Guys, I have 91' XJ 4.0 litre, auto transmission. Something strange happens when I try to accelerate. Engine comes to about 2000 and some more RPM and then stalls or looses breath. Then, after I pass maybe to 2500 it accelerates like rocket. Strange thing. Few weeks ago I posted this question here but no answer. Since then, new fuel pressure regulator was installed, new spark plugs and wires, distributor cap... etc. Nothing better. I've noticed that it happens more with warm engine, less with cold. Can it be something with crankshaft position sensor? This one I haven't pulled out yet, it's very hard to reach down there. Car has exactly 200 000 kilometres (about 124 000 miles) and catalysator is still original, is it too much? Please I will really appreciate your help, you are my only hope. I live in part of Europe where only few Cherokees are around and no chance to ask anybody something serious about Jeep. Thanks. Davie
- posted
19 years ago