Re: WJ Hard start when hot
There is a known issue with the "newer" 4.0L engines that involves the heat soaked engine causing the fuel in one of the injectors to vaporize and giving what amts to a misfire if you attempt to start the Jeep before it cools down. Strange thing is, it can pop up at any time even if it never happened before. There is a TSB on the issue and a kit you can by from mopar to shield the injector. I did it on my wife 01' WJ and it took care of the issue for me.
I'll go see if I can find the TSB or the part number of the kit. If I do, I'll post it up.
01' WJ Larado - 4.0L i6
04' WJ Freedom Edition - 4.7L HO
07' WK Limited - 5.7L Hemi
09' Mustang GT - Good For the Soul