Moriarty581
NAXJA Forum User
- Location
- Maine
I have an 89 XJ with the 242 4.0 5spd with somewhere around 200,000 miles on it. My mother tends to drive it more then I do as I work in Montana now and my jeep is in Indiana. From time to time when you start it up (hot or cold) the engine rev's to 2500-3000 and stays. i tryed tapping the gas pettle but when you do that it just goes up and stays. when you let out the clutch the rpms stay constant. generaly the idal stays hi for less then a minunte and then returns to normal. The strange thing to me is that it dosent do it all the time or in any pattern that i can see. within the past year i have replaced the MAP sensor,EGR valve, O2 Sensor, 6 Fuel injectors, Fuel Filter, Distributer cap and rotor, Plugs/Wires. It never had done this prior to last spring. The only thing that my mother does that is diffrent from me is occasionaly pumps the gas pettle (shes old and used to carberators) but it does it when that isnt done too. I am stumped so any help would be great.