The engine on my 2001 cherokee with the 4.0l recently
blew. I got a great deal on a low mileage
Used engine out of a 1999 cherokee that was
Wrecked. My question is do the make an adaptor
For the wiring harness to switch from the coil
Pack to a distributor??? Or is there some way this can be
Done without getting a new wiring harness and
Computer??? Any of your input would be greatly
Appreciated thanks

Matt

 

Nope. Just install your 2000's CMP whre the distributor went and coil rail as normal. The only difference between the two is that the 1999 head does not have mounting holes for the coil pack rail. But this is easily worked around:

 

What about the reverse for a 98 head on a 01 block using a dizzy, if possible?

 

Blocks are identical. You could put an entire 01 into a 1998, just ignore the coil rail mounting holes.

 

There was/is a thread on JeepForum .com or NAXJA .org that shows a pic of the adapter clips that hold the 2000 ignition coil rail to the valve cover hold down screws on pre-2000 XJ's. Pretty clean install. Alot cheaper than a distributor/PCM changeover.

 

So is the sensor that's going into my 01'
Distributor hole in the block a spline or is
It a magnetic sensor that counts teeth?
And do I need to set both engines to top dead
Center before swapping the distributor for the
Sensor?

 

Yeah it needs to be indexed just like the distributor. The Camshaft Position Sensor is used for the fuel injector timing.

 

 

Where would someone get tho's adapter clips? ?

 

You make them. just find some strips of metal drill and bend .

 

howvabout 2001 xj with a synchronizer to a 1999 with the distributor?