2006 F250 6.0 coolant loss - Ford Powerstroke Diesel Forum
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Old 01-05-2014, 05:25 PM
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2006 F250 6.0 coolant loss

Coolant loss, no visible leakage, no white smoke, no coolant in oil, outside tempature was -3, went to town heater worked fine got to town, heater stopped working so checked coolant level and it was down, put 1 gallon anti freeze filled to min level returned home 26 miles away coolant level was not same when i got there below min level but still visible in reservoir. any ideas?
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Old 01-05-2014, 05:35 PM
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If your not leaking it,you gotta be burning it. Head gaskets? Cracked heads?
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Old 01-05-2014, 05:42 PM
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Up in the search box type in head gasket testing. You will find a lot of info. Their is a simple pressure test that you can do. A chemical test that will check for exhaust in the coolant.
You can also type in "using coolant"

Oh yeah and welcome to the site. Good luck.
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Old 01-05-2014, 07:30 PM
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Top it off and watch level closely. Can also pull the egr valve and look into intake manifold for moisture. Most likely going to see it there first before loosing head gaskets.
But if you do see moisture in hole then: egr and oil coolers are shot.
Look into it before it becomes a head gasket issue too. What happens is if it leaks enough the coolant basically becomes a water injection system on a grand scale and raises cylinder pressure to the point where head gaskets fail.
May actually run like it has more power for a while until you loose head gaskets of coarse.

Figure it out, EGR/Oil Cooler job is under $2000.00 for sure.
Head Gaskets $5000.00 plus
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Old 01-05-2014, 07:33 PM
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Head gaskets.
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Old 01-06-2014, 04:48 AM
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If there aren't any leaks, it's definitely going through the engine. it has to be EGR, cracked head or head gaskets unless it froze and cracked something internally.
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Old 01-20-2014, 11:23 AM
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Moisture under egr valve

Quote:
Originally Posted by mhatlen View Post
Top it off and watch level closely. Can also pull the egr valve and look into intake manifold for moisture. Most likely going to see it there first before loosing head gaskets.
But if you do see moisture in hole then: egr and oil coolers are shot.
Look into it before it becomes a head gasket issue too. What happens is if it leaks enough the coolant basically becomes a water injection system on a grand scale and raises cylinder pressure to the point where head gaskets fail.
May actually run like it has more power for a while until you loose head gaskets of coarse.

Figure it out, EGR/Oil Cooler job is under $2000.00 for sure.
Head Gaskets $5000.00 plus
I finally got a chance to let it run and then pull the egr valve. There was moisture in the bottom. Truck still runs fine do you think I need to change head gaskets also?
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Old 01-21-2014, 12:25 AM
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Quote:
Originally Posted by Kimber View Post
I finally got a chance to let it run and then pull the egr valve. There was moisture in the bottom. Truck still runs fine do you think I need to change head gaskets also?
There is a way to see if it's head gaskets or egr cooler. Look on you tube under testing for egr or head gaskets leaking.
You will need a small hose and a stopper for your coolant tank.

My guess is it's the egr cooler unless it's been leaking for a long time. Also your oil cooler is going to be plugged and need replacing and this is what causes the egr coolers to fail.

Check out YouTube on it. If your not familiar with Powerstroke engines it's best to have it done by a mechanic that is.
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