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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="Dirty Dog" data-source="post: 459924" data-attributes="member: 24042"><p>There is no such thing as an OEM Jeep thermostat. They just buy them, stick them in their box, and charge you for the name.</p><p>Most of these problems end up being a failure to properly burp the engine. Run the front end up on something. Ramps, jack stands, one of those concrete wheel stops in the parking lot... Just make sure the radiator cap is the highest point in the system. Pop the cap off the radiator (let it cool first, obviously). Start it up and let it idle. Turn the heater on hot, so the heater core gets burped. Top off the fluids. I keep doing this till it's stopped bubbling, and the fan has cycled 3-4 times (minimum). </p><p></p><p>The other common culprit is the fan. So the above procedure also ensures that it's actually cycling.</p></blockquote><p></p>
[QUOTE="Dirty Dog, post: 459924, member: 24042"] There is no such thing as an OEM Jeep thermostat. They just buy them, stick them in their box, and charge you for the name. Most of these problems end up being a failure to properly burp the engine. Run the front end up on something. Ramps, jack stands, one of those concrete wheel stops in the parking lot... Just make sure the radiator cap is the highest point in the system. Pop the cap off the radiator (let it cool first, obviously). Start it up and let it idle. Turn the heater on hot, so the heater core gets burped. Top off the fluids. I keep doing this till it's stopped bubbling, and the fan has cycled 3-4 times (minimum). The other common culprit is the fan. So the above procedure also ensures that it's actually cycling. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Help needed: Jeep suddenly overheating after changing the thermostat
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