Coolant Leaking Problems of Jeep Laredo

For the past year my 2001 Jeep grand cherokee Laredo limited has been overheating if we idle for more than 1-2 minutes. As long as the rpms don't go over 2000 it will happen. I went on a trip last may up a canyon. Drove about 50 miles to the canyon and all was fine. While going up the canyon speeds stayed below 20 mph because we were following my in-laws and there was quite a bit of dust the ac was off I didn't notice that the temperature gage was raising. When I noticed it, I guess it was too late. I stopped the Jeep and hoped that it would cool down. As I lifted the hood. The top popped of the coolant reservoir and sprayed coolant everywhere. I was able to get home without any problem because I was going fast again. I put more coolant in it and it still overheats at drive-thru's and in rush hour traffic. I have to turn it off. In fact when I got it registered they left the Jeep running and the cooling system reservoir top popped off then. They told me to be careful and add coolant ASAP. I thought it was just me, but looking and all the other problems I realize that this is serious. The electrical is also shoddy. I thinks it's because the coolant has leaked all over the wires. My main complaint is the cooling though. You shouldn't have to worry about your car overheating in slow//stopped traffic.

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2001 Jeep grand cherokee. Leaking coolant. Replaced water pump and hoses. Continued to leak, oil pressure drops at idle and recently coolant has been found mixed with the oil. The head is cracked and allowing coolant to mix with the oil. Seems to be a common problem in Jeep heads cast around 2000.

I own a 2000 Jeep cherokee Laredo and when I cold start it the oil pressure goes to a bit over 40 but after the inline 6 4. 0 ltr warms up the oil pressure drops to zero and the check gauges light goes on. I have replaced the oil pressure sending unit twice and cleaned the oil pressure sending unit mounting nut and it has not affected the oil pressure. I have kept regular oil changes at 3000 miles. I am also losing engine coolant but cannot find a leak anywhere in the system. I have pressure checked the cooling system cold and it holds pressure, hot it loses pressure in about 15 minutes. This problem has been occurring for about 8 months now. I have read online that it is most likely a cracked head and appears to be a very common problem with the heads used on 99 to 01 Jeep inline 6's. If it is such a common problem when it Chrysler not addressing it? this is my second Jeep cherokee, my first a 98, and it was a great car but that one is junk.

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