Question about Mazda MX-5 Miata

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Temp gauge intermittently indicates overheating problem particularly in 6th gear at highway speeds, low rpm. problem seems to correct itself after a minute or two and temp gauge returns to normal. Coolant level is fine. Problem occurs regardless of outside temperture. 2004 model with approx 75,000 miles.

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  • bcashman Nov 09, 2008

    My tep gauge starts out ok, but after a bit of 40-50mph driving it tends to start going up at lower speeds. I can see it drop when the thermostat opens, but over time it slowly climbs higher. Level is fine and I see no sign of leaks. I will check to see if the last thermostat I got is stock (dual valve). Is there anything else I can do?

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Replace the temperture sensor.

Posted on Oct 15, 2008

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