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Jeep Wrangler JK
JK General Discussion
2015 Jeep Wrangler Overheating Issue
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<blockquote data-quote="Anybodyhome" data-source="post: 457188" data-attributes="member: 19161"><p>Not feeling coolant flow thru the bottom hose is not the sign of a head gasket going bad. The engine starts and the water pump starts along with everything else. If no coolant is flowing when the engine starts, there is either air in the loop or the water pump is going bad.</p><p></p><p>The coolant isn't "boiling," it's actually the air bubbles in the system for one of 2 reasons: either it's not been thoroughly burped or, as you suggest, the head gasket could be going. A bad head gasket will allow the pressurized air in the cylinder heads to transfer to the cooling system- forcing air into the cooling loop.</p><p></p><p>Next step for me would be a pressure test. Is there a reliable radiator shop or a trusted mechanic nearby? It doesn't take very long and is relatively easy test to perform.</p></blockquote><p></p>
[QUOTE="Anybodyhome, post: 457188, member: 19161"] Not feeling coolant flow thru the bottom hose is not the sign of a head gasket going bad. The engine starts and the water pump starts along with everything else. If no coolant is flowing when the engine starts, there is either air in the loop or the water pump is going bad. The coolant isn't "boiling," it's actually the air bubbles in the system for one of 2 reasons: either it's not been thoroughly burped or, as you suggest, the head gasket could be going. A bad head gasket will allow the pressurized air in the cylinder heads to transfer to the cooling system- forcing air into the cooling loop. Next step for me would be a pressure test. Is there a reliable radiator shop or a trusted mechanic nearby? It doesn't take very long and is relatively easy test to perform. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
2015 Jeep Wrangler Overheating Issue
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