Hello all. First post here, and hoping to get some advice. I've got a 2000 Cherokee sport with 190,000 miles on it. Had some overheating issues in the past due to a leaky radiator. I've replaced the radiator and hoses, but still losing coolant. Did block test today that gave me green fluid which is positive for a leak. My question is, how should I go about identifying where the leak is? The head was replaced by the previous owner with a head from a 2001 Cherokee (claims they are less susceptible to cracks; he is a jeep mechanic). Is pulling the head my only option here? Thanks.

 

the 2000 and 2001 cherokee heads are the exact sine thing. Both have the casting flaw....if he replaced it from a cherokee xj, all he did was but the same defected head in again. The head is probably cracked if so.

 

^^ yep, 2000 &2001 used the same head with a design flaw....I think a pressure test will be the next step...just curious, how does your oil look? You might want to get an oil analysis--blackstone-labs or another oil analysis company. Testing the oil will give a clue if it's worth fixing. ...and if it were me I wouldn't use the previous owner for a mechanic

https://www.blackstone-labs.com/