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Jeep Wrangler JK
JK General Discussion
Engine Code P0128 2017 JK
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<blockquote data-quote="Danarch" data-source="post: 454821" data-attributes="member: 21093"><p>I am with [USER=24042]@Dirty Dog[/USER] on this. I would suspect the thermostat might be staying open which is causing it to take longer than usual to reach operating temperature therefore or not running consistently at the right temperature causing the computer to throw the MIL light on. Check the fluid level including the reservoir bottle and for leaks. If all is good you should be fine. Long term is the engine can build up sludge from from being too cool. I think there is also a possibility of slightly less fuel economy.</p></blockquote><p></p>
[QUOTE="Danarch, post: 454821, member: 21093"] I am with [USER=24042]@Dirty Dog[/USER] on this. I would suspect the thermostat might be staying open which is causing it to take longer than usual to reach operating temperature therefore or not running consistently at the right temperature causing the computer to throw the MIL light on. Check the fluid level including the reservoir bottle and for leaks. If all is good you should be fine. Long term is the engine can build up sludge from from being too cool. I think there is also a possibility of slightly less fuel economy. [/QUOTE]
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Jeep Wrangler JK
JK General Discussion
Engine Code P0128 2017 JK
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