So some of you may remember this post https://www.f150online.com/forums/20...uck-video.html with the ticking type of sound.

Well today I took my truck to a reputable shop here locally to get it looked at finally. He hooked it up to a smoke machine and tested the exhaust for leaks. What he found was that on my mufflers (some kind of hackjob from the owner before me) has gone bad and that the horrible installation of my hfcs has bad welds. However, the odd part is that he said and I watched that the exhaust manifold is fine. This is great news but do you guys think that the aforementioned exhaust issues could be making the sound in that video linked above?

 

anyone?

 

It's been 30 minutes . . .

If my work iPad had speakers I'd take a listen. I will when I get home.

 

Sorry Ive left now....I was just anxious because I was about to pull the trigger on some exhaust work but decided to wait...

 

Ahh that explains it. If your only leak is near/in the muffler, if would mostly sound louder, but not "bad." If the internals on the muffler are destroyed, it can sound pretty gnarly though. Manifolds leaks sound like crap. Search DarrenWS6's threads for how his manifold leak sounds.

 

i have leaks in the front and rear weld of both cats and the mufflers not the welds but the mufflers themselves

 

Mmm yeah, that many leaks probably doesn't sound real great. How are your manifolds, rust wise? Sounds like replacing the whole exhaust from the manifolds back might be in order . . can't imagine the rest of the pipe is in very good shape.

 

from what i could see they were rusted but not overly so.

 

Ok the first video was a couple of months ago


This video was from tonite sorry for the distortion but its basically the same sound however stick around till the end of the video and what the hell is that air releasing sound?

 

I took the shroud off and i didnt see one bolt broken i couldnt see part of the manifold because it was blocked but could it be cracked???

 

No professional by any means, but definitely sounds like potential exhaust leak to me. These manifolds do have a tendency to warp (and/or crack), so maybe. Didn't you say the guy tested for leaks and they checked out okay?

Second video says "private."

 

yeah he did a smoke test. it came out obviously around the muffler and the welds on the cat which i figured but nothing around the manifold

 

im seafoaming it now to see

 

Now im completely confused....the sound is still there but the seafoam had no smoke coming out from any where near the exhaust manifold. I guess its not that. I wonder if a engine mount or something could be doing it.

 

Well the cats are right behind the engine, so it could just be those. I'd get the known holes fixed, then sorry about other stuff if the problem's still there.