Mitsubishi Repair Problems? Ask a Mechanic for Answers ASAP
Welcome, I'm Chris (aka Moose) I prefer to work when others don't, I am here around lunch and after dinner till after midnight.
A junkyard engine that you can inspect and freshen up while out is a good option. Also look into aftermarket refurbished long blocks with a warranty. I show a 08-10 being compatible.
This is my 1st answer, but does not have to be my only answer. You the website and myself expect you to have a great experience with my help. Please let me know if you are pleased by selecting a star rating above or by replying and saying your pleased. Not rating or rating 1-2 stars does not benefit you nor me in any way. Follow up and reply as often and when needed, there is no extra charge to do so.
Your sludge engine, is there noise while running and is the compression good?
The freshen up a used engine you would replace any common wear parts on the outside, replace easy to access seals and gaskets. Flush the engine to clean it out.
If your noise was coming from within your engine then it could be a cam, rod, or main bearing or valve train issue. Overhaul would be needed to address those, flushing to remove the sludge alone would not resolve this.
Hello again Chris here,