Join Date: Nov 2005
Location: Colorado Springs
I had the same problem for over a year while I was running 32" tires with 3:07 gears. The problem hasn't re-occurred since I regeared.
I think constantly lugging the engine fouled the plugs.
'01 TJ. 4"Full Traction. 1" BL/MML. 35" BFG Muds. ARB's front & Rear. Full skids. Warn Winch. Lots of other crap!