2004.5 RAM/Cummins exhaust manifold leak advice needed

[brutal]

Soak them replace the gasket and re torque the bolts. Take a look and see if its warped at all too before going crazy. Sometimes they just develop a leak.

Would you recommend just replacing the one cylinder that appears to be leaking? I would assume that if it's not warped at all, I would need to loosen everything to replace even one gasket.

[DOC]

Would you recommend just replacing the one cylinder that appears to be leaking? I would assume that if it's not warped at all, I would need to loosen everything to replace even one gasket.

If you can change them all I would do it while its out. You can slip a straight edge like a ruler on the head to see if its warped as well as the manifold. A leak in the manifold will make you loose boost so I would change them all and it shouldn't be any harder than changing one. Just more of them. You can spray soapy water on the other cylinders where the manifold is and look for bubbles telling you its leaking.