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Jeep Wrangler YJ
YJ General Discussion
2.5 running warm at driving speeds
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<blockquote data-quote="Gary747" data-source="post: 428326" data-attributes="member: 19207"><p>If you're happy, then no problem, but I think surface temps lag internal temps I would troubleshoot a little more. What is the condition of the coolant temp sensor? You can test it with an Ohm-Meter, but I like to immerse it in a cup of boiling water to verify the sensor and the gauge. How old and what temp range thermostat is installed? 195°F? If you remove the thermostat, you can place in one of your wive's cooking pans on the stove and observe the water temp when the valve starts to open. Also, what brand coolant do you use? Mix ratio? Any chance a section of the radiator exterior is clogged with mud/debris? That one got me once.</p></blockquote><p></p>
[QUOTE="Gary747, post: 428326, member: 19207"] If you're happy, then no problem, but I think surface temps lag internal temps I would troubleshoot a little more. What is the condition of the coolant temp sensor? You can test it with an Ohm-Meter, but I like to immerse it in a cup of boiling water to verify the sensor and the gauge. How old and what temp range thermostat is installed? 195°F? If you remove the thermostat, you can place in one of your wive's cooking pans on the stove and observe the water temp when the valve starts to open. Also, what brand coolant do you use? Mix ratio? Any chance a section of the radiator exterior is clogged with mud/debris? That one got me once. [/QUOTE]
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Jeep Wrangler YJ
YJ General Discussion
2.5 running warm at driving speeds
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