2001 Toyota 4Runner Need to replace engine?

Hi rpearlberg,

The phrase " threw a rod " means the one of the picton connecting-rod has failed and when this occurs, the rod might break through the engine walls causing a big hole.

Under such circumstances, you would need a new engine, at least a short block, meaning the lower part of the engine.

If the damage does not affect the engine block, a rebuild with replacement of the crankshaft and piston with connecting-rods plus other related parts can be done.