I have a 2001 Jeep Grand Cherokee 4.0L with 125, 00 miles on it. It runs OK but I have 3 problems with it. First problem is that the oil pressure is good up to 60 Psi when the car is cold but after it warms up to normal operation temp. The oil pressure is down to 10 PSi at idle speed (700Rpm). It goes up to 40 Psi when I accelerate above 1,000 Rpm. Second problem is that the car is hard to start. It has to turn over about 15 times before it starts running. Third problem is that I have to add coolant to the overflow bottle every couple of days. None of the above problems seem to have an effect on the car running. It runs well with plenty of power. I don't think the head gasket is blown because there is NO white smoke when the car is running. What could it be?
have the same problem?
Thursday, October 18th, 2007 AT 6:42 PM