Just Purchased a 1998 Jeep Cherokee Sport for $350. From what the previous owner told me it needs a Head gasket. He had a small leak in the radaitor and put some stop leak in it and he said it jammed the thermostat closed. It has about 160K on it, interior is decent, no rip or tears in the seats, no rust from what i can see. Sounded like a good deal. How difficult is it to do a head gasket on the 4.0L? Thanks guys.

 

Yes, you can fix it and more than double your money.