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Dodge Master
846 Answers
- Posted on May 17, 2014
Re: Why does car run hot, not all the time but 60% of...
The most common symptom of a failed thermostat is overheating at highway speeds. Your engine may be able to stay cool at low speeds because it's not working that hard, be sure coolant is ok! Good-day! the thermostat is sticking thats what it sounds like to me. its not opening properly.
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