What causes high Fuel Rail temp? - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

 
LinkBack Thread Tools Display Modes
post #1 of 10 Old 06-07-2010, 12:28 PM Thread Starter
Compression Ignition Addict
 
drservo's Avatar
 
Join Date: Feb 2009
Posts: 570
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
What causes high Fuel Rail temp?

Pulling 10k on 8% grades on the 210 perfomance tune and the 275TCM all is well except fuel rail temp. It hits 140-145 easily when pulling the grade. BTW I got 10 MPG on the 210 and 11 on the 275

08 F250 CC, 4x4, Blue/Pueblo Gold, 3.73, S & B CAI, 5" Magnaflo downpipe back, Spartan TCM 275 & 310 KEM 345 (SCT - Sold) Mickey Thompson 35 12.5 20's

drservo is offline  
post #2 of 10 Old 06-07-2010, 02:35 PM
Compression Ignition Addict


 
08stroker250's Avatar
 
Join Date: Dec 2008
Location: Georgia
Posts: 8,819
Thanks: 5
Thanked 16 Times in 15 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Usually the hotter your motor gets, the hotter your fuel will get. Normal driving, I see 108-112 typically in 80+ degree weather with high humidity. I don't tow, but I could see where it would get warm. Check your fuel cooler for coolant level. Its the little black "box" looking thing middle/drivers side on the back of the motor. It has a little gray cap on it.

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
08stroker250 is offline  
post #3 of 10 Old 06-08-2010, 05:12 AM Thread Starter
Compression Ignition Addict
 
drservo's Avatar
 
Join Date: Feb 2009
Posts: 570
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
What fuel rail temps is everyone seeing pulling a load?

08 F250 CC, 4x4, Blue/Pueblo Gold, 3.73, S & B CAI, 5" Magnaflo downpipe back, Spartan TCM 275 & 310 KEM 345 (SCT - Sold) Mickey Thompson 35 12.5 20's

drservo is offline  
post #4 of 10 Old 06-08-2010, 05:25 AM
Compression Ignition Addict
 
Join Date: Nov 2007
Location: Olive Branch, MS
Posts: 573
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
normal driving on the interstate I see 150ish........Ill have that checked over at the end of this month........
Spatel23 is offline  
post #5 of 10 Old 06-08-2010, 06:46 AM Thread Starter
Compression Ignition Addict
 
drservo's Avatar
 
Join Date: Feb 2009
Posts: 570
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
150ish on fuel rail temp? Thats no load? Did you just change the high warning on the dash daq and don't worry about it?

08 F250 CC, 4x4, Blue/Pueblo Gold, 3.73, S & B CAI, 5" Magnaflo downpipe back, Spartan TCM 275 & 310 KEM 345 (SCT - Sold) Mickey Thompson 35 12.5 20's

drservo is offline  
post #6 of 10 Old 06-08-2010, 09:30 AM
Compression Ignition Addict


 
08stroker250's Avatar
 
Join Date: Dec 2008
Location: Georgia
Posts: 8,819
Thanks: 5
Thanked 16 Times in 15 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by drservo View Post
150ish on fuel rail temp? Thats no load? Did you just change the high warning on the dash daq and don't worry about it?
Yea, he did. He has air in the fuel lines somewhere.

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
08stroker250 is offline  
post #7 of 10 Old 06-29-2010, 03:59 PM
Powerstroke.org Rookie
 
daddystoy's Avatar
 
Join Date: Apr 2009
Posts: 25
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I was seeing 128-144 EFT1 today drinving from San Diego to Las Vegas. It was 113 out and there are some wicked climbs from sea level to 5000' up 6% grade at 73MPH. Truck only has 3900 miles on it and it was unloaded. It's frustrating. What is the purpose of this anyway? Everyone seems to always be over the threshold of the DD yet no one seems to care. I am just wondering because I thought the truck was going to blow up when the alarm went off at 140. I changed mine to 160 at the recommednation of one of the vendors. BTW, what fluid goes into this fuel cooler? Does the tune really even effect this temp if you are just on cruise control?

2010 F250 CC, long bed, 4x4 Lariat with DPF/CAT delete and Spartan tuning, 2.5" leveling kit, 20x10 Fuel Kranks on Toyo AT II Xtremes.

2003 Harley Davidson Ultra Classic
daddystoy is offline  
post #8 of 10 Old 06-29-2010, 04:11 PM
Compression Ignition Addict


 
08stroker250's Avatar
 
Join Date: Dec 2008
Location: Georgia
Posts: 8,819
Thanks: 5
Thanked 16 Times in 15 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
The same fluid that goes in to the degas bottle. Do a coolant/water mix. I could see the temps getting that hot with the ambient temps being 113 and the motor working that hard. Did they ever get lower than that once the truck settled down some?

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
08stroker250 is offline  
post #9 of 10 Old 06-29-2010, 06:01 PM
Compression Ignition Addict
 
mdavis203's Avatar
 
Join Date: Mar 2010
Location: Nederland, TX
Posts: 244
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
It could be the fuel coolant pump gone out. That's what happened to me. Feel the fuel coolant radiator after you've been driving a while. It's the little one bolted onto the side of the intercooler. If it's not very warm to the touch, the pump's out.

"Did you see the size of that chicken?!?"

'08 F250 King Ranch: Spartanized! +250HP tune, AFE Stage II Cold Air Intake w/ PG7 Filter. Harley Headlights. Recon Mirror Lights, Tail Lights, and 3rd Brake Light.

mdavis203 is offline  
post #10 of 10 Old 06-30-2010, 07:01 AM
Powerstroke.org Rookie
 
daddystoy's Avatar
 
Join Date: Apr 2009
Posts: 25
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Thanks I will check the resevoir today. I am driving from Las Vegas to Salt Lake City and it will be 110 outside again. Is it just a coolant water mix that goes in there? Does it have to be the same coolant that’s in the radiator? Sorry for the silly ?'s but I have no idea where the degas (over flow reservoir) bottle is or what goes in it. Also, the temp goes down once I am on the road and seems to hover around 128-130'ish. The high temp's are seen after running hard and pulling off the highway for a food or bathroom break. That's when it hit 140-144 just sitting idling. It never went over 150. Does the tune effect that temperature? I can't see how it would since the truck is just cruising.

2010 F250 CC, long bed, 4x4 Lariat with DPF/CAT delete and Spartan tuning, 2.5" leveling kit, 20x10 Fuel Kranks on Toyo AT II Xtremes.

2003 Harley Davidson Ultra Classic
daddystoy 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