ECT too low? - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 9 Old 04-22-2011, 08:12 PM Thread Starter
Powerstroke.org Fanatic
 
Join Date: Mar 2011
Posts: 123
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Question ECT too low?

I was driving tonite, 65mph (gps), cruise on, empty truck. My Scangauge showed ECT of 181-182*F, and it dipped to about 178F for a short while. Ambient temp was about 55F or so.
Is the T-stat gone? Do I need to replace it? If so, what temp T-stat should I get?
'06, Auto, 4x4
What happens if the ECT stays low?
Sorry for all the questions, again, newbie here.

'06, XLT, F350 FX4, Auto, Ext. Cab Short bed
Diamond Eye Turbo-back 4" exhaust.
CC Mod
Zoodad Mod
ELC swap
Coolant filter
Blue Spring upgrade
beemerbiker5 is offline  
post #2 of 9 Old 04-22-2011, 08:51 PM
Compression Ignition Addict
 
Join Date: Dec 2010
Posts: 295
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Sounds like the t-stat needs replaced. Should be a 192* i think. if you get it from ford it comes with the entire housing and costs about $40.

2013 Harley Davidson Street Glide, Midnight Pearl
Vance and Hines Big radius pipes
Power Commander V
Arlen Ness air cleaner

2005 F-250 SCSB Lariat FX4.
ARP Head Studs
EGR Delete
SCT X3 with IDP tunes.
Edge Insight CS w/ EGT probe
4" MBRP turbo back
Quick Tricks 58V FICM


cyclonestroker is offline  
post #3 of 9 Old 04-22-2011, 09:37 PM
Powerstroke Techie

 
Lilpooh's Avatar
 
Join Date: Aug 2010
Location: Sassamansville, Pa
Posts: 9,787
Thanks: 95
Thanked 195 Times in 157 Posts
Mentioned: 3 Post(s)
Quoted: 0 Post(s)
Feedback Score: 3 reviews
Like cyclone said, sounds like your stat is stuck.

2004 F350 CC DRW King Ranch
X-3 tunes by DJ'S,QT,GH,ID. Gryphon FICM tunes, ARP studs,Stage 1turbo,ATS coolant recirc lines,Swamp's 48v ficm,coolant filter,AD2,Snow Perf stage II,EGR delete,4" turbo back straight pipe,S&Bintake,Quad "A" pillar autometer gauges,Suncoast Tri Disk Conv.,Billet input shaft,Suncoast superduty rebuild kit,Trans-go shift kit,Mag-Hytec trans pan,CFM+ elbow,ccv mod,15K reese 5er,17" LCD TV/DVD,Cobra 29 Nitewatch CB
Lilpooh is offline  
post #4 of 9 Old 04-23-2011, 04:48 AM
Compression Ignition Addict
 
caissiel's Avatar
 
Join Date: Aug 2007
Location: New Brunswick, Canada
Posts: 777
Thanks: 1
Thanked 3 Times in 3 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
You will be glad to replace it and your local driving fuel mileage will improve enough to pay for the Thermostat.

Oil has to be at 180F for the turbo to stop heating the engine and the EGR valve to start closing, so the longer it takes the water to heat the oil the harder it is on fuel.

2005, 6.0L, 6 Spd Std, 3.73 Rear End, F250SD, Extended Cab, 4 x 4 Long Bed. 2008 extension mirrors. GPS/TV/DVD/CD/Rear Cam/Radio installed, Max Energy programer by Hypertech, and Fuel Pressure Gauge. ScanGaugeII for 60 plus XGauges, and MPG. ELC Cat EC-1 Coolant, Pull a 39ft 15500Lbs 5th Wheel Camper Trailer. Mileage Avg is 20MPG, and pulling 12.6MPG.
caissiel is offline  
post #5 of 9 Old 04-23-2011, 05:09 AM
Compression Ignition Addict
 
f350powerstroke's Avatar
 
Join Date: Jul 2007
Location: nj
Posts: 1,273
Thanks: 1
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by caissiel View Post
You will be glad to replace it and your local driving fuel mileage will improve enough to pay for the Thermostat.

Oil has to be at 180F for the turbo to stop heating the engine and the EGR valve to start closing, so the longer it takes the water to heat the oil the harder it is on fuel.
after my flush my ect goes from 190-195 highway driving and dips down to 186-189 in town. good or bad?

2007 f-350
SCT Street tune Innovative Diesel
4 inch straight pipe
Bypass coolant filter, ELC
Edge Insight CS
leveled 2.5
130k miles
Infowars.com
.
REAL TRUCKS DON'T HAVE SPARK PLUGS!

Are U Aware?
http://forum.bodybuilding.com/showth...post1084303723
f350powerstroke is offline  
post #6 of 9 Old 04-23-2011, 06:43 AM
FJuanfiddy mod


 
Dave's Avatar
 
Join Date: Nov 2006
Location: Trempealeau, WI
Posts: 31,836
Thanks: 132
Thanked 186 Times in 166 Posts
Mentioned: 1 Post(s)
Quoted: 9 Post(s)
Feedback Score: 0 reviews
Send a message via Yahoo to Dave
Factory Tstat partially opens at 182. So at 50 degrees seeing 180-184 isnt out of the ordinary

Email: Dave@powerstroke.org
2011 F150 Ecoboost Crew cab lariat. Custom tunes from KEM and 5Star, and Unleashed
2012 F150 Crew Cab Ecoboost stock for now-Totaled March 12 2015
2006 F250 ECSB Lariat 4x4

Leveling kit, 315/70/17 Kelly TSRs on Method race wheels
ARP studs and OEM gaskets done by Renegade Diesel
ECM and Atlas 40 FICM tuned by Bill at PHP SCT tunes by Truck Source Diesel. Gearhead, Innovative, Wildman and Tyrant diesel
Flowmaster/MBRP Hybrid Exhaust
Edge Insight CTS
Coolant filter
Bulletproof diesel FICM EGR Delete, Oil Cooler and Water Pump, and Light bar.
Dually LED lights from Stealth Automotive/Xpedition Outfitters
No Limit Fab 6.0 Cold Air Intake
http://www.bulletproofdiesel.com/default.asp
http://nolimitfabrication.com/
Dave is offline  
post #7 of 9 Old 04-23-2011, 06:58 AM Thread Starter
Powerstroke.org Fanatic
 
Join Date: Mar 2011
Posts: 123
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by Dave View Post
Factory Tstat partially opens at 182. So at 50 degrees seeing 180-184 isnt out of the ordinary
I think I will likely change the tstat, and do the coolant flush/change out at the same time. I figure it certainly won't hurt, can only help. Since getting the Scangauge, I don't remember seeing over about 182, so I have my doubts that it is working correctly. When I reviewed the Scangauge, it gives a max *F for ECT, and it read 186, never saw that so it must have only blipped by.

Thanks for the input, guys.


Just read another post pointing out the high frequency of failed oil coolers after the coolant flush and change. Should I just change the oil cooler, too or hope it doesn't happen to me? Sounds like the flush is what brings about an early demise of the oil cooler. Is Restore the Grim Reaper of oil coolers?

'06, XLT, F350 FX4, Auto, Ext. Cab Short bed
Diamond Eye Turbo-back 4" exhaust.
CC Mod
Zoodad Mod
ELC swap
Coolant filter
Blue Spring upgrade

Last edited by beemerbiker5; 04-23-2011 at 07:15 AM.
beemerbiker5 is offline  
post #8 of 9 Old 04-23-2011, 08:16 AM Thread Starter
Powerstroke.org Fanatic
 
Join Date: Mar 2011
Posts: 123
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by caissiel View Post
You will be glad to replace it and your local driving fuel mileage will improve enough to pay for the Thermostat.

Oil has to be at 180F for the turbo to stop heating the engine and the EGR valve to start closing, so the longer it takes the water to heat the oil the harder it is on fuel.
When the ECT was running 181-182, the EOT was running about 190-191. Does this mean that the engine didn't warm up completely? I drove about 80 miles, all hiway during this run.

'06, XLT, F350 FX4, Auto, Ext. Cab Short bed
Diamond Eye Turbo-back 4" exhaust.
CC Mod
Zoodad Mod
ELC swap
Coolant filter
Blue Spring upgrade
beemerbiker5 is offline  
post #9 of 9 Old 04-23-2011, 09:30 AM
Banned
 
Join Date: Feb 2011
Posts: 29
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
This could be a sign of your oil cooler plugging.
Smut is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome