Overheating on Hill, Need Help?
Posting Guru
Joined: Oct 2007
Posts: 2,225
Likes: 1
From: Farmington, Minnesota
299K, Waiting to turn into a new truck at the 300k mark! I suspect the clutch is bad, it didn't appear to be turning very fast the last time it got hot, plus one of the blades has a crack in it, so I should probably replace both fan and clutch. Is there a HD Clutch for these? Whats the thoughts of the 203 thermostat?
I run the 203° stat with no noticable difference. If you choose the 203 I would get the billet housing also. The stock one is prone to leak after removal and replacement.
New clutch, fan and stat with housing and you should be set.
Gone, but not forgotten
Joined: Oct 2005
Posts: 5,026
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From: Charlotte-Fairbanks-Bflo
Then if it's your baby get that damned water replaced in the morning and spring for a new fan. I think the clutch cost me 50ish but don't really remember. To bad you aren't in Charlotte cuz I have a pal who's parts manager at one of the stealership's here cuz that fan may be a stealership item. I don't know.
Gone, but not forgotten
Joined: Oct 2005
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From: Charlotte-Fairbanks-Bflo
Fully agree, but he said he pulled it because of an already exsisting overheating problem. It's probably not a good idea on a hard working truck. But back in the antique days we did it for a reason. I would never remove it from my truck unless I knew for sure it was stuck shut and had no other options at the time.
Of the next Riffraff East
Joined: Oct 2004
Posts: 8,679
Likes: 2
From: Concord NC
How hot did it get?
Gone, but not forgotten
Joined: Oct 2005
Posts: 5,026
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From: Charlotte-Fairbanks-Bflo
Damn, I missed this one, thanx ZX. Just the opposite is true. In a cold climate and no thermostat you'll freeze your fanny off in a hurry.
Post Fiend
Joined: Jun 2006
Posts: 9,714
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From: White Mnt's,New Hampshire
this is true to a point..once it starts to heat up..it keeps climbing....on an empty tuck is one thing..but pulling a load..no way in hell id do it...i dont have 10k to spend.....the t stat could have been the problem to begin with...pulling it helped till he had to work the truck....he lost coolent cause it got hot and pushed it out....i would put in a new stat and do a couple pulls close to home then go from there....
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Fleet Owner
Joined: Jun 2004
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From: Rio Rico, AZ.
Click on the link below for the picture.
You absolutely must have that thermostat installed for the engine to recieve proper cooling circulation.
That flare at the bottom of the 'stat redirects the coolant so that when the engine is hot all the coolant flows through the radiator. Without that little valve at the bottom a large percentage of the hot coolant goes right back to the engine and gets heated up even more.
Put that 'stat back in!!!!
DIESELSITE 203* Thermostat
You absolutely must have that thermostat installed for the engine to recieve proper cooling circulation.
That flare at the bottom of the 'stat redirects the coolant so that when the engine is hot all the coolant flows through the radiator. Without that little valve at the bottom a large percentage of the hot coolant goes right back to the engine and gets heated up even more.
Put that 'stat back in!!!!
DIESELSITE 203* Thermostat
Post Fiend
Joined: Jun 2006
Posts: 9,714
Likes: 2
From: White Mnt's,New Hampshire
Click on the link below for the picture.
You absolutely must have that thermostat installed for the engine to recieve proper cooling circulation.
That flare at the bottom of the 'stat redirects the coolant so that when the engine is hot all the coolant flows through the radiator. Without that little valve at the bottom a large percentage of the hot coolant goes right back to the engine and gets heated up even more.
Put that 'stat back in!!!!
DIESELSITE 203* Thermostat
You absolutely must have that thermostat installed for the engine to recieve proper cooling circulation.
That flare at the bottom of the 'stat redirects the coolant so that when the engine is hot all the coolant flows through the radiator. Without that little valve at the bottom a large percentage of the hot coolant goes right back to the engine and gets heated up even more.
Put that 'stat back in!!!!
DIESELSITE 203* Thermostat
thanks Dan..thats just what i was looking for....
Of the next Riffraff East
Joined: Oct 2004
Posts: 8,679
Likes: 2
From: Concord NC
this is true to a point..once it starts to heat up..it keeps climbing....on an emty tuck is one thing..but pulling a load..no way in hell id do it...i dont have 10k to spend.....the t stat could have been the problem to begin with...pulling it helped till he had to work the truck....he lost coolent cause it got hot and pushed it out....i would put in a new stat and do a couple pulls close to home then go from there....
Post Fiend
Joined: Jun 2006
Posts: 9,714
Likes: 2
From: White Mnt's,New Hampshire
i new what you meant..and Mark is right..no stat in the winter = frozzen ride to work...but felt he should know the after affects when it does get hot..but Dan said it much better then i did..
Thread Starter
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Senior User
Joined: Sep 2007
Posts: 271
Likes: 1
From: Roberta, GA
Yes. I was trying to say that running with no thermostat would cause it to warm up slower. I did pull the stat, alongside the road when it overheated, it was stuck completely shut. I think I may have a pin hole in the heater core, I am going to just bypass the heater core, good for the summer anyway, and put a new 203 thermostat and billet housing on and see what happens. Thanks for all the advice!
