2001 Jeep Wrangler Engine cooling Problems

“I bought this used with only 54,000 miles on the engine. Within a year and at 65,000 miles, it began overheating and leaking coolant. My brother thought it was a cracked head or gasket. After tearing the motor apart and sending the head to be checked, two large cracks were found. The casting # is 331. My brother has been trying to find another head for me and was told by one of the sellers that he can't keep the parts in stock due to the high number of demand for this part.”

“I have an 01 Jeep tj Wrangler, I have recently noticed a drop in performance along with slowly vanishing coolant. Several days ago while in traffic, the oil pressure dropped low enough to set off the check engine light. As soon as I began driving again the oil pressure raised high enough to to clear the light. However as soon as I came to the next light the oil pressure dropped and the check engine light came on again. Upon returning home I looked up the symptoms on the internet and it all LED me to a very common cracked head between the 3-4 cylinder. …”

“2001 Jeep tj, 40,000 miles, slowly losing coolant over the course of 4 yrs. Used a pressure tester and verified no external leaks. However, used the same pressure tester with engine running, per the instructions, and the system gradually built pressure from 18 lbs to 25 lbs before I stopped the test. This indicates coolant leaking into the combustion chamber. Currently my oil pressure is good and there is no coolant contamination on the dip stick or under the oil fill cap. At risk (long term) is the internal engine bearings: cam and crankshaft. …”

“We purchased a 2001 Jeep Wrangler about two years ago. Back in november, the vehicle began to overheat. Thinking it was the hoses or radiator cap, we replaced both, which stopped it for awhile. In december, it began to leak again, so we replaced the radiator. It is now january and it has begun to leak again. We have ordered a new radiator, but it doesn't appear that the leak is coming from the radiator, and after reading some of the complaints on the internet regarding the 2001 Wrangler, we are afraid it may be a cylinder head. Has there been a recall on this? …”

“Had vehicle for three yrs and in december started loosing coolant and couldn't find the leak. I took it to Jeep and told them the head gasket is going . They said they would check it out and later told me it was a airpocket. I picked it up and ran it for another week, still losing fluid. This happened of and on for 3 times. On the 3 time of me taking it back they admitted the head gasket was shot and they had to replace the head. I went to take it home and 1/2 way there my engine started making horrible noises and jerking. I called the dealership and had it towed back the next day. …”