Hey guys. My Cherokee is a 1999 sport, auto, 4.0, 4wd. with 90kmiles.
I have get hesitation while accelerating to enter a highway or pass someone.. It does it at about the 45 mph mark.. The harder I press the gas, the more you can feel the hesitation. If the AC is on, the hesitation is so much worse. I assume the AC is causing a much bigger load on the engine..
Now if I hit the gas HARD, sometimes the hesitation is not there.
You guys have any suggestions? A full tune up was performed about 5 days ago.. (plugs, wires, cap & rotor, air filter) TB was cleaned too.