i'm leaning towards spun bearings, if my dad is just lying to me and didn't change the oil while he was in florida.
cost of repair of spun bearings? estimated?
No idea on the cost of repairs (I'm the mechanic when it comes to my car), but it varies though depending on how bad it is.
If only a bearing is messed up, you can just replace the bearing.
If a rod or the crank is messed up, then you looking at a lot more money.
You can unbolt the oilpan and remove the rod / main caps and check out the bearings.
Crank and main caps on my 3S-FE:
Pistons and rods have been removed.
5S-FE has a balance shaft assembly which you'll need to unbolt to get to the rod / main caps.