Something appears to have snapped on the inside of the motor. Likely a rod (even though I never heard or felt it happen), so I am on the hunt for a new engine.
OMG! How many miles are on your engine and was all the maintenance up to date? Let us know what you find out if you get it diagnosed.
Ugh. New engine is in, and it runs, but there is obvious piston slap. It is under warranty, but the wage they will pay out to a mechanic is not enough to cover what it would cost to rectify, so I have to take the rig to LA where the manufacturer is located to have them haul it out and true up the pistons...Any updates on engine ?