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Replace oil cooler anyway?

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Old Apr 4, 2012 | 02:22 PM
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Replace oil cooler anyway?

I was seeing a 35-40 degree spread and planned on changing my oil cooler (last changed 30k miles ago)
During the flush I took a longer drive (30 miles or so) to get some supplies and my oil temp would not get above 205, previously on the same trip it was getting to 232.
Should I still change the oil cooler or finish flush and add coolant?
Thanks
 
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Old Apr 4, 2012 | 02:26 PM
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damn. tats a high delta. if ur gonna change ur oil cooler, please ensure tat u change ur egr cooler as well. flush everything out b4 u change ur oil cooler and egr cooler.

there are ford recommendations. best of luck.
 
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Old Apr 4, 2012 | 02:34 PM
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your oil cooler is not fixed, it's temporary and will come back. Your EGR cooler has been damaged and needs to be changed or deleted, I'm going with the EGR cooler from BulletProof and the oem style oil cooler.
 
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Old Apr 4, 2012 | 03:34 PM
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Originally Posted by anassar11
I was seeing a 35-40 degree spread and planned on changing my oil cooler (last changed 30k miles ago)
During the flush I took a longer drive (30 miles or so) to get some supplies and my oil temp would not get above 205, previously on the same trip it was getting to 232.
Should I still change the oil cooler or finish flush and add coolant?
Thanks
You are probably just seeing an improved heat transfer to clean water than you did with anti-freeze, which is normal. So your choices are to go ahead and try it, and risk wasting a fillup of anti-freeze (~$80), or bite the bullet now and do the oil cooler. Without more experience with your specific truck, I could not make this choice.
 
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Old Apr 4, 2012 | 03:35 PM
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Bulletproof egr installed last time I replaced the oil cooler
So we are good there
Thanks though
 
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Old Apr 4, 2012 | 03:38 PM
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It is disturbing to me that in only 30k miles you may need a new oil cooler element. Have you been monitoring temps all along, or is this a new gauge? If you have been monitoring, did this increase in temp happen gradually? Have you been running a coolant filter? Was the system flushed when the oil cooler was replaced last time?

Sorry for the inquisition. Just hoping to learn something from this.
 
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Old Apr 4, 2012 | 04:45 PM
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Yes I also installed a coolant filter last oil cooler change
Yes I flushed before last oil cooler replacement
Edge insight had a bad screen and I went 5 months without it before i sent it in to be replacedso I have no idea if it happened gradually or all of a sudden
It was great for first 20k while insight was working
 
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Old Apr 4, 2012 | 04:55 PM
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Originally Posted by anassar11
Yes I also installed a coolant filter last oil cooler change
Yes I flushed before last oil cooler replacement
Edge insight had a bad screen and I went 5 months without it before i sent it in to be replacedso I have no idea if it happened gradually or all of a sudden
It was great for first 20k while insight was working
Do you think there is any chance that you have an intermittently bad temp sensor or connection? I believe a weak connection makes these read high, not low.
 
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Old Apr 4, 2012 | 05:00 PM
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wow tats interesting. i forgot bout tat. it may be possible tat a bad sensor or connection may cause it to read high and not low. someone mentioned it a while back. maybe it was bill? lol.
 
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Old Apr 4, 2012 | 05:19 PM
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Originally Posted by anassar11
Yes I also installed a coolant filter last oil cooler change
Yes I flushed before last oil cooler replacement
For the sake of discussion...you only installed the coolant filter as recently as 5k miles ago when you did the last oil change? And when you flushed the cooling system...did you chemically flush it (Restore, VC-9) or did you just run water though it? It's possible to back flush the oil cooler and possibly regain some of the heat exchange abilities that were lost. But with a 35+ spread...I say your cooler is shot. If you didn't use VC9 last time, I highly recommend it this time when you re-flush your cooling system.

The cooler shouldn't have plugged up in 30k miles.
 
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Old Apr 4, 2012 | 05:47 PM
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Coolant filter was installed at time of last oil cooler replacement
Yes did vc9 flush before last replacement
Oil changed 1700 miles ago
I guess bad sensor good be the problem but why would it not be the same during current flush?
 
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Old Apr 4, 2012 | 06:09 PM
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Originally Posted by anassar11
I guess bad sensor good be the problem but why would it not be the same during current flush?
A weak connection is all I can think of, and I know it is a long shot. It wouldn't hurt to pull the connector and slide it on/off a few times to make a fresh seat.

From what you said, this happened in only 10k miles, because that is when your gauge went dead, and all was well up until then. This really makes me question if the oil cooler is bad. I'm leaning toward risking some coolant, maybe even a new sensor, and see where you are before tearing into the thing again.
 
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Old Apr 4, 2012 | 09:40 PM
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Are the ECT & EOT reading the same temp after a 12 hour cold soak they should be right around the ambeint temp
 
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Old Apr 5, 2012 | 07:20 AM
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Originally Posted by anassar11
Bulletproof egr installed last time I replaced the oil cooler
So we are good there
Thanks though
Bullet proof egr delete or bullet proof replacement egr cooler?
 
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Old Apr 5, 2012 | 01:21 PM
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Bulletproof egr cooler
 
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