Odd deltas, looking for some ideas - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 20 (permalink) Old 12-15-2018, 03:35 PM Thread Starter
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Odd deltas, looking for some ideas

Sooo I know the standard deal for deltas is +/-15 degrees around 185 for my truck, recently though I have been running 175 for coolant and barely 160 for the oil.... what the heck is going on here? Any ideas folks?

Added note I am so believe my coolant cap needs to be replaced.

Thanks for the help!
Zack


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post #2 of 20 (permalink) Old 12-15-2018, 04:42 PM
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Re: Odd deltas, looking for some ideas

What are the temps reading when the engine is cold?

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post #3 of 20 (permalink) Old 12-16-2018, 12:35 AM Thread Starter
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Re: Odd deltas, looking for some ideas

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Originally Posted by 79jasper View Post
What are the temps reading when the engine is cold?

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Working on that now lol, truck was hot when I posted and I am still letting it cool due to being at work, I will take note when I leave here in about 2hrs... so it will have sat 6 hours since I have started it.

Ambient temp here in Ky is 45-55 right now


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post #4 of 20 (permalink) Old 12-17-2018, 12:38 AM
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Re: Odd deltas, looking for some ideas

Thermostat?


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post #5 of 20 (permalink) Old 12-17-2018, 11:43 AM
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Re: Odd deltas, looking for some ideas

^^^ thatís my idea also. Seems stuck open but checking the cold temps first is a good idea.

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post #6 of 20 (permalink) Old 12-17-2018, 03:14 PM Thread Starter
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Re: Odd deltas, looking for some ideas

Sorry for the delays guys,

Cold with ambient air being 55 after 6 hours of sitting both oil and coolant is at 65....

After about 100 degrees on warm up is when the oil and coolant temp begin to separate...

Coolant will be 174 and oil will be 150ish and stay just at that spread.....



Thermostat is something I have been thinking as well and also the oil temp sender....


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post #7 of 20 (permalink) Old 12-17-2018, 03:15 PM
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I would start with a thermostat without question
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post #8 of 20 (permalink) Old 12-17-2018, 03:29 PM Thread Starter
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Re: Odd deltas, looking for some ideas

Quote:
Originally Posted by matthewd11 View Post
I would start with a thermostat without question


Ya thatís what I am thinking..... damn I hate working on my own truck these days


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post #9 of 20 (permalink) Old 12-19-2018, 11:34 PM Thread Starter
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Re: Odd deltas, looking for some ideas

Well I havenít gotten to the thermostat yet, planned to tonight along with addressing u joints.... well before I got to the thermostat I decided to knock out the u joints.....

Well I cracked the rear drive shaft as I was pressing it out..... if any one has a 04 ccsb 2x4 rear shaft (post carrier bearing) lemme know.....

Thank god I got the shop truck fixed yesterday


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post #10 of 20 (permalink) Old 12-20-2018, 12:39 PM Thread Starter
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Re: Odd deltas, looking for some ideas

Well I got the rear drive shaft jerry rigged at the Moment and am looking for a new one while this one holds up....

I replaced the thermostat and the deltas are oil being 172 was the highest I saw with the coolant at 180.....

I am thinking the oil temp is toast. And it didnít take the truck over 15 min of highway driving to get to 170 on the coolant temp sooo I think itís a combination of issues


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2004 F-250 Lariat 6.0L, crew cab, 2006 motor swap, white w/ gray interior, SCT X4, 4'' down pipe with 5'' to a stack, 325/65-18 nitto terra grapplers, air rad intake, egr delete, studded and deleted, FASS System ([email protected]) with sump, 190/100% Swamps Diesel Injectors, atlas 80 PHP FICM, RCD rods, DDPM lifters, Turbo Lab of America turbo.
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