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thermostat stuck open?

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Old 07-16-2011, 04:22 PM
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thermostat stuck open?

i was pulling a trailer with some topsoil today and notice when i take off my Engine temp drops to C and even when im drinving down the highway it stays below normal.. does that sound like a stuck open stat?? i live in Texas so the temp aroung here is about 90
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Old 07-16-2011, 04:27 PM
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Maybe a bad temperature sensor also.
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Old 07-16-2011, 05:11 PM
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Unplug the temp. sensor and see what the temp. gauge says. Then ground the lead, the gauge should go the other way full swing. If so, replace the t-stat. That's the way we used to test them anyway.
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Old 07-16-2011, 06:54 PM
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What gauges do you have? Or are you using the in dash idiot gauge to see the coolant temp?
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2008, 352, 65, 97, closed, delete, egr, explorer, f100, ford, open, ranger, size, stuck, thermostat, tx

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