How many jeeps are out there that tick? My 05 6 cylinder has had a slight tick since I got it sounds like an exhaust leak I can't figure it out. I just wanted to see if this truly is just a jeep thing.
My 2001 TJ Sport has a light ticking. It had it before replacing the exhaust, and it still has it. I assume that it is lifters. She carries about 30Lbs of oil pressure at idle, and 45-50 on the road, so I am not worrying about it, I'll just turn the stereo up a little.
There are a lot of guys on here with more knowledge than I have. Youi might want to hear what they say.
Mine does the same ticking untill it warms up. I thought I had an exhaust leak but come to find out it was a hole in my muffler that was making all that noise. Replaced the muffler with a banks monster and now I couldnt hear the sound over the new exhaust even it it was still ticking!
There is some discussion on Jeepforum.com that this is due to low zinc oils mandated by the EPA. The 4.0 is of an older flat tappet(lifter) design that should have the old type of oil. The additive is called ZDDP and still can be found in Valvoline VR1 racing oil and some others.
It came up in discussion in relation to the OPDA failures of 05/6 wranglers.
Mine used to tick-a retired mechanic thought dirty oil/lifter/crankcase. Flushed the crankcase-switched to full synthetic and Lucas oil stabilizer. Also switched to Wix filter, that was about 8-9 thousand miles ago-and 2 oil changes-no more tick-course winter time maybe why can't hear it but don't think so-used to hear it in the garage.
I have the ticking in my '04 X ... once temp gauge hits 1/4 mark it stops. A mechanic friend says its the metal gasket near the exhaust manifold -- once the gasket warms up and expands, the ticking noise stops. I've learned to ignore it ... AND I LOVE MY WRANGLER!