Sometimes my 04 liberty gt will idle surge while in neutral or park and i think what ever it may be is also causing loss of power. Only seems to happen when its at running temp but only sometimes. Maybe the knock sensor? O2 sensor? MAF? Or all 3 haha?? Just wondering if anyone had had this problem and have fixed it? Due to it happening only half the time i drive the mechanic couldnt see anything on the computer and didnt notice anything when he drove it
Thanks in advance