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  #1  
Old 06-20-2012, 01:50 AM
5.0bronco
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6.0 coolant leak

hello my 2006 powerstroke has just began to leak coolant, it appears its leaking externally from the driver side cylinder head at the rear of the engine. i was wondering if any one has seen this problem? also the botton of the lifter valley is wet also and it appears to be coolant. could it be leaking from my egr delete and running down my lifter valley and then running down the back of my cylinder head? the truck doesnt blow any white smoke on start up or any other time. any suggestions where to start first would be greatly appericated.

thanks,
Jonior
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  #2  
Old 06-20-2012, 01:53 AM
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Re: 6.0 coolant leak

Check the hose going to the heater core mine rubbed threw on the ficm the coolant line off the bottom of the degas bottle
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  #3  
Old 06-20-2012, 02:09 AM
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Re: 6.0 coolant leak

just checked the hose going to the heater core and no luck that is not the leak
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Old 06-20-2012, 04:53 AM
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Re: 6.0 coolant leak

also some times the truck has a high pitch whistle that doesnt sound like the turbo some times when im accelerating. any suggestions would be appericated!
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Old 06-20-2012, 12:53 PM
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Re: 6.0 coolant leak

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Originally Posted by 5.0bronco View Post
also some times the truck has a high pitch whistle that doesnt sound like the turbo some times when im accelerating. any suggestions would be appericated!
That "whistle" doesn't sound good, that usually means the cap on the degas bottle is blowing off pressure. I think I would T a pressure gauge in that 3/8's hose that goes to the radaitor from the degas bottle so you can see whats going on with cooling system pressure.
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  #6  
Old 06-20-2012, 04:41 PM
5.0bronco
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Re: 6.0 coolant leak

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Originally Posted by toolmangary View Post
That "whistle" doesn't sound good, that usually means the cap on the degas bottle is blowing off pressure. I think I would T a pressure gauge in that 3/8's hose that goes to the radaitor from the degas bottle so you can see whats going on with cooling system pressure.
thats what im gonna do tonight and hopoefully that is not the case, it appears that my drivers side manifold is leaking so hopefully that is the whistle
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Old 06-22-2012, 12:28 AM
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Re: 6.0 coolant leak

i just ran the truck with the pressure guage hooked up and ran the snot out of it and i only hit 3.5psi on my guage. the truck has only leaked coolant once and it was only a puddle about the size of a half dollar on the ground. im wondering if the hose on my egr delete might be leaking and running down the lifter valley and dripping down my cylinder head?
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  #8  
Old 06-22-2012, 12:30 AM
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Re: 6.0 coolant leak

also i used 3 different guages to make sure i wasnt using a guage that was off.
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Old 06-22-2012, 01:29 AM
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Re: 6.0 coolant leak

Mine did the same it was the rubber tube that comes from the egr cooler to the oil cooler running down the vally dripping from where you describe
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  #10  
Old 06-23-2012, 05:03 PM
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Re: 6.0 coolant leak

just cleaned the coolant off the engine and let the truck sit for a day and the coolant appears to be leaking from the head gasket
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