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6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis

ECT=194, EOT = 211 = bad ?

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Old May 16, 2012 | 08:37 PM
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ECT=194, EOT = 211 = bad ?
Does this mean my oil cooler is going to need to be replaced soon?

I've never seen the 2 numbers more than 2 - 3 apart,...... out of the blue, not towing, just bang, she's heating up.

 
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Old May 16, 2012 | 08:55 PM
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Sounds like a new oil cooler is in your future.

On the bright side the 6.4L oil cooler is plumbed in parallel with the EGR cooler rather than in series like the 6.0L. Meaning that a plugged oil cooler shouldn't destroy your EGR coolers.
 
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Old May 16, 2012 | 09:42 PM
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New oil cooler time.
 
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Old May 17, 2012 | 12:23 AM
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SOB, I really thought I wouldn't get to this, the oil gets changed every 5000 km (3000 miles)

Will ford repair it under warranty, or do they wait for a major issue first ?
 
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Old May 17, 2012 | 05:05 AM
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interesting. How did you notice it? Were you cruising on level hwy same speed and no load?

Don't know if they replace it without a code.
 
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Old May 17, 2012 | 07:13 AM
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Originally Posted by parkland
SOB, I really thought I wouldn't get to this, the oil gets changed every 5000 km (3000 miles)

Will ford repair it under warranty, or do they wait for a major issue first ?
They plug on the coolant side.
 
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Old May 17, 2012 | 08:33 AM
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Originally Posted by senix
interesting. How did you notice it? Were you cruising on level hwy same speed and no load?

Don't know if they replace it without a code.
I noticed it because I had alarms on the eot and ect at 210.
I don't think EOT has ever hit 200 before, never mind 210.

Stock tune, 110 km/h, flat, not in regen, etc .
 
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Old May 17, 2012 | 09:35 AM
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Wow, called ford and they don't consider it an issue till theres 30 deg of difference.
He even said they just replaced one, and brand new there was more difference than mine!

I was told maybe use a oil system cleaner and switch to synthetic, but that sounds like it would get really expensive
 
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Old May 17, 2012 | 06:53 PM
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This is one reason I run Synthetic oil......
 
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Old May 17, 2012 | 09:53 PM
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Yeah i know synthetic is better, but man is it expensive.

You could fix quite a few things with money saved from regular oil changes
 
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Old May 18, 2012 | 10:05 AM
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Would an EGR delete resolve this because I think I'm getting those ECT temps?
 
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Old May 18, 2012 | 10:48 AM
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I think the newer style EGR valve is un-cooled altogether.

This came as a surprise, my EOT and ECT have always been spot on, or within just a few degrees.

Truck only has 60,000 miles
 
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Old May 18, 2012 | 10:48 AM
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Originally Posted by joverstr2
Would an EGR delete resolve this because I think I'm getting those ECT temps?
Is it your ECT or EOT thats elevated?
 
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Old May 18, 2012 | 10:55 AM
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Park, I just went out for a drive and get everything up to operating temps. ECT=196, EOT=92, TFT=165.
 
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Old May 18, 2012 | 11:05 AM
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Originally Posted by joverstr2
Park, I just went out for a drive and get everything up to operating temps. ECT=196, EOT=92, TFT=165.
Remember that your EOT temps will continue to climb long after your ECT gets fully up to temperature. After awhile your EOT will continue to climb until it exceeds ECT, and there's where you want to look for the maximum difference. Those numbers you just posted are perfectly normal for a truck that's still warming up.
 
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