Leaking exhaust manifold
Last week I got my exhaust fully welded and all leaks are gone now except for the ticking noise I hear from the rear of my engine.
Also when WOT above 3000 rpm I hear a really strange noise almost as if a heatshield is loose.. It's super annoying and takes away all the fun of revving it.
Only at 3000+ rpm is happends and when more than 75% of throttle is applied.
When I cold start my engine its also running rough, and once warm, its butter smooth.
Could this be the rear manifolds leaking? I had a clogged catalytic converter which may have caused it..
Any thoughts before I remove the subframe?
I also got the EGR valve removed and they welded the joint on the manifold shut.. Could that cause the same symptoms?
Thanks for the help guys, you are amazing!