Worked at an exhaust shop for a little over a year. They ALL break manifold bolts. The GMs a little less often it seemed with ford being the worst but it all depends on age and how hot they get. Where I live we get both extremes of 100F+ and -30F- so probably see it more than alot of other places but usually at about 150k miles you'll have a broken stud or 2 pop up.Hello all. I had a 2012 1500 5.7L and had an exhaust manifold bolt break on 2 separate occassions. I no longer have that truck, but now I have a 2016 2500 6.4L. Would you think that I can still expect to potentially have the same issue with the exhaust manifold bolts or did Dodge correct this problem with the 2016 6.4L engines?
I'd say Its pretty much normal for any modern vehicle unless you put headers on it with individual ports.