2000 Jeep Cherokee: engine overheating

Filed Sep 2, 2018 · Engine · CT

Crack cylinder head .when driving start to overheat.when check on it I found the problem and I researched and found this is a problem with the cylinder head for jeep years 2000,2001,2002.they say those years the iron ore was very expensive on the world market.

Filed Sep 25, 2015 · Engine · 181,889 miles · TN

Tl* the contact owns a 2000 jeep cherokee. While driving at 25 MPH, the temperature gauge indicated that the vehicle was overheating. The contact waited until the temperature gauge read normal and the vehicle was restarted. The vehicle was taken to the dealer where it was diagnosed that the shield intake manifold and the shield exhaust manifold needed to be repaired. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was 181,889.

Filed May 13, 2014 · Engine · 36,000 miles · NY

The fan that cools engine that chrysler installed in the factory had little cracks that eventually broke fan blade and was causing the vehicle to overheat. Fan needed to be replaced at $500.00 because of inferior plastic fan that they put in the vehicle at factory.

Filed Jan 1, 2014 · Engine, Transmission · 126,000 miles · MI

As with many other xj owners, my cylinder head is cracked due to the defective 0331 head. I bought the jeep about 3 years ago, and about a year ago coolant started leaking into the oil. I talked with several mechanic friends and the head fleet mechanic at work told me the cracked head is extremely common. I was stranded on the side of the road, had to have the vehicle towed, and it sits as a giant paperweight in my garage as I cannot afford a new engine. I bought the vehicle with 122000 miles and have never taken it off road, modified it, or traveled more than 60 miles in a day. It has never overheated until the head cracked. Now I am looking at an enormous bill that my family cannot afford. I fail to see how so many vehicles can be affected and there is still no recall.

Filed Apr 3, 2013 · Engine · 140,000 miles · MO

Driving on the highway at 60mph and jeep starts to overheat. Had mechanic check it out couldn't find a problem. Replaced radiator, thermostat, coolant system flush, and new antifreeze replaced. That seemed to fix the problem but then I would have to keep refilling antifreeze but it was not leaking any this went on for about a year then I noticed brown gunk in the overflow container and had a mechanic check it out and he said that was due to the antifreeze mixing with oil most likely caused by a cracked cylinder head. After some research I found it was extremely common that the 2000 jeep cherokees would crack their cylinder heads between the 3 and 4 heads. Very annoying to diagnose and fix.

Filed Feb 9, 2013 · Engine · 127,000 miles · IA

Temperature gauge showed increase past normal operating temperature and into red-marked range. After letting engine cool and shutting it off, coolant reservoir was empty. Refilled coolant and drove until it began overheating again, and coolant reservoir was again empty. No signs of coolant on the outside of the engine, none leaking out below. Suspect cracked head and coolant leaking into the engine.

Filed Jan 16, 2009 · Engine · 97,358 miles · AZ

Replaced cracked cylinder head on 2000 4.0l jeep cherokee, at 97,358 miles. Had been losing coolant since approx. 70,000 mi. But, no one could find a leak. Since reportedly there are thousands of identical complaints for this model year with casting no. 0331, I feel that chrysler corporation bears responsibility for the replacement cost of $2059.44.

Filed Dec 17, 2008 · Electrical, Engine · 159,600 miles · NV

Low oil pressure: I change my oil as specified in manual. Now all of a sudden I have a drop in oil pressure. When driving the jeep my oil pressure is now at no more than 25psi and it drops to zero when idle. On my last oil change I had the engine checked and there were no cracks and no misfire. I had a tune up done on the vehicle in sept 2008. Engine and everything was running fine. As for that day I have to get the jeep to mechanic to take a look. This past summer the jeep also would over heat in 90 degree weather and it mostly happened when the AC was turned on. Took it mechanic and couldn't find anything wrong we replaced the thermostat with a lower temp and seemed to fix the problem. Then about 2 days later the jeep started to overheat again. Replaced the relay as it tested bad. While replacing the relay the fan broke. The blades completely separated from the fan motor in a whole piece. Replaced fan. Never thought I had any coolant leaks and never found any but the coolant will not stay in the reservoir. It just disappears. I had the engine inspected again and no cracks and the oil appeared to be fine. There are thousands of complaints for this what is going to be done? Anything? It's not like I can afford anew car or thousands in parts and labor. Also have other issues I well 1st another complaint for the electrical issues.

Filed Oct 3, 2008 · Engine · 100,000 miles · OH

1. Vehicle overheating and very low oil pressure 2. Found cracked cylinder head between cylinders 3 and 4 causing coolant to enter crankcase and contaminate oil. Thus ruining engine bearings. 3. Replacement of cylinder head with earlier model design and new bearings in engine.

Filed Aug 20, 2008 · Brakes, Engine · MO

Bought vehicle new and performed regular maintenance. Had to replace brake rotors at 62,000. At 78,000 miles engine overheated; verified fan, radiator, and water pump in working order and replaced thermostat and temperature sensor. Engine continued to overheat with unexplained coolant loss. No leakage and clean oil. Replaced head gasket anyway and noticed no cracks in head. Still runs hot and loses coolant somehow. At 80,000 miles engine developed miss after replacing coil and checking fuel and firing systems removed head again and pulled lifters. Bottom of one lifter was ground off resulting in some wear of cam lobe. Replaced lifters and valve springs. Fixed engine miss. At 82,000 miles oil gauge showed 80 pounds of oil pressure until engine totally warm then dropped to 40 lbs. Also showed 40 lbs when keyed moved to on position with engine not running. Replaced oil pressure sending unit. Now engine runs 40-45 lbs when cold and drops to 10 lbs when running after totally warm. When stopping at lights after driving with warm engine, oil pressure drops to 0 and check gauges light comes on. Purchased a high volume oil pump and will see if this corrects that problem. This is totally unacceptable for a vehicle with 83,000 miles that was purchased new and well maintained. Furthermore when checking with other owners these problems and more seem to be common for this year/model.

Filed Apr 13, 2008 · Engine · 66,000 miles · MA

2000 jeep cherokee..4.0..6 cylinder in-line motor. 77,000 miles serviced as instructed since new. Brought jeep to premier jeep sandwich ma and was told I had a cracked cylinder head. Cost to repair $3,200. ( w/ water pump & thermostat). Jeep has never overheated. There was no warning-the car was running fine. Googled this motor and was overwhelmed with identical problems -50 on one site...all were 2000 jeep 4.0 6cyl motors.

Filed Mar 31, 2008 · Engine · NJ

I own a 2000 jeep grand cherokee 4x4 it has 116,000 miles on it. I have a problem with my fan just stopping and the engine overheating. I have a the fan relay replaced 3 times in the last 3 years and the fan replaced one time. I did not receive and recall on this matter.