So, I finally got the truck in to have the manifold gasket replaced (per
my posts a little bit ago).
Walked to the mechanic's this afternoon to find my truck still in the
shop with the hood up. He was supposed to call if it wasn't ready!
Ah, well. He said the manifold was warped, and he'd sent it out to have
it machined. That was done, and the truck will be ready tomorrow.
In my short Google excursion, I saw that warped manifolds are usually
replaced. But this is Outback Australia, and replacing parts ain't
always easy (and doubly hard for a Yank Tank), so I imaging machining is
probably the norm around here.
But for my particular truck (2001 Dakota), should I be concerned? Will
a freshly machined manifold be as good as new? Are there consequences
to this I should know about?
And, how does a manifold warp, anyway? Was it likely always that way,
and the gasket's just gotten old enough for me to notice the tik?
And, could a warped manifold cause the P0455 code (Exhaust leak?) The
mechanic didn't seem to think replacing the gasket would fix the leak...
As always, any advice appreciated.