Another high delta thread
Laughing Gas
Joined: Feb 2016
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I wish I had a golden arrow but I don't. I would definitely verify data integrity prior to the flush. Cold soak temps, swap/new sensor, etc. Have you drained the coolant to the level you did for this job anytime since the cooler change?
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Senior User
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I have drained the coolant numerous times. Seems like most every repair makea me do it. I have reused it but with a few issues ive had i would say ive put about 8 gallons of concentrate in it so not all old coolant. I'm gonna cold soak tomorrow. I do have a new sensor I can swap in so I'll do that too. I also just bought elc to put in her so she'll get new coolant either way.
Fleet Owner
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I am probably missing something in the thread, but the entire cooling system is apprx. 28 quarts or 7 gallons. You aren't running a higher concentration than 50% (14 qts or 3.5 gallons of concentrate) are you?
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not intentionally no. I did the flush procedure in the tech folder when I did it. When I add coolant now I mix it with distilled water 50/50 as best I can. I had lost some when I had a coolant line burst. Lost some doing the water pump, and radiator. Just saying through loss I have added maybe another 4 gallons which I guess translates to another entire system full.
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it's oem been good since I put it in.
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Brett Foote
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I would measure the concentration pretty quickly. You can get the proper tool at any auto parts store. 50/50 is -34 *F protection. 60% concentration is -62 *F protection.
If the concentration is too high, you will get poor heat transfer and reduced flow. Ford warns against potential damage at concentrations above 60%
If the concentration is too high, you will get poor heat transfer and reduced flow. Ford warns against potential damage at concentrations above 60%
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Senior User
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I don't know what was in it before looked like gold. I put zerex g05 back in it.
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From: Bozeman MT
You might try opening the flush port on the valve body, place a pipe cleaner down 4 inches into the Oil Cooler and twist it around - you are looking for an orange goo that is laying in the bottom of the oil cooler and is effectively reducing the surface area available to the exchange of heat. If it is there, you can use Restore to dissolve the silicant and flush it out of the coolant system.
Last edited by Copper.Farm; Apr 3, 2017 at 08:34 PM. Reason: Changed from 'Restore Plus' to 'Restore'
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Senior User
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You might try opening the flush port on the valve body, place a pipe cleaner down 4 inches into the Oil Cooler and twist it around - you are looking for an orange goo that is laying in the bottom of the oil cooler and is effectively reducing the surface area available to the exchange of heat. If it is there, you can use Restore Plus to dissolve the silicant and flush it out of the coolant system.