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Did you hear an exhaust tick to clue you in on the crack or was it just a code that indicated the leak?


I stumbled on my cracked manifolds while removing the heads to fix bent valves, there was no noticeable tick(any more than usual). I saw the cracks and thought "there's my check engine light cause". Now that i think about it, my trouble code was probably p0420 catalyst efficiency below threshold. I solved the problem with headers from RPW. <img src="/forums/images/graemlins/smile.gif" alt="" />

2001Sport 3.0-Headers-Cage-RoofChop-NP231/D300-D44/ARB-Ford9/Yukon/3Link-37's+H1's-PSC Assist-108:1