help hot truck
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Elder User
Joined: Jan 2008
Posts: 644
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From: indy
help hot truck
Ok my truck has a new waterpump thermostat oil cooler o rings coolant resovior cap and it is still overheating and the truck runs fine otherwise no coolant in the oil or vise versa what else could it be I'm at wits end here
Hotshot
Joined: Feb 2009
Posts: 10,408
Likes: 75
From: Plankinton, SD
Collapsing hose when warm? Not sure if it would even happen if possible.
Just throwin' out some ideas as I'm not sure. There must be some kind of blockage.
Have you put an actual water temp gauge on it?
Just throwin' out some ideas as I'm not sure. There must be some kind of blockage.
Have you put an actual water temp gauge on it?
Hotshot
Joined: Feb 2009
Posts: 10,408
Likes: 75
From: Plankinton, SD
sure could be that too. Be a lot easier explanation than what I came up with..
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Hotshot
Joined: Oct 2003
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From: Ashland City, TN
It just seems like a lot of people have reported T-stat issues when replacing them with cheepies.
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Lead Driver
Joined: Oct 2003
Posts: 8,476
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From: Madison, WI
Running it without a thermostat will probably cause it to overheat. Remember, it's a "double-throw" thermostat, with two plates/valves. When the passage for the upper rad hose opens, the passage for the bypass closes, allowing full flow through the radiator. With no thermostat at all, both the rad hose passage and the bypass are open, and how much coolant goes thru the rad and how much goes thru the bypass is anybody's guess. In fact, this might be related to your problem at hand. If the thermostat is not the right length, it won't close the bypass correctly and can cause it to run hot.
You say the 'stat is from the dealer; where is the water pump from? Did you compare the place in the water pump where the 'stat sits with your old one?
You say the 'stat is from the dealer; where is the water pump from? Did you compare the place in the water pump where the 'stat sits with your old one?
Lead Driver
Joined: Oct 2003
Posts: 8,476
Likes: 37
From: Madison, WI
Hmm, maybe there's something you can SAFELY stick into the thermostat to jam it open, so when you put it in, it'll close the bypass, and you'll be running in full rad open mode. If it runs cooler that way, then it sounds like a bad 'stat. Just make sure it's something that CAN'T come loose! Just a thought.....
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