Deltas hovering around 11* and scaring me. - Ford Powerstroke Diesel Forum
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Old 07-04-2012, 11:10 AM
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Deltas hovering around 11* and scaring me.

Well I took the truck for a drive after a coolant flush and oil change and deltas before and after seem to be hovering around 11*. I once saw 13* and the higher number is scaring me a little. Don't want to have problems so I guess I will be looking to change the oil cooler within the next 10,000 miles. Truck is a 2003 with 133,000 miles on it. It recieved head gaskets at 85,000 from Ford and a new turbo at 95,000 also from Ford. Anyone else got delta* in the 10*-13* range without issues?
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Old 07-04-2012, 12:17 PM
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Originally Posted by seeemmiss View Post
Well I took the truck for a drive after a coolant flush and oil change and deltas before and after seem to be hovering around 11*. I once saw 13* and the higher number is scaring me a little. Don't want to have problems so I guess I will be looking to change the oil cooler within the next 10,000 miles. Truck is a 2003 with 133,000 miles on it. It recieved head gaskets at 85,000 from Ford and a new turbo at 95,000 also from Ford. Anyone else got delta* in the 10*-13* range without issues?
Sometimes when you do a coolant flush the trash gets caught in your oil cooler.
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Old 07-04-2012, 01:50 PM
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How are you running your truck?
Loaded?
Running hard?
Is this well after you are warmed up?
Are these QUICK spikes or are the temps riding out?

I am assuming you are speaking of the oil being the higher temp which a coolant flush wont help.
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Old 07-04-2012, 03:14 PM
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Just put your right foot down and keep going haha
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Old 07-04-2012, 03:50 PM
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Quote:
Originally Posted by Galaxie View Post
How are you running your truck?
Loaded?
Running hard?
Is this well after you are warmed up?
Are these QUICK spikes or are the temps riding out?

I am assuming you are speaking of the oil being the higher temp which a coolant flush wont help.
I was running at 65 on rolling hills of north Georgia. The truck was empty and it was good and warm. The temp spead was somewhat of a spike to around 13-14 degrees with the arverage being 10-11 degree difference. Oil never got over 209 and coolant was around 198. I guess I have a partially clogged cooler and will just keep watching until it gets over 15 degree between the two. On side roads, the temps stay around an 8 degree difference.
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Old 07-04-2012, 03:51 PM
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Quote:
Originally Posted by seeemmiss View Post
I was running at 65 on rolling hills of north Georgia. The truck was empty and it was good and warm. The temp spead was somewhat of a spike to around 13-14 degrees with the arverage being 10-11 degree difference. Oil never got over 209 and coolant was around 198. I guess I have a partially clogged cooler and will just keep watching until it gets over 15 degree between the two. On side roads, the temps stay around an 8 degree difference.
That's the same thing mine is doing. It's getting a new oil cooler Monday.
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Old 07-04-2012, 04:05 PM
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Let me know what the old one looks like so I will know how clogged it really is (in theory).
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Old 07-04-2012, 04:57 PM
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Originally Posted by seeemmiss View Post
Let me know what the old one looks like so I will know how clogged it really is (in theory).
It will be warranty, but I'll ask the tech if I can run by and see it when he pulls the old one out. After the 03-07 oil cooler probs it seems ford would increase the size of the coolant passages.
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Old 07-04-2012, 05:02 PM
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a 2008 6.0?


OP your deltas are at the outer limit but not over ,, save up and get her done but many folks who do not monitor are way over that and unless you have the latest flash they won't know it (reduced power)
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Old 07-04-2012, 05:16 PM
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Seeemmiss,

Mine is an '04 with 120K miles. I am running the same delta's that you are, and have been for almost two years now. I am not OVERLY concerned because, whether running 65mph in summer, winter, pulling my fully loaded trailer or even empty, I run those same delta's. Also, when I slow down from highway speeds, my delta temps drop quickly to about an 8 degree delta. I'm certainly not suggesting that you wait it out, I'm just saying that I am closely watching mine for the time being. Hope this is helpful. Good Luck!
Roger
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