Redtruck-VA
Senior Member
- Joined
- Jun 29, 2010
- Posts
- 5,864
- Reaction score
- 984
- Location
- Virginia
- Ram Year
- 2003 & 1989 D250 RWD
- Engine
- Hemi-5.7, 5.9 12v & 24v diesel
Since it is not fixed, they absolutely mis-diagnosed the problem. Does this engine feed oil to the lifters from the rocker arms? If so it could be a blocked push rod keeping a lifter from pumping up. This would go along with them saying there is sludge in the engine. With them changing the lifters they had to remove the push rods, so I assume they inspected the push rods for wear and cleaned them out. As miles add up the valves sits deeper into the seat increasing lifter preload. Clatter is a lifter not pumped up or the lack of preload. I don't see how rebuilding the heads are going to do anything other than possibly be an excuse to go back in to clean the rocker arm assembly and push rods if they didn't do it the first round. This pretty much in my mind is a oil feed problem since the lifters were replaced already. It would be interesting to see what this looked like going into the engine, ie was the engine sludge up, still wet with oil, dry, general condition of the bits and pieces. These things tell the mechanic what to look for during a repair. I would ask them specifically "what do they expect to accomplish by doing the heads?" Did a cylinder test indicate there is a leaking cylinder showing bad valves? Good luck and keep us posted.