One problem related to radiator has been reported for the 2004 Jeep Wrangler. The most recently reported issues are listed below.
While trying to use the ac on my 2004 Jeep Wrangler , it was overheating. I took to a dealership service dept. They said it was the clutch fan. Replaced under warranty and told me it worked fine after being test driven and verified. I drove the next day,could not use the air because as soon as the motor warmed up it overheated to 260. I shut it down and had it towed back to same dealership(3rd time). Told them to check thermostat waterpump etcc. . Explained that I can't even drive it now for overheating. Three and half hours later they said it is a radiator restriction and I am 32 nd on a list because apparently there has been quite a problem with the radiator on the Jeep Wrangler but no recalls. They also say they don't know if it is covered under warranty. I have had it less than a year and only has 24000 miles on it. The warranty is 3/yr/36000 I believe. Am checking on htis. Has anyone else reported this problem?.