Jeep xj no start/ stumble

98 XJ
4.0 automatic 4wd 204k

The first attempt to start the jeep I let it crank for roughly 10 seconds and it didnt start. When I stopped and immediately tried again it fired right up, roughly stumbled and then died. Third attempt it ran flawlessly.

I looked for any obvious vacuum leaks and saw nothing. Tune up is less than a year old. I dont think nss because it stumbled and died after starting. I also dont think cps because it did not happen again.

I proceeded to shut it off and restart it 4 times and couldn't recreate the problem. The rest of today's driving was done without an issue. Any thoughts?

Sent from my SM-G950U using Tapatalk

Let it sit again and put a fuel pressure gauge on it before you start it. See what it does.

Make sure your battery is in good shape and cranking voltage is above 9.6v.

trippled said:

Let it sit again and put a fuel pressure gauge on it before you start it. See what it does.

Make sure your battery is in good shape and cranking voltage is above 9.6v.

Click to expand...

Battery I know is in good shape. I have also recently checked fuel pressure. But I also did just put a big lift on so it's possible the line may have inadvertently been damaged. I'll check, thanks

Sent from my SM-G950U using Tapatalk

Its not the fuel pressure. Also I am noticing that the idle raises for a moment a few seconds after the engine runs on a cold start. Odd behavior

Sent from my SM-G950U using Tapatalk