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Unread 07-22-2014, 10:05 AM   #1
Registered User
1999 TJ Wrangler 
Join Date: Jul 2007
Location: Las Vegas, NV
Posts: 558
2003 KJ Overheating

Hey guys, 2003 Liberty with 165,000 and a 6cyl. Last November I noticed some major overheating while taking a trip from Vegas to Phoenix (decent mountain traveling through the desert). I was able to solve the problem temporarily with some added coolant and a decent break from the road. Well, that problem has only gotten worse.

I have flushed the coolant, replaced the thermostat and the temp sensor. When I replacing the thermostat, I went to unplug the bottom of the radiator to drain it and nothing came out. Then, when I detached the big tube that the thermostat sits in, a bunch of fluid poured out. I thought it might have been a gunked up thermostat, but now I'm wondering if it is, in fact, a gunked up radiator. It still has the original radiator, and I live in Vegas, so I wouldn't be surprised if it's in need of a new one.

Before I do that, however, I want make sure it's not the electrical fan. So, how can I confirm that it's either the fan or the radiator? Should I just replace them both? Thanks in advance!


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Danegerous is offline   Reply With Quote
Unread 07-22-2014, 10:08 AM   #2
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2004 KJ Liberty 
Join Date: Dec 2007
Location: tennessee
Posts: 54
Pop the hood. Start your jeep. Wait and see if the fan kicks on. Shouldn't take more than about ten minutes.
dadoftwo is offline   Reply With Quote

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