Join Date: Apr 2011
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Does this look like an exhaust manifold leak
Is the black and white area at the “Y” intersection of the exhaust manifold due to a small leak in the exhaust manifold? I circled the black area in red and drew an arrow to the white spot. Maybe this is normal discoloration after 280,000 miles.
I’m stock and occasionally towed or hauled heavy across country but not on a monthly basis. I'm retired now and just started hauling heavy (12,500 GVW) on a monthly basis an expect to continue this for the next few years.
I do not hear any type of exhaust leak.
I am about to replace the exhaust manifold gaskets due to the exhaust leak at the #6 cylinder. You can see the black soot beginning to show. My plan is to loosen the manifold bolts, leave the manifold in place and change the gaskets and bolts one at a time.
I also will replace the 3 inch tube on the heater line.
I do not want to replace the manifold until I have to, but if this is reason to expect a new manifold in a couple of months I'd think it would be best to wait on replacing the gaskets.
What do you think?
2007, 3500, 4x4, dually, 5.9 CTD, SunCoast 48RE w/ 3D torque converter, 4.10 rear, stock tires, Amsoil oil bypass, TruXedo Deuce cover, BD exhaust brake, Rancho shocks, Firestone Air Bags, StableLoads, SuperHitch, 300K miles.