HELP NEEDED: Running Hot/Almost - Ford Powerstroke Diesel Forum
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Old 04-26-2011, 02:25 AM
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HELP NEEDED: Running Hot/Almost

I am thinking that I have a Thermostat stuck closed, but I am not sure. Any Ideas would be great.

I was going to work this morning and noticed that I had no heat in the cab. It was a little chilly so I turned it up to find all I had was Cold Air comming from the vents. This was odd to me b/c after 10-15 min of driving there is ususally way too much heat. Then I got to checking the guages. The OE temp guage was a little on the high side and would rise and fall depending on how long I was holding down on the skinny peddle or coasting down the hill. My after market water temp guage on the other hand seemed to be slowly increasing.

I have a 30min. drive into work in the morning and by the time I got there the aux guage was reading about 210 F. I am not the brightest but this is not normal or good.

Got to work and shut the truck down. Nothing smelled Hot or was spilling on the ground, so either I am out of water or I have it and it is just not moving. I was still pretty dark here at 5:30 so I'll have to give it a good checking when I get off at 6.

If anyone has any ideas, please let me know.
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Old 04-26-2011, 07:03 AM
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Scratching my head here....I would think that if the thermostat was stuck closed (as you noted) you would get PLENTY of heat since it isn't circulating to the radiator. That leaves me thinking 2 things:
1) Coolant is low and not circulating much or at all
2) Maybe the impellar on the water pump is spinning on the shaft and not circulating the coolant

Just a thought.
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Old 04-27-2011, 02:32 AM
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Findings: Got to the truck and found ground wet between the two front tires. Found a water hose and topped off the degass bottle (about 2gal needed). Checked for leaks again and saw a drip or two comming from one of the pulleys on the front of the engine. passed it off as poor filling technique. Got home and found the drip in the same location. It doesn't seem to be coming from any of the hoses and with the location being the front of the engine almost dead center, I'm thinking Water Pump.

So, does anyone have any ideas or experience on Replacing the water pump? Any special tools needed? Any Info would be GREAT.
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  #4  
Old 04-27-2011, 05:03 AM
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Quote:
Originally Posted by Cowboy Cadillac View Post

So, does anyone have any ideas or experience on Replacing the water pump? Any special tools needed? Any Info would be GREAT.
The fan clutch nut is 46mm I believe, but I used a 18" pipe wrench. Here's a write up with pics.
http://www.dieseltechtalk.com/forums...=5026#post5026
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Old 04-27-2011, 07:04 AM
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Lilpooh,

That was a great write-up. I will have to print that and take to the shop with me.

I knew I could get a good answer here.

Thanks again,
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Old 05-03-2011, 02:10 AM
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Hey thanks for all the info. Got it to the shop and pulled and replaced. Everything seems to be running normal now. For any one looking for some visual help this (post #4)is a write-up Lilpooh sent me with some pictures. It helped me so I think it will help others.
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