jimoshel Posted May 20, 2011 Share Posted May 20, 2011 Had an interesting morning. Went to town and on the way back the MJ overheated. Never had a bit of trouble with it before. Took 4 stops to let it cool down and an hour longer to get home. Had coolant in reservoir so it wasn't low. The engine and upper radiator hose were to hot to touch. The radiator and lower hose wasn't even warm. Waiting for it to cool down now and then will check it out. Stay tuned for more of this interesting saga, or just change channels. :( Link to comment Share on other sites More sharing options...
mkbruin Posted May 20, 2011 Share Posted May 20, 2011 Based on that description, I would guess its just a t-stat that got stuck closed. Although, its never a bad idea to go through the whole system if you're breaking into it. 1) 2 or 3 core radiator ($130-200, depending on sales) 2) water pump. $30. Also take the time to replace the most-likely corroded metal output. 3) Coolant overflow tank (if staying closed-system). Runs ~$12, comes with a new cap. Or, its pretty easy to swap to an open system, especially if you are going through the swap process. Of course, you can also probably get by with a $3 t-stat and $10 worth of coolant. Watch out for those air bubbles though. My old 89, I would *think* about driving up to the mountains and it would overheat. A GDI 3-core solved ALL my issues. Pre-3core, frequent trail stops. Link to comment Share on other sites More sharing options...
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