Four problems related to manifold/header/muffler/tail pipe have been reported for the 2012 Dodge Ram 1500. The most recently reported issues are listed below.
Exhausted manifold on driver side making loud noise, totally defective component.
The engine cooling has a bad design for the exhaust manifolds so 2 bolts on each side broke off in the engine block and now there is large exhaust leaks on both sides of the engine. This is the most common defect I have seen by talking to people and on any forum and am very surprised this isn't a recall already.
Exhaust manifold stud/bolt failure causing exhaust leak and ticking noise. Passenger side.
The contact owns 2012 Dodge Ram 1500. The contact stated that driver's side engine exhaust manifold made a loud ticking noise while driving at various speeds. The vehicle was taken to the dealer for inspection where it was advised that the driver side manifold bolt was fractured. The driver¿s side manifold bolt was replaced however the passenger¿s side manifold bolt later exhibited the same failure. The passenger side manifold bolt was not replaced. The manufacturer advised the contact that the warranty was expired and denied assistance with the repair. The failure and current mileage was 57,890.