I moved it.

 

What all did you get wet?

 

Lol nothing got wet, all I did was unplug the battery and unplug the wire to the 1st cylinder spark plug before changing my mind to wanting to clean the engine bay so i I plugged the battery back in and gave it a crank, totally had forgotten to plug the wire back on to the spark plug. Now it turns over on the starter but nothing is firing.
So far I have proper voltage, fuel, spark, starter is turning it over. ?????? Did the 1st cylinder flood with gas and make it not want to start? Or did I some how throw the timing off by not having the 1st cylinder fire like it should? I'm lost at this point

 

Now I understand.

This late model stuff is a bit out of my league. Check coil connections, anything you mighta bumped. Start unplugging connectors at distributor, coil, TPS etc and try again.

 

OK so i have a 98 Cherokee classic 4x4 auto my motor developed a knock anyway long story short its out now just pulled it was wondering about what year, makes, and models of the 4.0 would i be able to use didn't know if there are some differences or if i took one down to the long block and throw all my accessories on would it work? thanks

 

I think '97-99 XJs will be your only direct swaps. Can someone confirm?

If you swap components, I think '91-01 will work, up to '06 in a Wrangler.

I'm far from an engine expert.

 

I believe that's right. At least the head will bolt right onto those blocks and all the sensors will work.

Where are you in GA?

 

30 mins south atl. and ok i hope a engine guy will chime in!
by swapping components you mean different location alternator,ac compressor stuff like that? thanks

 

Yeah any year XJ or ZJ 4.0Ls is a direct swap like a long block. YJ and 97-99 TJ I think also work. Prior to 1997 in XJs there's an extra hole at the head for a temp gauge that needs to be blocked off. There are a few minor changes post 1995 that make those engines more desirable but any of em will work. (until 1995 there were uneven cylinder bore sizes and a brace was added to reduce NVH and piston slap)

Easy mode

 

Kinda weird question, friend just got a 95 Dakota with a 2.5 in it. It looks just like the 2.5 in the Cherokee, could he swap in a 4.0? Its a 5 speed if the matters.

 

Well it's already got an AX-15 lol... how much time and money doe syour friend have? Any engine can be swapped

 

so all the 4x4 and auto trans stuff should not matter right? example if the motor come from a 96 grand cherokee 2wd it will still work?

 

Yep all the 4.0s in that age range will bolt up. Just keep your sensors, accessories, transmission, etc.

 

thanks alot

 

Anybody got an idea for mine? Lol I'm so lost since everything was working top shape and just after leaving the 1st cylinder spark plug off, it doesn't want to start any more?