Thermastat replacement help
Tuned
Joined: Jan 2008
Posts: 294
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From: Kamloops, BC. Canada
j
More Turbo
Joined: Dec 2016
Posts: 538
Likes: 42
From: Southwest Missouri
I figured that would work. Thats good news. As far as hardware goes, any hardware store probably has the right size, just bring at least one if the old ones with you to check. As ithers have mentioned on here, you cant just throw any thermostat in there. I actually just bought the same one dieselsite sells, the 203 long stem for my 97, but from a different place. From what I have read through, you need the long stem one if yours is a 96+ because of the coolant bypass valve. I have read that if you put a short stem thermostat in it will still work but temps can get super high in the cylinders in the back of engine and you won't know it.
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Junior User
Joined: Nov 2016
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I figured that would work. Thats good news. As far as hardware goes, any hardware store probably has the right size, just bring at least one if the old ones with you to check. As ithers have mentioned on here, you cant just throw any thermostat in there. I actually just bought the same one dieselsite sells, the 203 long stem for my 97, but from a different place. From what I have read through, you need the long stem one if yours is a 96+ because of the coolant bypass valve. I have read that if you put a short stem thermostat in it will still work but temps can get super high in the cylinders in the back of engine and you won't know it.
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Joined: Sep 2003
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From: North East Ohio
There may be some flexibility in the dummy gauge on the dash, but I've been there, done that. If it's not in the "R" range, the stat is bad.
I had a truck years ago (the one I mentioned previously) that I covered 3/4 of the radiator with cardboard to try and get some heat out of it in the winter. It still wouldn't heat up. Only when I installed a new stat would the truck reach operating temps.
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'96 7.3 F-350 Reg Cab 4x4 - bought new.
'04 6.0 E-350 custom 4x4
'08 6.4 F-550 Reg Cab 6 spd 4x4
'17 6.7 F-250 KR ccsb 4x4
'96 7.3 F-350 Reg Cab 4x4 - bought new.
'04 6.0 E-350 custom 4x4
'08 6.4 F-550 Reg Cab 6 spd 4x4
'17 6.7 F-250 KR ccsb 4x4
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