Question on engine temps while towing
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Logistics Pro
Joined: May 2004
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The reason for monitoring the delta is that when the oil cooler starts to clog the EGR cooler gets starved of coolant and begins to be at risk of failing. That's point one. Point two is, total coolant temp load is affected by all elements that put temperature into the engine. The EGR cooler is a large temp input to the total cooling load so deleting it removes that load and will make the engine run cooler easier. That means that under high loads, with resultant high EGT's, no EGR cooler will let the cooling system run far better and result in lower overall coolant temps that would otherwise be the case.
In your situation, commenting on the original point, your oil temps are too high at 250 degrees and you should slow down before they get that high. I suspect that with the EGR cooler delete you may have fouled up the engine fan strategy, based on what I've read here, but you don't mention the fan ramping up to high speed, and that is something that a SGII might be able to monitor for you. Your year of truck will not throw a wrench light (2005 and up and only with the latest flashes, which everyone seems to want to back-step) for high delta's, and may not have the same de-fueling strategy as the latest programming. Based on what I read in the original post, you are plain running too hot at the worst case, which can be the cooling system, the engine fan strategy, or just a hot day and a big load running too hard. Your basic performance is probably just fine. for comparison, when I tow a tall 10K trailer in decent hills at 90 degree plus ambient, my coolant rarely spikes over 220 and oil never goes over 225. As noted, one of the keys to oil cooler monitoring is recovery time, and your report suggests that the oil temp recovers quickly when the load is reduced, so that is the really good news.
Brian
In your situation, commenting on the original point, your oil temps are too high at 250 degrees and you should slow down before they get that high. I suspect that with the EGR cooler delete you may have fouled up the engine fan strategy, based on what I've read here, but you don't mention the fan ramping up to high speed, and that is something that a SGII might be able to monitor for you. Your year of truck will not throw a wrench light (2005 and up and only with the latest flashes, which everyone seems to want to back-step) for high delta's, and may not have the same de-fueling strategy as the latest programming. Based on what I read in the original post, you are plain running too hot at the worst case, which can be the cooling system, the engine fan strategy, or just a hot day and a big load running too hard. Your basic performance is probably just fine. for comparison, when I tow a tall 10K trailer in decent hills at 90 degree plus ambient, my coolant rarely spikes over 220 and oil never goes over 225. As noted, one of the keys to oil cooler monitoring is recovery time, and your report suggests that the oil temp recovers quickly when the load is reduced, so that is the really good news.
Brian
My trailer loaded is twice that so that might be a contributing factor.
I think I am going to replace it anyway, since the last time I was in there years ago I did not look into the HPOP screen *wasnt talked about much back then).
Thanks
Joe
Posting Guru
Joined: Jun 2012
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Well, if you are towing 20K you are probably about 5K over what the truck is rated to tow stock (mine is rated at 23,000 combined weight) so it's probably expected that it is going to over-heat if you run it that hard in that ambient temp.
Brian
Brian
Mountain Pass
Joined: May 2012
Posts: 199
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I just installed my ScanGauge and was driving all around town, freeway & local streets...
My ECT never got above 195 and EOT never got above 220
Is the reason for the lower ECT for me the new BP water pump I put on?
I have the new upgraded Ford OEM oil Pump recently installed also...
Alan from SD
My ECT never got above 195 and EOT never got above 220
Is the reason for the lower ECT for me the new BP water pump I put on?
I have the new upgraded Ford OEM oil Pump recently installed also...
Alan from SD
Hotshot
Joined: Jul 2005
Posts: 13,834
Likes: 25
From: Middle Tn.
I just installed my ScanGauge and was driving all around town, freeway & local streets...
My ECT never got above 195 and EOT never got above 220
Is the reason for the lower ECT for me the new BP water pump I put on?
I have the new upgraded Ford OEM oil Pump recently installed also...
Alan from SD
My ECT never got above 195 and EOT never got above 220
Is the reason for the lower ECT for me the new BP water pump I put on?
I have the new upgraded Ford OEM oil Pump recently installed also...
Alan from SD
Mountain Pass
Joined: May 2012
Posts: 199
Likes: 3
this is off ScanGauge... in Bismics tech folder he says that Tuner readings are higher than regular readings?? Trying to see what Mark thinks
Lead Driver
Joined: Oct 2010
Posts: 5,420
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From: Ouray, CO
After stiing for a day or so verify your ect, eot, and tft are within a degree or two of each other. You might have entered a typo into the x-gauge code and messed up the reading. 'Cause your temps would be ok If you were towing a trailer up hill.
Hotshot
Joined: Jul 2005
Posts: 13,834
Likes: 25
From: Middle Tn.
That's 23 degrees. That's a prime spread for a clogged oil cooler. If you took those readings properly your in dangerous territory for a rupture in your oil or egr coolers. Sounds like you need to change them both ASAP.
I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
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From: Central Oregon
He just recently had a new one in.
A tuner wont cause that spread when tested correctly.
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Mountain Pass
Joined: May 2012
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Ok I will recheck codes
I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
Likes: 27
From: Central Oregon
Also, if the Xgauges are correct, there also might be an issue with the sensor.
If it comes to that, the ECT and EOT sensors are the same. You can swap them and see how they read.
Mountain Pass
Joined: May 2012
Posts: 199
Likes: 3
OK... Never ask me to do any data entry for you guys! My MTH value I entered for the EOT was entered wrong!
Just did a drive on the freeway and my delta was never more than an 8 degree spread....
ECT was anywhere from 191-195 and EOT was anywhere from 194-199
All is well again with the world.... LOL
AmDriven.... you get a star !!!
Just did a drive on the freeway and my delta was never more than an 8 degree spread....
ECT was anywhere from 191-195 and EOT was anywhere from 194-199
All is well again with the world.... LOL
AmDriven.... you get a star !!!
I'm hitting easy street
Joined: Nov 2009
Posts: 6,395
Likes: 27
From: Central Oregon
DawnPatrol
All is well again with the world.... LOL
All is well again with the world.... LOL
And Misky6.0 was right on also!
BPofMD
PHEW!!!! That was a real cheap fix!
PHEW!!!! That was a real cheap fix!
Now to get back to the NRA 500.
Thread Starter
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Logistics Pro
Joined: May 2004
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Quick question- when I order the new oil cooler, is there a newer improved cooler part number out there or all new oil coolers the same?
Thanks for the help
Mountain Pass
Joined: May 2012
Posts: 199
Likes: 3
Yeah, it is a tad over for sure. On level ground after ect's get up to normal values it is always well within the normal ranges. I had my a/c on so that contributed to the load on the engine overall.
Quick question- when I order the new oil cooler, is there a newer improved cooler part number out there or all new oil coolers the same?
Thanks for the help
Quick question- when I order the new oil cooler, is there a newer improved cooler part number out there or all new oil coolers the same?
Thanks for the help
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