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Discussion Starter #1
Hi guys,

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!
 

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What engine you running Joris?

I think EGR valves were on the early TS engines only.
 

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Discussion Starter #3
Im running a 3.0 v6. Its a phase 1 with throttle cable and old air mass meter.

Designs clearly show an egr valve, ive actually disconnected it myself, but someone else did the welding on the exhaust. :)
 
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