Help with surge please.
Hi all. I have a 95 grand Cherokee it has a v8 in it. When I hit the gas past 2k rpm it surges. If I mash it to the floor it really surges and bucks hard. After a little drive it will loose all power and will only idle sounds like a bad miss. As soon as I turn it off and back on its fine again for another mile or two then same process. When I hit it hard it's like it hits a rev limiter trans shifts smooth ect. Tried new plugs, wires, cap, rotor, crank position sensor, and cat converter. Am very stumped. Check engine never comes on.