Reply
 
Thread Tools Display Modes
 
Old 01-27-2020, 10:51 AM   #1
Member
 
Join Date: Sep 2019
Posts: 73
6.0 performance

I purchased a 2006 e350 with 145,000 miles. A mechanic pre-purchase inspection said healthy engine. Invoice shows work done in 2013 to the tune of $5000US but did not list the items replaced. Heads studs where replaced (visible), and apparently a new oil cooler, EGR delete, dummy plugs, and fuel tubes? It was done by a H&H Diesel Performance whose phone seems to be out of service, so no way to talk to mechanic.

I just drove Flagstaaf to Dallas and the engine sounded and ran great. I was able to drive long stretches to test oil cooling at speed over a half hour test period for each speed and recorded the following:

Mph EOT ECT
75 201 191
70 197 188
65 195 188
60 195 186
60 208 198 On a 1/2 uphill grade

FICM 48.5-49

From what I have researched, this looks within specs, but just talked to a certified bulletproof diesel shop (through bulletproofdiesel.com) and they say EOT-ECT should be within 7-8 degrees of each other. Also said if fan clutch is running all the time that is a problem, but did not notice if fan clutch was running a lot.

Any comments here on if I should put in a new oil cooler? Seems good to me as is.
__________________

Belize is offline   Reply With Quote
Old 01-27-2020, 01:29 PM   #2
Senior Member
 
carringb's Avatar
 
Join Date: Jan 2009
Location: Corvallis, OR
Posts: 4,428
It's a little high on the delta, but I'd probably just keep an eye on it, and see if it gets any worse before changing anything.

It's consistent, rather than becoming a larger delta with more load, so that's good. Some of your delta may just be sender variation, which is why I get more concerned with the delta increases with load.
__________________

__________________
2000 E450 dually V10 wagon
carringb is offline   Reply With Quote
Old 01-27-2020, 01:33 PM   #3
Member
 
Join Date: Sep 2019
Posts: 73
Someone mentioned an oil cooler backflush. First time hearing about that. Is that a complicated operation, and something that might help?
Belize is offline   Reply With Quote
Old 01-27-2020, 02:48 PM   #4
Senior Member
 
WhitH's Avatar
 
Join Date: Sep 2013
Location: Eugene, Oregon
Posts: 858
Agree with Carringb (although he's going to know way more than me anyway so...) and I'd add that you would know if the fan was coming or not. Its unmistakable, sounds like a prop plane fired up under your hood.
__________________
2015 Chevy Express 3500 Duramax
w/ Quigley 4x4 & Agile Fox shocks
Sold 2005 E350 Chateau
Quigley with Agile RIP, 6.0 PSD
WhitH is offline   Reply With Quote
Old 01-27-2020, 03:57 PM   #5
Senior Member
 
carringb's Avatar
 
Join Date: Jan 2009
Location: Corvallis, OR
Posts: 4,428
A cooler back-flush can *sometimes* help if its plugged. But I would not expect your new cooler to plug up so fast after being replaced, unless they mixed incompatible coolants and silicates are dropping out... But key to me that there's a problem, is that the difference gets larger with load. Yours isn't.

As for the fan clutch... It's rare they stick on. I think what he meant is that an always-running fan is a sign of excess engine-bay heat. Climbing in the summer, I'd expect it to run. This time of year, not so much.

Much more likely is that it just fails. In which case, you'll see ECTs over 230 and NO fan roaring.
__________________
2000 E450 dually V10 wagon
carringb is offline   Reply With Quote
Old 01-27-2020, 04:00 PM   #6
Senior Member
 
Twoxentrix's Avatar
 
Join Date: Mar 2015
Location: Annapolis, Maryland
Posts: 1,240
Garage
Those Temps look good to me!
I have a 2006 (12K lbs loaded/ running 4:56 and 35's) and put in an entirely new engine 3 1/2 years ago (fully BP'd, aluminum radiator, all new hoses, etc). I have always had a delta around 11. First 2 years avg ECT 207 and EOT 218 doing 70mph - under loads both would go up 10-11 degrees.

Felt my averages were higher than normal which always concerned me, so I replaced the fan clutch again and installed a Mishimoto low temp thermostat...also added a 5Star tune that engaged the fan earlier. Now my average temps run about 11 degrees lower than what I had, but delta remains around 9 (fan only starts to kick in when ECT gets around 207-208).

I've been to numerous Diesel Performance shops, several Ford Dealers, and lots of time on the Internet...The new tolerance seems to be comfortable with up to a 14-15 degree variance for the Delta...lot has to do with what the engine is forced to contend with - EB or RB, Van weight, Gear ratio, Tire size. ***EDIT: admittedly, front Aluminess bumper doesnt help my situation.

As carringb mentioned, if you see the delta changing then I'd be concerned.
__________________
TwoXentrix
"AWOL"
Twoxentrix is offline   Reply With Quote
Old 01-27-2020, 04:25 PM   #7
Senior Member
 
Join Date: Jul 2011
Location: Flagstaff, AZ
Posts: 1,728
Guys, the delta difference between EOT and ECT is rather moot with an EGR delete.


Cooling fan should kick on in the low 220s and from those EOT temps it probably never did. Unless of course it was running the whole time but that sounds like a screaming banshee.
__________________
2005 E350 RB 6.0 PSD for extended fun
1989 Landcruiser FJ62 for local fun
2011 VW TDI Golf for hwy fun
JoeH is offline   Reply With Quote
Old 01-27-2020, 06:30 PM   #8
Member
 
Join Date: Sep 2019
Posts: 73
Engine never sounded loud, so I suspect even while climbing the fan never kicked in. Thanks for the feedback, I think all is well for now.
Belize is offline   Reply With Quote
Old 01-31-2020, 11:18 AM   #9
Site Team
 
BroncoHauler's Avatar
 
Join Date: May 2007
Location: Southern New Mexico
Posts: 9,073
I 'think' the Fan Speed Sensor command on a Scanguage reads the speed of the cooling fan (I don't know what other fan speed it would be sensing), so if you have a Scangauge you can program it to display that reading.

https://www.scangauge.com/xgauge/for...-speed-sensor/
https://www.scangauge.com/x-gauge-commands/6-0l-diesel/


Herb
__________________
SMB-less as of 02/04/2012. Our savings account is richer, but our adventures are poorer.
BroncoHauler is offline   Reply With Quote
Old 02-03-2020, 08:33 AM   #10
Member
 
Join Date: Feb 2018
Posts: 39
Runs cooler than mine...

Although my deltas are closer together.

Anything over 65 mph and my fuel mileage takes a dump!

If I suspected my oil cooler is compromised, I'll definitely be installing an external oil cooler. Given the OEM location of the Van's oil filter I wouldn't think the modification would be overly complicated.
Attached Thumbnails
Screenshot_20200113-142746_Torque.jpg  
__________________

wild-kiwi is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Sportsmobile SIP or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 09:47 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×