I have a 2004 wrangler unlimited (LJ) with a 4.0 and just today out of the blue.... On the first crack all the gauges on the cluster maxed out then came back with no starter... tried again and got it to crank for 5 seconds with no start. after a few cranks it started. I gassed it. rpm's rose. when i released accelerator it just dropped off again. next start it would idle at around the first dot above zero. and move slightly up and down then die after awhile or if i hit the gas and let it go it seems like the engine just lets it fall and die. beside the idle it seems to run fine i just need to keep the engine running with a little gas applied. this is the only problem i have ever had with my jeep. i did not recently get gas. The only think that worries me is the way the gauges seemed to freak out the first time then the problem started.
Thanks for the help in advance.