I have a 2006 Dodge Ram 4x4 with the Hemi MDS engine. I have had too many problems with this truck to list but now I have a major problem. Got the truck back from the dealer after the last repair and parked it. Went out and started it about a week later and a very loud and noise started banging and popping from the left side of engine. Shut it down and restarted it, same thing. I just let it rattle and bang but the warmer the engine got the quieter it got. Engine was also missing. When the engine warmed all the way up the missing and noise went away. Matter of fact sitting at a stop light you can't even tell the engine is running. When its cold the engine misses and has lifter noise and pops every now and then. There is to me an excess of watter coming out of the tail pipe and where the pipe hooks on. Check engine light is on. Dealer mechanic said something on the MDS broke in the number one cylinder valves and would cost $1.200.00 to fix. There is a very small coolant leak coming from that same corner of the engine but they say they can't find it. I believe I have a cracked head or blown gasket. Any help out there? I'm 72 years old and can't work on vehicles anymore. Truck has 86000 miles on it and was to be my last retirement truck.