One problem related to engine exhaust system has been reported for the 2004 Jeep Liberty. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2004 Jeep Liberty based on all problems reported for the 2004 Liberty.
I was driving to work and my car started smoking under the hood and the exhaust was coming into the cabin. When I looked under the car, oil was pouring out of it. I took it to the shop and they had to replace both valve cover gaskets. Two weeks later my oil light came on and now my head gasket is leaking. This car is a 2004 and has 56,000 miles on it. The repairman said that he has never seen the valve cover gaskets go bad under 100,000 miles.