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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

slight coolant loss

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Old Dec 9, 2017 | 08:50 AM
  #1  
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olfordsnstone
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slight coolant loss

2005 6.0, F350, sinister delete, final charge elc, arp studs, standpipes/dummy plugs upgrade, blue spring upgrade, stc fitting upgrade, gearhead tunes: SRL/unlimited tow/8K tow... seems to be losing a little coolant but no sign of anything leaking or barfing from degas bottle. No smell of coolant while towing etc. Only thing I noticed is that there seems to be a little superficial cracking going on at one part of the degas bottle, but no sign of coolant coming out there or anywhere. Not sure what caused the cracking in the plastic but I think I'll be replacing the bottle preemptively to avoid a problem in the future.

The truck runs great, no issues. Currently running SRL for winter since no towing demand this time of year.

The coolant has dropped maybe 1/2 inch in the degas bottle. I added a little elc that I had in the garage a couple of months ago and didn't check to see if it was ever completely up to the sticker full line or where it actually had come up to as I don't have flat ground around here but I'm pretty sure that the level is still dropping slightly over time. Any ideas of where the coolant might be going?
 
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Old Dec 9, 2017 | 09:14 AM
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Evaporation if you have a crack in the bottle. Check the hose for the delete also, could be a little loose and the seepage evaporates.

Take a flashlight to the tank at night and see if it's a little steamy when you shut down, pointed away from the tank and above it to see the vapor. May easy to see now that its cold out.
 
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Old Dec 9, 2017 | 09:41 AM
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olfordsnstone
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Thanks Randy. I'll give that a try next time I run the engine for a while to maybe get enough coolant in there for a check, if applicable. Probably next time I take her to town for Christmas shopping after the weekend. I'll also get shopping for a new degas bottle.
 
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