Thermastat replacement help
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Junior User
Joined: Nov 2016
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Thermastat replacement help
I can not get the thermastat to come out of the housing...wtf...i tried prying the **** out of it but its so stuck. Ive never had an issue like this begore furing thermastat replacement. How do i get the dam thing to come out?
More Turbo
Joined: Dec 2016
Posts: 538
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From: Southwest Missouri
You could try taking a flat head screw driver and putting the tip up againt the side of it at some point at an angle but not too much or it will slip off. Then, tap it with a hammer or mallet lightly and see if trying to turn it will unseat it. Not sure how fragile these thermostats on these trucks are, but I have done it on another car once and it worked. I wouldn't hit it too hard though, but just try it repeatedly and see if it budges.
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yeah the PO used it as a farm truck and plow truck. They waited until everything needed replacing and/or was worn out before selling it. I got the crap end of the stick. All my grhickes are maintsined properly. I drained and flushed the cooling system. Lastly now changing the stat due to it not maintaining operating temp. If this dont solve the issue ill change the temp sensor too. Where is the temp sensor located? On the therms housing?
Post Fiend
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From: Livoina,La
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Junior User
Joined: Nov 2016
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You could try taking a flat head screw driver and putting the tip up againt the side of it at some point at an angle but not too much or it will slip off. Then, tap it with a hammer or mallet lightly and see if trying to turn it will unseat it. Not sure how fragile these thermostats on these trucks are, but I have done it on another car once and it worked. I wouldn't hit it too hard though, but just try it repeatedly and see if it budges.
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More Turbo
Joined: Jul 2016
Posts: 546
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From: Boston
I'm sure you do but I just wanted to make sure you got the right thermostat as I think most places sell you one but it isn't the right one.
"Copied from diesel site"
Until 1996, all 7.3L Powerstrokes that were manufactured used an International water pump and an International short stem 203° thermostat . In 1996, Ford changed to a lower degree 195° thermostat. They changed water pump designs at this time as well. The new pumps required the new long stem 195° thermostat in place of the short stem to properly seat the bypass disk. All 1996-2003 Ford PSD's now come equipped with a long stem 195° thermostat. Recently the factory replacement thermostat available at the parts counter changed to 192°. Our Dieselsite 203° uses the correctly sized t-stat with the correct temperature spring so that we no longer have to give up the benefits of running our vehicles where they were meant to run.
http://www.dieselsite.com/dieselsite203thermostat.aspx
"Copied from diesel site"
Until 1996, all 7.3L Powerstrokes that were manufactured used an International water pump and an International short stem 203° thermostat . In 1996, Ford changed to a lower degree 195° thermostat. They changed water pump designs at this time as well. The new pumps required the new long stem 195° thermostat in place of the short stem to properly seat the bypass disk. All 1996-2003 Ford PSD's now come equipped with a long stem 195° thermostat. Recently the factory replacement thermostat available at the parts counter changed to 192°. Our Dieselsite 203° uses the correctly sized t-stat with the correct temperature spring so that we no longer have to give up the benefits of running our vehicles where they were meant to run.
http://www.dieselsite.com/dieselsite203thermostat.aspx
Hotshot
Joined: Dec 2005
Posts: 10,247
Likes: 7,666
From: Chino Valley, Arizona
I'm sure you do but I just wanted to make sure you got the right thermostat as I think most places sell you one but it isn't the right one.
"Copied from diesel site"
Until 1996, all 7.3L Powerstrokes that were manufactured used an International water pump and an International short stem 203° thermostat . In 1996, Ford changed to a lower degree 195° thermostat. They changed water pump designs at this time as well. The new pumps required the new long stem 195° thermostat in place of the short stem to properly seat the bypass disk. All 1996-2003 Ford PSD's now come equipped with a long stem 195° thermostat. Recently the factory replacement thermostat available at the parts counter changed to 192°. Our Dieselsite 203° uses the correctly sized t-stat with the correct temperature spring so that we no longer have to give up the benefits of running our vehicles where they were meant to run.
http://www.dieselsite.com/dieselsite203thermostat.aspx
"Copied from diesel site"
Until 1996, all 7.3L Powerstrokes that were manufactured used an International water pump and an International short stem 203° thermostat . In 1996, Ford changed to a lower degree 195° thermostat. They changed water pump designs at this time as well. The new pumps required the new long stem 195° thermostat in place of the short stem to properly seat the bypass disk. All 1996-2003 Ford PSD's now come equipped with a long stem 195° thermostat. Recently the factory replacement thermostat available at the parts counter changed to 192°. Our Dieselsite 203° uses the correctly sized t-stat with the correct temperature spring so that we no longer have to give up the benefits of running our vehicles where they were meant to run.
http://www.dieselsite.com/dieselsite203thermostat.aspx
PREMIUM SPONSOR
Joined: Sep 2003
Posts: 2,630
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From: North East Ohio
Years ago I had one go bad, replaced with one from Autozone, and that lasted a week. Replaced with one from NAPA, that lasted a week. I finally got one from DieselSite and it lasted for years till I sold the truck.
Keep an eye on your temps, I wouldn't be surprised if it doesn't last long.
Also, I like to use threaded rod to make studs to hold the housing on. Less chance to strip the front cover and/or break a bolt during R&R.
Keep an eye on your temps, I wouldn't be surprised if it doesn't last long.
Also, I like to use threaded rod to make studs to hold the housing on. Less chance to strip the front cover and/or break a bolt during R&R.
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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
Thread Starter
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Junior User
Joined: Nov 2016
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I'm sure you do but I just wanted to make sure you got the right thermostat as I think most places sell you one but it isn't the right one.
"Copied from diesel site"
Until 1996, all 7.3L Powerstrokes that were manufactured used an International water pump and an International short stem 203° thermostat . In 1996, Ford changed to a lower degree 195° thermostat. They changed water pump designs at this time as well. The new pumps required the new long stem 195° thermostat in place of the short stem to properly seat the bypass disk. All 1996-2003 Ford PSD's now come equipped with a long stem 195° thermostat. Recently the factory replacement thermostat available at the parts counter changed to 192°. Our Dieselsite 203° uses the correctly sized t-stat with the correct temperature spring so that we no longer have to give up the benefits of running our vehicles where they were meant to run.
http://www.dieselsite.com/dieselsite203thermostat.aspx
"Copied from diesel site"
Until 1996, all 7.3L Powerstrokes that were manufactured used an International water pump and an International short stem 203° thermostat . In 1996, Ford changed to a lower degree 195° thermostat. They changed water pump designs at this time as well. The new pumps required the new long stem 195° thermostat in place of the short stem to properly seat the bypass disk. All 1996-2003 Ford PSD's now come equipped with a long stem 195° thermostat. Recently the factory replacement thermostat available at the parts counter changed to 192°. Our Dieselsite 203° uses the correctly sized t-stat with the correct temperature spring so that we no longer have to give up the benefits of running our vehicles where they were meant to run.
http://www.dieselsite.com/dieselsite203thermostat.aspx
Could it just be a bad temp sensor?
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Junior User
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i am unsure on the degree range of the thermastat. Autozone said it was the right one though. I still am running colder then i think i should be. The thermostat i put in is one of those safety ones that lock open in an overheat situation.
Could it just be a bad temp sensor?
Could it just be a bad temp sensor?
Last edited by Dezl Newbie; Dec 30, 2016 at 08:24 AM. Reason: Typo
PREMIUM SPONSOR
Joined: Sep 2003
Posts: 2,630
Likes: 217
From: North East Ohio
If that's a new stat from Autozone and it's on the "N", then see my post above.
It should be between the R and M....ish...
It should be between the R and M....ish...
__________________
'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