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post #1 of 10 Old 01-28-2013, 08:16 PM Thread Starter
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Missing coolant

I changed the oil today and checked the coolant and it was low I have filled it a couple times and after while the level will go down to the little ford logo on the tank. Every time it goes down to this level but the thing is I can't find a single wet spot where it has been leaking and I don't have coolant in the oil so I know its not a head. I does not overheat even in the summer so I really havent worried about it but just curious to know if this is a common thing or what's going on.
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post #2 of 10 Old 01-28-2013, 08:50 PM
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Missing coolant

Look around the thermostat housing, it likes to leak there, go down the engine and dry on the bottom rad hose


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post #3 of 10 Old 01-28-2013, 08:53 PM Thread Starter
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Re: Missing coolant

Will do thank you
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post #4 of 10 Old 01-28-2013, 08:59 PM
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Missing coolant

Be sure to come back and let me know what you find


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post #5 of 10 Old 01-28-2013, 09:02 PM Thread Starter
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Re: Missing coolant

Will do I'll check tomorrow but it won't be till this weekend I will be able to check good. Will I be able to tell with the motor cold or does it need to be up to operating temp
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post #6 of 10 Old 01-28-2013, 09:08 PM
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Missing coolant

Usually the leaks show up the best while warm, but typically you will see it all the time


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99.5 F-350 SRW Short Bed, Ex Cab.
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Wicked Wheel'd,
Southbend
Autometer - Boost, Pyro
TW 6 Pos Chip
Water/Meth Inj
Diamond Eye 4" TB

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post #7 of 10 Old 02-02-2013, 07:09 PM Thread Starter
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Re: Missing coolant

Alright I found where the coolant is going. Its the t stat housing it is crusty underneath where the radiator hose goes in and is dripping onto the radiator hose at the bottom of the radiator. Should I replace just the gasket or do you think I should replace the t stat since I have it apart?
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post #8 of 10 Old 02-03-2013, 01:02 AM
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Missing coolant

Replace the thermostat too! Wow I called that one lol!!


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Wicked Wheel'd,
Southbend
Autometer - Boost, Pyro
TW 6 Pos Chip
Water/Meth Inj
Diamond Eye 4" TB

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post #9 of 10 Old 02-03-2013, 01:11 AM
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Missing coolant

I had a similar issue today. Noticed a leak under the truck. Ended up being where the upper radiator hose connects to the tstat. The factory clamp had weakened and was letting coolant out. Replaced it with an old fashioned hose clamp and the problem was fixed.


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post #10 of 10 Old 02-10-2013, 11:43 PM
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Missing coolant

Thanks Dave, I'll remember that


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99.5 F-350 SRW Short Bed, Ex Cab.
6637
Wicked Wheel'd,
Southbend
Autometer - Boost, Pyro
TW 6 Pos Chip
Water/Meth Inj
Diamond Eye 4" TB

7 year Veteran with SBFD
Airframe and Powerplant Mechanic
Head Marine Technician

Dont Tread on Me
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