I have had to replace three New starters and see and smell smoke coming from that area. Have checked all relays and fuses. All good . Starting to check wires next. Any help would be appreciated. One more question could engine be locked. It did overheat due to broken radiator prior to this problem. Thanks
So- a lot more detail would help:
1 - please describe why the starter needs replaced to begin with.
2 - why have you replaced the starter 3 x ?
3 - what are you seeing / hearing / experiencing when trying to start the jeep?
Give us the whole story and maybe it will lead to a fix. At this point, it COULD be ANYTHING because we have nothing to go on. It is hard to do a decent diagnosis without some detail.
@KJowner may be following the right track in wondering if the engine even can be turned by hand.