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1994.5 - 1997 7.3L Power Stroke Diesel  

203 thermostat

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Old Mar 22, 2013 | 07:15 PM
  #1  
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203 thermostat

Ok guys iv did some searches but not to satisfied with what I come up with I'm wanting some more heat in winter. You guys that are running them or have ran one what are your thoughts about one my trucks a 96 thanks
 
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Old Mar 22, 2013 | 10:33 PM
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I don't visit this site as much as I used to. Pages slow to load, older PC. What do you want to know?

I contacted DieselSite awhile back. I purchased a 203*F T-Stat and new housing from them. I am completly happy with this upgrade. Heater/defroster temps are MUCH warmer. Highly recommended.

I am currently running without the cooling fan and shroud. No overheating symptoms as of today. Outside temps are still on the cool side. I live in Idaho. I'm keeping my fingers crossed as summer approaches.
 
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Old Mar 23, 2013 | 08:03 AM
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Originally Posted by IDMooseMan
I don't visit this site as much as I used to. Pages slow to load, older PC. What do you want to know?

I contacted DieselSite awhile back. I purchased a 203*F T-Stat and new housing from them. I am completly happy with this upgrade. Heater/defroster temps are MUCH warmer. Highly recommended.

I am currently running without the cooling fan and shroud. No overheating symptoms as of today. Outside temps are still on the cool side. I live in Idaho. I'm keeping my fingers crossed as summer approaches.
That's what I am curious about is over heating in the heat of summer and while pulling
 
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Old Mar 23, 2013 | 09:24 AM
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Originally Posted by baker1983
That's what I am curious about is over heating in the heat of summer and while pulling
a properly working 203 thermostat won't make your truck overheat.
it will simply be fully open at 203 degrees where the stock is fully open at 180. once the thermostat is fully open it is only letting the coolant flow, whether or not your truck overheats is dependent on how hard it is working and the condition of your cooling system components.
 
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Old Mar 23, 2013 | 12:20 PM
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I had had one in mine. I live in Louisiana where temps are 95* and 100% humidity and I never had a issue towing 12-15k
 
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Old Mar 23, 2013 | 04:02 PM
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I've ran them in a few trucks and never had a problem. I'd do it again. I'd order a neck with it though, just incase
 
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Old Mar 23, 2013 | 05:30 PM
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I have no issues with a 203 and no fan.

Even when I was hauling heavy. Wasn't long long distances, but I never seen above average temperatures.
 
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Old Mar 23, 2013 | 07:27 PM
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I have one in mine, works good, but at the same time do you know if your t-stat is even working or just stuck open? If your t-stat has failed and is just stuck open even a new stock one would be a great upgrade. either way i figured for only a few more bucks than what a stock one costs i figured it was worth a shot and seems to run good!
 
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Old Mar 23, 2013 | 07:39 PM
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Thanks guys my neck is new and I have a stainless ring on it to help seal the neck so I should be ok just changing the stat and o ring I think I will give it a shot
 
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