Did you get an Engine Icon Light warning on your dash? My coolant goes down slightly and I get the warning there. I add distilled water at the overflow tank. Could the core of the heater be leaking?
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| Weird heater issue on KJ http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=1&t=87427 |
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| Author: | ekj [ Mon Nov 13, 2017 10:41 pm ] |
| Post subject: | Weird heater issue on KJ |
Learn from my stupid mistake. With the temperature control turned to the hottest setting possible, my blower would push hot air in positions 1, 2, and 3 when driving. When turned to 4, or when idling, regardless of blower setting, it would blow cold air. Such weird symptoms. Turns out I was very low on coolant. I noticed that last week when I changed my oil, but since it wasn't overheating, it was on my to-do list, but not a high priority. It took over two quarts of coolant when I filled tonight. Tested it immediately thereafter, and hot air blows regardless of blower setting or driving or idling. Posting in case anyone runs into a similar problem. |
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| Author: | tjkj2002 [ Tue Nov 14, 2017 6:58 am ] |
| Post subject: | Re: Weird heater issue on KJ |
Now you need to find the coolant leak,most likely a cracked radiator side tank(drivers side behind rubber flap is most common area). You just don't loose coolant for no reason since '02-'06 KJ's use a 100% sealed system. |
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| Author: | ekj [ Wed Nov 15, 2017 10:41 pm ] |
| Post subject: | Re: Weird heater issue on KJ |
I have not noticed any leaks, but interestingly enough, I got my oil analysis back today, and they found a high sodium content. They suspect this is due to coolant leak in the engine since Mobil1 doesn't use sodium as an additive. |
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| Author: | Liberty for All [ Sun Dec 17, 2017 7:38 pm ] |
| Post subject: | Re: Weird heater issue on KJ |
Did you get an Engine Icon Light warning on your dash? My coolant goes down slightly and I get the warning there. I add distilled water at the overflow tank. Could the core of the heater be leaking?
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