This is the 5th Cherokee I've had.
I pulled this one out of a swamp, 3 feet of muddy water, left there for about 6 months.
Had about 5 gallons of water in the engine.
Engine was stuck.
Unstuck the motor with PB Blaster and patience, replaced ALL the relays, alternator, starter, radiator, numerous other stuff.
Runs like a champ now.
No smoke, no knocks, very powerful and spiffy, the way they should be.
Only problem now seems to be the speed sensor, it's not shifting down properly and check engine light is on.
Will fix this week.
Oh, btw, the AC is ICE cold!
Easy to work on, good MPG (I get 20 with the 2wd) classic style, goes anywhere I want!