NOT AGAIN! Deltas bad! 5k on cooler! - Ford Powerstroke Diesel Forum
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  #1  
Old 06-20-2012, 04:36 PM
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NOT AGAIN! Deltas bad! 5k on cooler!

Ok so here is my headache! I did a full complete, took me three days, super flush on my truck swapping it over to ELC before we did my studs, oil cooler, and egr delete! I Did restore and restore plus twice each then flushe for 2 days with tap water then finally with distilled water!

About 2 months later I had the trans cooler inside my radiator bust and fill my new fresh ELC up with trans fluid. So I change the radiator and flush for 2 days with Restore plus, simple green, Purple Power, tap water, then finally with 24 more gallons of distilled water before I added the ELC!

Soi sold my gauge setup about two months ago and finally got me a PHP FICM tuner this week and using it for gauges!

And low and behold my deltas are running 20-24! Only 5k on this oil cooler!

Anybody think it might be anything else besides oil cooler! I would throw one in if I wasn't so anal about the flushing process! That is the only thing that, makes me doubt the oil cooler!
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Old 06-20-2012, 05:39 PM
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It's the oil cooler, maybe it got clogged up with the trans mixture. After the trans cooler bust, did your flush include a reverse flush of the oil cooler? How long did you reverse flush the oil cooler and did you use hot water to do so?
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Old 06-20-2012, 05:44 PM
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There is a oil cooler bypass valve built into the oil cooler housing that could be bad or bypassing.
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Old 06-20-2012, 05:56 PM
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Good point, but the bypass valve would need to be missing the spring or missing all together. I did several tests with the bypass valve regarding the effect on temperature and it has little influence on the oil temperature *unless* it isn't there or the spring missing, but yes that can do it too.
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Old 06-20-2012, 07:17 PM
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I didnt do a "reverse flush"! I would add the stuff and drive till the motor was up to temp plu some and then do it again! I mean I drove like 20 miles each for Restore+, Simple green x2, Purple Power, Several times with tap water, and alot of distilled flushes!

Im gonna check on the spring! I cant remember if we messed with it or not!


The guy that had the truck befor me did a jacked up oil cooler job( I mean took the cab off for the oil cooler) then filled with green antifreeze! Messed up rad. and all. Before i got it he done put a new rad and oil cooler on it. I bought it cheap and been tinkering with it since.

Last edited by muddy650; 06-20-2012 at 07:22 PM.
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Old 06-20-2012, 07:24 PM
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You *might* have a chance by reverse flushing, give it a shot what do you have to lose? Of course check that bypass valve too.
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Old 06-20-2012, 07:37 PM
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You got a link to the reverse flush!

I should buy stock in Zerex ELC. if I keep flushing!

This will make 3!
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Old 06-20-2012, 08:38 PM
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I thought you were referencing this no don't buy the stock, if you are running water only with a 2 degree or less difference then add the antifreeze, else replace oil cooler.
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Old 06-20-2012, 08:46 PM
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I didn't mean buying "stock antifreeze" I ,ean like "stock" in Zerex coolant! I have bought so much lately! Ha ha
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Old 06-20-2012, 10:00 PM
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You need to let the Restore/Restore Plus etc. run for 1.5 -2 hrs before flushing them out. 20 miles isn't giving them time to work.
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