Just put motor in my xj had it running great but would sputter a little when I shifted and on take off kinda like it hesitated .. took for a couple test drives and it smoothed out a lik bit. Then one day was drivin and it just back fired a couple times and then shut off and will not restart. The distributor was damged so I replaced that and still will not start it is firing but not startin . Also it is gettin fuel. I think it might have jumped time but want to get a couple more opinions before I go and replace that ... thank u

 

Year and engine size ....?

 

89 4.0

 

What you mean fireing but not starting ? Have you checked for spark.
?

 

CPS would be first on list to check.....http://www.lunghd.com/Tech_Articles/...iagnostics.htm

 

Jumping time is very very rare . False diagnostic here leads to a lot of unnecessary work .

 

It is get spark to plugs abd fuel to the rail ... im going to check the cps and see if thats the problem thank u very much for ur help bud I didnt want to do all that extra work for nothing

 

If you're getting spark, CPS is working.

Click on the link in my signature and try # 12 and then # 13.

 

Signature? I dont see what u are talking bout

 

Right below here. See the green and pink lettering? Click on the pink.

 

Ok I tried everything but still no go ... it getting fuel and fire but it wont start I dont understand it

 

What's that mean? Specifics?

 

I did wat u told me to do with the indexing and cps fire is making it to the plugs and fuel is getting to the rail but it wont start I crank it and when I stop it will backfire through the exhaust

 

Sounds like the indexing is wrong.

Sure you're at #1 TDC?





Setting Your 4.0 at #1 TDC
　

With #1 spark plug removed, turn the engine over clockwise using the 3/4" front crankshaft bolt. You will see the degree marks on your front cover. Mark the 0 with chalk or white-out.You will see the timing mark on the balancer. Mark it with chalk or white-out. While turning the engine over, put your finger/thumb over #1 spark plug hole. As the mark on the balancer approaches the marks on the front cover, if you are coming up on #1 TDC, pressure in the cylinder will push on your finger. If there's no pressure, you're at #6 TDC and need to crank the engine over until you see the marks coming together and you get pressure. Set the mark on the balancer to the 0 mark on the front cover.

 

Just tried to index but everytime the marks line up the #1 piston is at the bottom