Missing coolant stumped
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More Turbo
Joined: Jan 2011
Posts: 699
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Missing coolant stumped
I have a 06 F350 with 288k miles on it. Been rock solid. About 20k miles ago I had head decked and gaskets with ARP studs and injectors done. Lately though I am missing coolant. I’ve been checking everything I have no puking out the degas bottle, the bottle is clean. No EGR it’s deleted. No drips anywhere that I can find. I did replace the heater valve as it had a few white spots on it. I can’t figure out where the coolant is going. It runs great. I’m a bit stumped Any suggestions?
Fleet Mechanic
Joined: Feb 2023
Posts: 1,924
Likes: 817
I have a 06 F350 with 288k miles on it. Been rock solid. About 20k miles ago I had head decked and gaskets with ARP studs and injectors done. Lately though I am missing coolant. I’ve been checking everything I have no puking out the degas bottle, the bottle is clean. No EGR it’s deleted. No drips anywhere that I can find. I did replace the heater valve as it had a few white spots on it. I can’t figure out where the coolant is going. It runs great. I’m a bit stumped Any suggestions?
Cargo Master
Joined: Oct 2018
Posts: 2,811
Likes: 1,911
From: unfortunately Germany
Mark the coolant level in the degas bottle.
Pressurize coolant system for hours with 16psi if you don't found the leak immediately. Check all hoses, degas bottle and connections for leaks.
Is the oil level rising?
Pressurize coolant system for hours with 16psi if you don't found the leak immediately. Check all hoses, degas bottle and connections for leaks.
Is the oil level rising?
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