Well the JK needs a crankshaft.
Jeep randomly started making a ticking noise from the motor one night. Was going up a steep hill and dropped down in 1 then 2 and that's when it started. Took it to the dealer the following day. They said there was no oil in it. I change my oil every 3000 miles. Never had a problem. I was right at 3000 when this happened. Not to mention 2 days before this my buddie calls and is asking about why his jeep oil light keeps coming on. I've been cursed. ANYWAY. The dealer put 5qts of oil in it and the ticking is still there. They say it needs a crankshaft. $3500. Yes I know it's high and that's why I'm getting a second opinion. The engine is not leaking oil. Nor burning it. The crank seal apparently has a super small leak. Not enough to drip. Where is my oil going!!!??? Have you ran into this?