Oil cooler?
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Lead Driver
Joined: Sep 2003
Posts: 5,241
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From: Other side of the sunrise
Back flushing is merely a temporary band aid -- ultimately you need to replace that Oil FILTER (cooler).
Ford's (International's) design on the 6.0L isn't all that hot, it's far worse on the 6.7L where dirty oil (from the pan) goes right to the Oil FILTER (cooler) first before hitting the actual filter. They're simple to replace on the 6.7L thankfully, mucho harder on the 6.0L.
Ford's (International's) design on the 6.0L isn't all that hot, it's far worse on the 6.7L where dirty oil (from the pan) goes right to the Oil FILTER (cooler) first before hitting the actual filter. They're simple to replace on the 6.7L thankfully, mucho harder on the 6.0L.
Fleet Owner
Joined: Nov 2003
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Fleet Mechanic
Joined: Jul 2013
Posts: 1,402
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From: Tuscaloosa, AL
Option 2 in post 10 perfectly fits your symptoms. Oil cooler bypass valve gets stuck open at high demand or the oil cooler spring is very weak. It takes 30 minutes to check. It can be removed without removing anything but the oil filter cap. It would be nice to have the specs on that spring so it can be replaced without replacing the entire oil filter base.
I do not believe you have a clogged oil cooler, unless it's the ect or eot are reading wrong at low temps. If you don't want to spend the money, simply swap the ect and eot sensors and see what happens.
I'm done.
Edit....
Well hell, I just realized i've got a spare oil cooler bypass valve spring. I mail it to you if you want it. I may take it to a structures lab and test it to see what the K value is. That way, we could match it up.
I do not believe you have a clogged oil cooler, unless it's the ect or eot are reading wrong at low temps. If you don't want to spend the money, simply swap the ect and eot sensors and see what happens.
I'm done.
Edit....
Well hell, I just realized i've got a spare oil cooler bypass valve spring. I mail it to you if you want it. I may take it to a structures lab and test it to see what the K value is. That way, we could match it up.
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Bodo Malo
1999 - 2016 Super Duty
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Oct 23, 2018 10:13 AM
