Hey guys I have a 94 jeep grand cherokee ltd... now the problem is that it does over heat and the antifreeze will boil in the reservoir what's the cause I don't know... I was wandering if you guys will know what the problem is and how to fix it.
Any suggestions ,advice or feedback would be great!

Another questions is what causes it to overheat?

Likely a head gasket on those... 4.0l?