2000 Jeep Cherokee Engine Problems

“I love my Jeep. However, I have the same problem many owners of the 2000 Cherokee with the 4.0 have. I have a cracked cylinder head. No oil in coolant, or vice versa, buit Jeep is parked and will not move until it is either sold or scrapped. Body is in good condition and everything works on the Jeep. I have rod knock on start up, and as the engine warms, oil pressure drops to zero. Revving engine to 2000 RPM raises oil pressure. The Jeep has 181,000 miles. …”

“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. …”

“We just bought the car 2 months ago. When we get to a speed of 60 or over if we hit a bump in the road it starts to shake. We have to come to a complete stop before it will quite. It happened 4 times in a matter of 15 miles. We took it to a repair shop and they said there was nothing they can do to help us. That it happens with all jeeps. We took it to two other shops and they could not help us. The person we bought it from only had it a year. He told us there was no problem. We do not believe him. But now what do we do.? I believe that is why there was such low mileage on the car. …”

“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.”

“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.”