2000 WJ cooling problems
I just picked up a 2000 Grand Cherokee Limited 4.7 Power Tech V8, with appx 171,000 miles today for $800.
Previous owner had it listed on Craigslist saying it possibly had a bad head gasket but he didn't seem too sure about it. The vehicle started right up, ran great, and was running at 230 degrees on the temp gauge after it warmed up for a few mins. I had checked the dipstick, oil looked fine, no bubbles or discoloration, smelled normal.
While it was sitting idling, there was no smoke from the exhaust, but whenever I would rev the engine there would be some bluish smoke coming out, but it didn't smell like coolant, more like oil. Took it on a test drive, and everything seemed fine aside from the occasional smoke when I was taking off from a stop.
I bought the jeep and drove it home, only about a 4 mile drive. Still only running at 230. A few hours later I took it out for a quick drive to the gas station when the temp gauge jumped up to max, and within a mile I had steam coming from under the hood and coolant everywhere and on the windshield. I pulled right off the road and shut it off, let it sit and cool with the hood open for about 20 mins. I drove about a quarter mile back to my house and found that the radiator had broken off on the top drivers side corner right at the coolant hose fitting.
So obviously I'll need a new radiator, but I'm not seeing any sort of leaks or coolant around the cylinder heads. I'm stuck, I don't know if I should have the heads checked too, or just replace the radiator and hope that fixes my temp problem. Any advice would be appreciated.