Longtime lurker and first time post, so here it goes:
For the past month or so now my 98 TJ 2.5 4cyl/auto w/150,xxx has been acting terrible on cold start ups. The best way to describe the problem would be that it seems to lose spark among one or more cylinders until the motor hits normal operating temp. I would think that it may just be a cold engine but this sometimes happens while I am driving with normal engine temps...this sometimes leads to a dangerous scenario of practically losing all power on the highway until the jeep decides that its ready to chug along once more.
Now for about a month I have been lurking around this forum amongst others trying to pinpoint the problem but am still at a loss. So far I have replaced spark plugs/wires/coil distributor cap and rotor yet I am still having this issue.
Any help would be much appreciated,