I have an 88 cherokee that wont start. I have checked the crankshaft position sensor, and got a new battery, had to do a distributor swap. I know the 90 and 91 engines are different but did they run different distributors before the 91? Everyone I have asked has told me that it is the CPS and once i change it should start right up but my luck has not been so nice, any help or guidance would be appreciated...

 

Did it start before you swapped the distributor? Has it ever started after? Did you change anything else right before the no-start stuff began?
How did you check the CPS?

Any spark at the plugs?

 

Which flexplate did you use? If you used one from the 91 it won't start for sure.

 

It ran before we did the swap but had a blown head gasket. The cps I didn't check, just got a new one since all the mechanics I talked to were positive it was that. I checked spark going from the coil and there was none.
As for the flex plate I'm not 100% sure, I'll have to double check on that when I get hkme

 

Early has a bunch of holes around the perimeter and HO only has a few sets of them.

 

The thing that's perplexing thing is i bought it from a guy and I got the whole deal trans, t case and engine. And threw it all in at once, and it's cranking but won't start. The coil isn't getting any spark at all.

 

Well then, the way I understand it you've got the wrong flexplate.

 

or you just have a bad coil.

 

The Renix system will not run with an HO flexplate.

 

X2...When I dropped a H.O. in my 90, there was a big difference in the flexplate.

 

If the OP had to do a distributor swap, he's obviously got an HO motor with HO flexplate. A 1990 would not have needed the distributor swap.

 

So if i change my flex plate, Will I still be able to run the renix coil and everything else as is?

 

The flexplate has to be for a Renix. I suspect you have an HO flexplate on there. Was it necessary for you to swap distributors because the one on the donor wouldn't plug into your Jeep's harness?

 

Exactly, The harness was different, Im going to check the casting number on the block and see what engine I have exactly. Thigs are a little slow cuz its dumping rain everyday and Im working on getting my daily driver driving again, I managed to drag my rear diff on my toyota and suck up a bunch of water into the axle. So this jeep is going to be taking the place of the toyota for wheeling