Thermostat stuck open? - Ford Powerstroke Diesel Forum

 
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post #1 of 10 Old 01-14-2013, 04:40 PM Thread Starter
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Thermostat stuck open?

Hey guys, I've got another work truck that I'm driving home tonight with the scanner hooked up to it the current outside temperature is about 48° I've been driving this for about a half an hour down the freeway the warmest it has gotten up to is 165° thought I saw another thread about this but can't find it. Sound like a stuck open thermostat to you guys?Thermostat stuck open?-imageuploadedbyautoguide1358214017.304384.jpg


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post #2 of 10 Old 01-14-2013, 04:41 PM
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Yes your thermostat is stuck open.

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post #3 of 10 Old 01-14-2013, 04:43 PM
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I second that diagnosis.

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post #4 of 10 Old 01-14-2013, 05:30 PM Thread Starter
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That's what I thought too, thanks guys.


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post #5 of 10 Old 01-15-2013, 06:20 PM
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I'm guessing someone gutted his thermostat. lol

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post #6 of 10 Old 01-15-2013, 09:47 PM
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Nah, Ford thermostats usually fail open.


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post #7 of 10 Old 01-16-2013, 06:12 PM
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Mine did the same thing

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post #8 of 10 Old 01-19-2013, 04:03 AM
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Re: Thermostat stuck open?

Quote:
Originally Posted by southend View Post
I'm guessing someone gutted his thermostat. lol
I took a gutted one out of a truck yesterday. I don't undersatnd why people do this, the t-stats fail to the open position. The one that I had even had good deltas AND heat with a new t-stat.

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post #9 of 10 Old 01-22-2013, 07:24 PM Thread Starter
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Thermostat stuck open?

Fail to the open position is better than the alternative.


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post #10 of 10 Old 01-23-2013, 06:31 PM
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This happened to me at about 125K and now again 2 days ago at 247K it just did it again. I will replace it Saturday!

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