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I am getting rid of my Xj 'cause I just bought a new car. It's an 86 with a 4 banger in it, and auto tranny Engine was replaced in 11-05 , has under 90k miles on engine, Rebuilt head, new oil pump, new water pump, plugs, cap, rotor, belts, etc. Running Mobil 1 in it, no drips, no leaks, runs 75...

86 xj, 2.5L, tbi, auto, new tps, o2 sensor, plugs, wires, cap, rotor, fuel pump, fuel tank, filter When cold out, starts and runs fine, shut it off for an hour to go shopping, and starts a little harder, but runs like cr*p, seems like it isnt getting enough gas. After it warms up again, runs...

As I was trying to get those two stupid top bolts out between engine and tranny while swapping my 4.0 in my wife's 88 xj, I broke the hose end off of that little vacuum motor that controls the flow of coolant to the heater core. What will happen if I just cut that whole vacuum motor out and...

I have an 88 xj (4.0 L) with a bad cylinder that I need to replace the engine on. I can get a 91 xj 4.0 (the whole jeep ) for nothing (it was wrecked). What is the difference in the engines between the 88 & the 91 ? What all would I need to steal from the 91 to make the engine work in the 88 ?

My wife's 88 XJ with a 4.0 has been running rough lately, and today it was severe, so when she got home from work, I decided to give it a tune up since it was overdue for one. Well, the tune up didnt help, however I did determine there was no compression on #4 cylinder. When I pulled the plugs...

I recently replaced the head on my 86 xj, 2.5L 4 banger. Now I have no or mimimal heat, where I used to be able to toast marshmellows with my heater before the head change. I thought that maybe the new thermostat I put in was stuck open, so tonite I changed it. Still no heat. I had the radiator...

I just put my 2.5 L 4 banger back together (86 Cherokee) after having the head rebuilt because of a burnt valve and I still have one of the problems I had before, Zero Oil Press at idle. I put a new oil pump on, cleaned all the crap out of everywhere, new push rods, rockers, lifters, & rebuilt...

I have an 86 xj with a 2.5 L that is only a 3 binger at the moment. I have no compression on #1 cylinder. I am thinking it is valves, but want to get your opinion as well. It has no compression at all, doesnt burn much oil (no smokey exhaust) runs really rich (can smell how rich it is running)...

I have an 86 Cherokee with a 2.5 L TBI 4 banger and an auto trans. which is running on only 3 cyl. (no compression on #1) & I found an engine from an 83 AMC Eagle 2.5 L 4 banger with carb and manual trans. Does anyone know if I can swap this engine into my Jeep, as it only has 50000 miles on it...