Join Date: Nov 2004
Location: Hot & sunny south..
Bad air/fuel mixture is usually a ping kind of noise. Is the knock coming from the top or bottom end of the engine?
Almost every 4.0 I have heard (including mine) knocks and ticks noticably.
Common causes are sticking lifters, and cracked exhaust manifolds. But it can be more serious like a rod knock, but hopefully not.
'97 XJ... 4.0 4x4 AW4. 2" budget boost w/t-case drop.
31x10.5 Cooper Discoverer ST's on 15x7 Cragar Soft 8's.
Intake, Ported TB, TB spacer, Super 40 Flowmaster.
Baja Aux. Lighting.
Green Jeep Club #185, Nowhere to Wheel Jeep Club member #1
'04 WJ - Columbia Edition - 4.7HO 2WD