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Have a 95 YJ with a 4.0 5speed. Slight cam, lifters, 62mm hesco throttle body, cold air intake, Full Banks exhaust. All new plugs wires, etc. Timng is jumping from 10 degrees to 35ish degrees at idle......... Timing chain is brand new. Checked marks and there lined up for correct timing. I...

I have a 95 yj 4.0. Been having issues I cannot figure out. Has 62mm hesco throttle body, spacer, cold air intake, New hesco adjustable fuel regulator, new plugs cap rotor, fuel filter, timing dead on at 14, no vacuum leaks. Jeep hesitates and then kicks in like nothings wrong under...

I have a 1995 yj with a 4.0 liter. It has some upgrades like the 62mm throttle body, banks cat back exhaust, cold air intake. It drives fine at normal speeds, but feels like a little hesitation is there, kinda like missing some power. NOW the real issue I have is that at High RPM shen I get...