise

[CajunMan]

I have a 08 f250 and was wandering if anyone heard a hissing noise coming from the right side of the truck by the wheel well after turning off the truck? No clue what it is

[bmxrules798]

I would check to see if you have a boost leak maybe on the hot side intercooler pipe if not that it might be a hole in the intercooler it's self like mine, I have a hole and its a pretty loud hiss.

[CajunMan]

Ill check it out thanks. And thank you for your service.

[Capt dong]

Oh boy hissing is usually a boost or exhaust leak. Hopefully it's a boost leak that can be easily fixed. Bad case scenario are the up pipes.

[CajunMan]

Hopefully. It's a very light hiss that I can hear in my front passenger wheel well

[Capt dong]

Check for soot. Not a good sign if it's present around your engine.

[CajunMan]

I revved it and didn't see anything. I recently had the head gaskets replaced. I guess they would have noticed if something was wrong

[Blueboy]

Is there ever any squealing while you are accelerating our anything?

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[CajunMan]

Nothing. Runs like a dream.

[Blueboy]

Ok. Mine has a broken exhaust manifold bolt and some times it squeals. You may have a look at your manifold bolts just to rule it out.

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