Should have an automatic belt tensioner - if tension not correct replace tensioner
4.0L ?
If it is a serpentine belt - adjusts automatically through belt tensioner If not check the alternator for adjuster or Power steering pump
Your belt is probably stretched or the tensioner is weak. Try a new belt, or replacing the tensioner. If it is still loose get a 1/2 inch smaller belt.
yes, any top for an 1987-1995 can be switched out
Depending on engine, it is either a Dana 35 or Dana 44.
You don't. Serpentine belts are adjusted by a spring loaded device called a belt tensioner. If you belt is loose, then the tensioner is broken.
If it has square headlights and leaf spring suspension on the front end then it is a YJ
When a serpentine belt is loose it means either the belt has stretched and needs replacing, or the idler tensioner is defective and needs replacing, or both.
look at the top radiator hose, follow it to the engine and that metal thing is the thermostat housing, inside is the thermostat.
I do not think so, my 89 YJ had a normal alternator belt, but my 97 TJ has a serpentine belt, so aside from any mounting differences the drive system would be different.
No you can not, It is kept tight by a spring loaded belt tensioner with a smooth pulley on it. Probley needs a belt tensioner on it.
yes.