Hi Guyz
Heres a little story of how my JK is on its 3rd engine;
It started with a ticking sound at idle (like the sound my old 5litre hz holden used to make when the lifters ticked prior to the oil pressure building up).
I took it to the dealership service dept and asked them to have a listen and the mechanic who had a listen said he could not hear anything - so I suggested that I leave the jeep overnight so he could start it in the morning and hear better the problem.
X__The mechanic still said he could not hear anything out of the ordinary and said take the vehicle and don't worry about it. (damn it - I like to worry about misc noises - LoL) anyway about a week or 2 later;
X__The ticking got louder on start up and was audible after warm up and whilst driving, so I returned to the dealership and again begged them to have a listen - again I was told it was nothing (I was getting embarrassed because they looked at me like i was some kind of paranoid stupid idiot - D'oh) so I left with my tail between my legs - then about a week latter;
X__The little tick became a loud knock / rattle - I immediately suspected a big end bearing and was only a kay or so away from the dealership so I drove it in and asked them to have a look - The mechanic who had a listen said immediately Big end bearing! and of course no parts in the country (this seems to be the Jeep way - all parts seem to have to come from Singapore) I asked how long this would take and they said - weeks - I must have looked a bit dejected because the dealership said drive it until the new parts (short block) arrive or it completely $h1t$ itself - that was good news to me as it is my daily drive.
Got a new short motor installed and all is good again - for about a week
then again with the ticking! D'oh D'oh D'oh! - rinse repeat LoL
I took it back to the dealer, F@#K me they could not hear the tick, they said go away its all normal - so with less than 1000km on the new engine snap crackle and pop another big end bearing - rinse repeat! stick in another new motor!
So my jeep speedo now says 122,000km but my motor has 30,000km ish on it - this engine is way better - more grunt and better economy and this engine doesnt seem to use any where near as much oil - this one can make it between service intervals without needing to be topped up! yay
The dealer never really told me what the problem was - they did agree that it had something to do with the oil system - "Brilliant" LoL
So JKers if your Jeep starts to tick on start up and your out of warranty - STOP before you spin a bearing!
Cheers Hunty