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Jeep Wrangler JK
JK General Discussion
Help needed: Jeep suddenly overheating after changing the thermostat
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<blockquote data-quote="Anybodyhome" data-source="post: 448138" data-attributes="member: 19161"><p>Typically, if there is air in the system, the temp gauge will move quite a bit, seemingly bouncing from hot to normal and back again. </p><p>As BLACKJKU said, you should let it cool, take the rad cap off and check coolant levels again. Fill the radiator with the front end elevated. What will happen is, you'll pour some in and the rad will bubble and burp. Let the coolant settle and repeat. Putting the coolant in this way forces the air out, but it's only way out is the cap, hence, waiting between pours to let the air out.</p></blockquote><p></p>
[QUOTE="Anybodyhome, post: 448138, member: 19161"] Typically, if there is air in the system, the temp gauge will move quite a bit, seemingly bouncing from hot to normal and back again. As BLACKJKU said, you should let it cool, take the rad cap off and check coolant levels again. Fill the radiator with the front end elevated. What will happen is, you'll pour some in and the rad will bubble and burp. Let the coolant settle and repeat. Putting the coolant in this way forces the air out, but it's only way out is the cap, hence, waiting between pours to let the air out. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Help needed: Jeep suddenly overheating after changing the thermostat
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