Ticking noise from engine.

[ValiumMm]

Hey guys, i have a 1997, Jeep Cherokee, 2.4L Petrol Manual.

I was driving to the hunter valley from sydney, on the freeway going 110, started making this loud tick noise, sounded like the fan was hitting something, but i checked and nothing was there. After the freeway going 80 – 90Km/h it stopped. On the way back it started again on the freeway, but got louder the more i accelerated and going up hills. It kept doing it once off the freeway, then 15 mins later just stopped :S.

I then drove of 20 mins and started again just before i got home, then left it on idle and it went away :S

Oil, oil filter, spark plugs, were all done about two months ago.

Im not sure if it has to do with the engine getting hotter but i cant figure it out. Anyone have any ideas what it could be.

Regards in Advance.

[ValiumMm]

I found this.
It sounds like this
http://www.youtube.com/watch?v=s7Cx1izJ3E8&feature=related

if its the valve or not, im not sure

[glend]

There have been similiar noises made by KJ CRDs that have had belt pulley bearing go on them. It could also be alternator pulley, AC compressor clutch pulley etc.

[ValiumMm]

Its a Petol 2.4L manual Engine.
I think it could be the lifters. So im gonna get an additive and do an oil change and see if this improves it. Otherwise mechanic it is after that.

[ValiumMm]

Ok, so i added some more oil and the sound went away. I also got lifter free which i will use in an oil change next week, just to be safe. there must not have been enough oil pressure.