Recently got the wife an '04 Liberty, so I've been running her Neon as my DD. The Comanche sat for about a month until the tranny went out in my brothers Ram. I let him borrow it, and about 2-3 weeks later, it's developed this knock. I've gotten some opinions about what it could be, but wanted to see what you guys thought. '86 2.5.
Not sure how long it'd been knocking before I found out, my Dad was actually the one that heard it and told him about it. He added a quart of Lubriguard 15w-40 diesel oil about 2 days before they noticed this. Any insight or opinions is appreciated, guys. Also, if the motor is in fact on the way out, what are some good options? Rebuild? Another 2.5? Some other swap?