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Old Jun 19, 2011 | 11:45 AM
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6.0 question

need some advice on this one.... truck seems to running fine , but checked ect eot temps. ect 184 eot was 228.after 1hr of driving. checked temps after sitting for 10 hrs. air temps in the mid 60's. ect read 81 eot read 109. no dtc codes. could it be an eot sensor going out? also no coolant level changes.
thx in advance for any advice ya'll can share
 
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Old Jun 19, 2011 | 12:10 PM
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Your temps after a 10 hour cool down are definitely way off, they should be within a few degrees. What are you using to read the temps?
 
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Old Jun 19, 2011 | 08:05 PM
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using a cornwell techforce scan tool
 
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Old Jun 19, 2011 | 08:08 PM
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I'd suspect that EOT sensor is failing. I'd let it cool down overnight and check again...
 
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Old Jun 19, 2011 | 08:14 PM
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well i'll try it in the morning and post what i find...otherwise really scratching my head on this one.atleast if it were losing coolant, having a c.e.l or some dtc's i'd have some idea of where to start..lol. appreciate any and all input you guys have to share, don't have the extra to take to the stealership
 
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Old Jun 19, 2011 | 08:18 PM
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Originally Posted by ejs05f350
well i'll try it in the morning and post what i find...otherwise really scratching my head on this one.atleast if it were losing coolant, having a c.e.l or some dtc's i'd have some idea of where to start..lol. appreciate any and all input you guys have to share, don't have the extra to take to the stealership
Saying things like that will turn the techs on this site away from helping you.

It's kinda disrespectful to what they do for a living to support themselves and their families.
 
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Old Jun 19, 2011 | 09:12 PM
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when was the oil cooler last done? if never then its time now!
 
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Old Jun 20, 2011 | 07:44 PM
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to my knowledge oil cooler was never replaced. egr cooler was replaced and cooling system flushed 2 yrs ago at dealer just before i bought it.

anyways my temps this morning w/scan tool after 14hr cooldown.
air temp according to the news was 59'..... ect was 74 eot was 109.
sensor??? possibly.
 
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Old Jun 20, 2011 | 07:53 PM
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tyler... i mean no offense to the techs who work for a living and know their job and can do their job, but i'm sure that everyone would agree at some point that the dealerships hang people out to dry . atleast a couple of them around my area seem that way and it kinda pisses u off a bit. not trying to be disresepectful to anyone! i too work my butt off for what little i have! and it's irritating to take to dealership a. and they can't figure it out and want your authorization for more diagnostic time /charge u accordingly and they still supposedly can't figure it out. then take to dealership b. and they figure out the problem within the alotted time "they" set for diagnostics. i hope u can see it from my point of view.
 
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Old Jun 20, 2011 | 08:06 PM
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if oil cooler was never replaced and the egr has failed already then im going with failed oil cooler or atleast going south. could be a sensor but doubt it
 
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Old Jun 20, 2011 | 08:23 PM
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you cant go off his numbers Im not saying your wrong

The truck should NOT have a SPREAD ect vs eot after COLD SOAK first thing in the morning

can you pull up IAT and TFT and see what those are in the morning

look in the coolant bottle for oil and keep an eye on it till you get it figured out

EOT,ECT,TFT all should be within a degree or two after cold soak
IAT should be close but can be off a little because its not a fluid

my ECT and EOT were within 1.5 degree this morning according to SGII

If you had egr cooler failure and they didnt replace the oil cooler at the same time the new EGR cooler will fail
egr cooler fail;ure is usually caused by a plugged oil cooler its a cascade of failure
 
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Old Jun 20, 2011 | 08:42 PM
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Old Jun 22, 2011 | 05:35 PM
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unfortunatley i cannot check iat and tft at the moment. the scanner i was using was needed by it's owner. going to order either edge insight or auto enginuity this weekend. soo far everything is still good. no oil in coolant, no coolant level change, and truck seems to be running the same. thanks to all who posted to try and help me figure this out. i will post an update when i get one or the other above mentioned installed.
 
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