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Jeep Wrangler JK
JK General Discussion
Need cooling system help please
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<blockquote data-quote="MacGuyver" data-source="post: 442809" data-attributes="member: 18877"><p>It's a bit difficult to parse all the information you have there in your wall of text. One point though, if half of your 54k is in low gear you effectively have 100k on the vehicle. Though my 2009 rubicon just rolled over 200k, these are long lasting engines, with quirks.</p><p></p><p>So is the heater working? It is almost impossible to burp the heater core on flat ground for these. The front has needed to be elevated when I've done it. The overflow will only work if the main system is pretty close to the top, so you may have air in there and never gotten it out. </p><p></p><p>From factory there isn't a gasket around were you put the thermostat. I added a crush one here and my system started working </p><p>better. I was getting a very slow leak that would drip onto the block and evaporate. Took a couple years to finally find where my coolant was going. I think it's the reason that these models can have a coolant smell when you walk by the front after shutting off. </p><p></p><p>Have you flushed the heater core? What version of coolant have you topped it off with? Did you use the right stuff? I stopped getting anything but universal because I don't want to play the jelly in my coolant system game. </p><p></p><p>Either the stick did more damage than you think, or perhaps an ECU reset could make the system relearn when to turn on the fan. Though the system not getting hot enough for the fan... thermostat.. just sayin'. I've never had a fan problem, just an occasional over achieving fan when my coolant was low before I finally found my problem.</p></blockquote><p></p>
[QUOTE="MacGuyver, post: 442809, member: 18877"] It's a bit difficult to parse all the information you have there in your wall of text. One point though, if half of your 54k is in low gear you effectively have 100k on the vehicle. Though my 2009 rubicon just rolled over 200k, these are long lasting engines, with quirks. So is the heater working? It is almost impossible to burp the heater core on flat ground for these. The front has needed to be elevated when I've done it. The overflow will only work if the main system is pretty close to the top, so you may have air in there and never gotten it out. From factory there isn't a gasket around were you put the thermostat. I added a crush one here and my system started working better. I was getting a very slow leak that would drip onto the block and evaporate. Took a couple years to finally find where my coolant was going. I think it's the reason that these models can have a coolant smell when you walk by the front after shutting off. Have you flushed the heater core? What version of coolant have you topped it off with? Did you use the right stuff? I stopped getting anything but universal because I don't want to play the jelly in my coolant system game. Either the stick did more damage than you think, or perhaps an ECU reset could make the system relearn when to turn on the fan. Though the system not getting hot enough for the fan... thermostat.. just sayin'. I've never had a fan problem, just an occasional over achieving fan when my coolant was low before I finally found my problem. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Need cooling system help please
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