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Jeep Wrangler JK
JK General Discussion
2015 Jeep Wrangler Overheating Issue
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<blockquote data-quote="JamesLaBrada" data-source="post: 457172" data-attributes="member: 24921"><p>I'm having the same issues now. I replaced the thermostat 2 times. Replaced the radiator (the coolant was dirty in the radiator), cleaned out the hoses, replaced with new coolant, and replaced the reservoir tank (the reservoir tank was leaking when the engine was running). I bleed the system using a spill free funnel and with the jeep on an incline. I then take the jeep for a test drive; the engine runs up to 240 <em>most</em> of the coolant runs into the reservoir tank. almost filling it up past the "max" level. The engine runs up to 240 for about a few seconds and then dropped to 208-210 and stayed there the rest of the drive. The next day I noticed the reservoir tank still had the coolant from last night's test drive. I drive the jeep again and it overheats up to 240 and stays there with the radiator fan running loud. </p><p>There is no milky oil and there's no white exhaust smoke, and there are no leaks when its running and when it's not running. </p><p>And the coolant is not boiling in the spill free funnel when I bleed it. Also, the radiator came with a new cap. </p><p></p><p>For the past couple of years, the Jeep would run hot around 215 to 230 on and off but has gotten worse in the past couple of weeks. The first time we replaced the thermostat, we had to replace the radiator fan as well (that was about 2 and half months ago)</p><p></p><p>This Jeep has been in off road parks some and some mud puddles (we stopped driving in mud puddles the 2nd time once we knew how much work we to do to clean it..) It seemed like the radiator fan kicked on more since those mud puddle adventures..</p><p></p><p>Right now, I'm thinking I need to replace the thermostat again, because the thermostat won't open until 215 (its labeled at 203)</p><p>AND why isn't the coolant not going back into the radiator? Why does it stay in the reservoir tank?</p><p></p><p>Please let me know if I'm missing something. Any help is greatly appreciated!</p><p></p><p>2015 Jeep JK Wrangler</p></blockquote><p></p>
[QUOTE="JamesLaBrada, post: 457172, member: 24921"] I'm having the same issues now. I replaced the thermostat 2 times. Replaced the radiator (the coolant was dirty in the radiator), cleaned out the hoses, replaced with new coolant, and replaced the reservoir tank (the reservoir tank was leaking when the engine was running). I bleed the system using a spill free funnel and with the jeep on an incline. I then take the jeep for a test drive; the engine runs up to 240 [I]most[/I] of the coolant runs into the reservoir tank. almost filling it up past the "max" level. The engine runs up to 240 for about a few seconds and then dropped to 208-210 and stayed there the rest of the drive. The next day I noticed the reservoir tank still had the coolant from last night's test drive. I drive the jeep again and it overheats up to 240 and stays there with the radiator fan running loud. There is no milky oil and there's no white exhaust smoke, and there are no leaks when its running and when it's not running. And the coolant is not boiling in the spill free funnel when I bleed it. Also, the radiator came with a new cap. For the past couple of years, the Jeep would run hot around 215 to 230 on and off but has gotten worse in the past couple of weeks. The first time we replaced the thermostat, we had to replace the radiator fan as well (that was about 2 and half months ago) This Jeep has been in off road parks some and some mud puddles (we stopped driving in mud puddles the 2nd time once we knew how much work we to do to clean it..) It seemed like the radiator fan kicked on more since those mud puddle adventures.. Right now, I'm thinking I need to replace the thermostat again, because the thermostat won't open until 215 (its labeled at 203) AND why isn't the coolant not going back into the radiator? Why does it stay in the reservoir tank? Please let me know if I'm missing something. Any help is greatly appreciated! 2015 Jeep JK Wrangler [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
2015 Jeep Wrangler Overheating Issue
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