04/22/2026
What's that squealing noise in my diesel pickup? Well in this case it was an extremely blown out exhaust manifold gasket due to broken off manifold studs. Unfortunately to resolve this issue in a 6.7 PSD the turbo has to be removed to gain access to the manifolds. Now fortunately there is an easy enough fix for this. Ford sells a new longer stud for the rear of the manifolds that do not break. This F-550 is now squeel free and has more power to boot.