dljorgy

Whenever I floor it I hear a loud ticking rattle kind of sound coming from around my feet. Ive tightened the headers and downpipes but still hear it. Also my driver side downpipe was a little black around the flange. Does this sound like an exhaust leak? It only does it at WOT. If I drive normal(without flooring it) it sounds fine.

lx5.0

if you have black around the flange then yes you still might have a leak my car use to have a leak where header met with mid pipe and it sounded like if one of my lifters was bad a lot of ticking but mine would do it all the time maybe your leak only opens at wot cause engine moves

302army187

you sure the ticking/rattle sound is not detonation?

might wanna check that too.

dljorgy

I will check today. Thanks

dljorgy

Well I checked today and its not detonation. My header bolts were a little loose but not much. Its weird though because it happens alot at WOT. Sometimes when the RPMs are around 1500 in OD when cruising and I press the gas to go up a hill you can hear it but once it shifts and the RPMs are higher I cant hear it. Is it my lifters? I think Im going to try some Risoline and see if that helps.

ryan_89_mustang

Well it still sounds like it could be an exhaust leak because they are loudest under load and you're probably not hearing it in the upper rpms because your exhaust note is covering it up.

zebo87

check the gasket for the header also. if you have one.

302army187

sound's like a header/collector leak