I just bought a 2002 liberty 4x4 with a 3" lift and 86,900 miles on it. Last Monday the radiator reservoir started to boil over. Now the car never showed any signs of overheating or problems. I left it at a chain mechanics shops and they told first it was a thermostat, then it needs a new water pump, then it is a blown head gasket. I couldn't believe it so I paid to have it towed to another place. The second place said it was nothing but a radiator cap. I got it back on Wed and haven't had a problem since and the car runs great. I decided I wanted a third opinion so I took it to jeep for them to look at. They said it is for sure either ahead gasket or cylinder but again I haven't had any issues with the car and it never gets hot. You can't even feel it idle it is so smooth. I'm just confused as to what to believe. I drive it over 80 miles today with not one issue. Just need some help in this matter....thank you