Originally Posted by SeVeReDiStOrTiOn
What year is your TJ? Any signs of dried coolant anywhere? Do you smell coolant inside the jeep and/or have a wet passenger floorboard? White smoke out the pipe?
There was probably still a little coolant in the rad or at least in the block...the 4.0 is tough but it'll overheat like anything else.
Check all around the stat housing and water pump that you replaced for dried coolant or dampness...what psi rad cap did you put on?
Floorboard was dry.. I remember I used the AC almost all the time, except for the last hour of the trip.. Why would the floorboard will be wet?
No smoke at all..
When I refilled, I start the Jeep for like 20 minutes and I was lookimg for leaks.. Didnt find any..
The rad cap is 18lbs.. Only thing funny about this cap is that it has like a red knob... It's like a security thing that wont let you turn the cap if the red piece is on.. It's the first time I see one like that...
I was thinking that maybe this cap is the problem but I didnt see rests of dried coolant around the cap..
One thing that I remember is that when I removed the cap to re fill, I noticed like dirt or some sort of rust dirt attached to the bottom of the cap.. Probably from the radiator when it was getting empty?