Go Back   Ford Truck Enthusiasts Forums > Diesel > 6.4L Power Stroke Diesel
Sign in using an external account
Register Forgot Password?


6.4L Power Stroke Diesel Engine fitted to 2008 - 2010 F250, F350 and F450 pickup trucks and F350 + Cab Chassis SPONSORED BY:

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 06-03-2011, 09:50 PM
Thermo2008 Thermo2008 is offline
New User
 
Join Date: Jun 2011
Posts: 24
Thermo2008 is starting off with a positive reputation.
Reduced engine power 6.4 psd

Was test driving a truck to buy today and was getting on freeway going 75 about a mile down the road reduced engine power and wrench light came on not a good way to start a test drive any ideas truck ran well until that point. 37000 miles still under eng warranty just a little Leary they cannot check out until mon morning
Reply With Quote
  #2 (permalink)  
Old 06-03-2011, 09:54 PM
powerstroke72's Avatar
powerstroke72 powerstroke72 is offline
Super Moderator
 
Join Date: Oct 2005
Location: SW Virginia
Posts: 23,361
powerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputationpowerstroke72 has a superb reputation
Moved to the 6.4L Powerstroke Diesel forum.
__________________
John
2013 Jeep Wrangler Unlimited Rubicon 10th Anniversary Edition, Black / Black Leather
2013 Ford Taurus SHO, Tuxedo Black / Black Leather
2011 F-350 4x4 Lariat Ultimate, Oxford White / Pale Adobe 6.7L PSD 3.55 ELD / Gone but not forgotten.
Moderators, Guidelines, and How They are Enforced / FTE Forum Guidelines

RIP Paul / Hdslider.....you are truly missed.
Reply With Quote
  #3 (permalink)  
Old 06-04-2011, 06:12 AM
senix's Avatar
senix senix is offline
Moderator
 
Join Date: Aug 2008
Location: Frederick, MD
Posts: 19,305
senix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputation
Could be something as simple as a sensor. Bottom line is a fault was detected and it entered a safe mode to prevent further damage.
__________________
Scott-2013 F350 with a lot of tires.
2013 40' 4-slider stoneridge 5th wheel coming in at 15,400
http://www.ford-trucks.com/guidelines.html

Previous Truck 2008 F250 6.4 with lots of upgrades and a suspension upgrade from Torklift International StableLoads
Reply With Quote
  #4 (permalink)  
Old 06-04-2011, 09:35 AM
Tom's Avatar
Tom Tom is offline
Moderator
 
Join Date: Aug 2003
Location: Union, CT
Posts: 14,336
Tom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputation
TomB985
Hi Thermo, welcome to FTE!

Unfortunately things sometimes go wrong with engines as complex as these are, but for the most part they do pretty well. With as much engine warranty as there is left I wouldn't hesitate to buy it once the problem is corrected. Scott is probably correct in that it's likely a sensor problem.

Take a look around and also make sure to visit the TECH FOLDER found at the top of the 6.4L forum. Lots of great info to be found there that would be beneficial for you to know before you make the purchase.

Let us know if you get the truck, and be sure to post pics!
__________________
Tom,

Currently truckless.
Most recently: 2013 F150 XLT 4x4 EcoBoost
Moderators, Guidelines, and How They are Enforced
Reply With Quote
  #5 (permalink)  
Old 06-04-2011, 09:54 AM
Thermo2008 Thermo2008 is offline
New User
 
Join Date: Jun 2011
Posts: 24
Thermo2008 is starting off with a positive reputation.
Probabaly something simple. Really like the truck well just don't want it to be a cronic problem if I buy truck! Talked to sales person today and won't have a diesel tech until Monday morning to diagnose problem. I will send updates when I find out more. 2008 f250 Xlt 4x2 crew long bed.
Reply With Quote
  #6 (permalink)  
Old 06-06-2011, 09:15 PM
Thermo2008 Thermo2008 is offline
New User
 
Join Date: Jun 2011
Posts: 24
Thermo2008 is starting off with a positive reputation.
Talked to service dept today and they said 1 of the engine thermostats failed not sure which one I know there are two. And from what I have read they take 3 hrs book time. Could not pick up truck today.will tomorrow arranged to drive truck for a couple days before buying so I could check over and make sure no other problems.
Reply With Quote
  #7 (permalink)  
Old 06-06-2011, 09:25 PM
Tom's Avatar
Tom Tom is offline
Moderator
 
Join Date: Aug 2003
Location: Union, CT
Posts: 14,336
Tom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputation
TomB985
Glad to hear they found the problem! Did you notice what your temperature gauge read when it went to limp-home mode?
__________________
Tom,

Currently truckless.
Most recently: 2013 F150 XLT 4x4 EcoBoost
Moderators, Guidelines, and How They are Enforced
Reply With Quote
  #8 (permalink)  
Old 06-06-2011, 09:34 PM
Thermo2008 Thermo2008 is offline
New User
 
Join Date: Jun 2011
Posts: 24
Thermo2008 is starting off with a positive reputation.
Well I looked at it a couple times and showed normal. With the 2 t stats I wonder if 1 is for main coolant and one for egr system?
Reply With Quote
  #9 (permalink)  
Old 06-06-2011, 09:51 PM
Tom's Avatar
Tom Tom is offline
Moderator
 
Join Date: Aug 2003
Location: Union, CT
Posts: 14,336
Tom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputation
TomB985
Nope, there is only one cooling system on these engines. You're thinking of the 6.7L! .

There are two thermostats that control flow of coolant to the radiator, if one is stuck open I believe you'd be overcooling.
__________________
Tom,

Currently truckless.
Most recently: 2013 F150 XLT 4x4 EcoBoost
Moderators, Guidelines, and How They are Enforced
Reply With Quote
  #10 (permalink)  
Old 06-07-2011, 05:13 AM
senix's Avatar
senix senix is offline
Moderator
 
Join Date: Aug 2008
Location: Frederick, MD
Posts: 19,305
senix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputationsenix has a superb reputation
I suppose hyper extended was the issues. My temp guage will move just to the right of center at 220F.
__________________
Scott-2013 F350 with a lot of tires.
2013 40' 4-slider stoneridge 5th wheel coming in at 15,400
http://www.ford-trucks.com/guidelines.html

Previous Truck 2008 F250 6.4 with lots of upgrades and a suspension upgrade from Torklift International StableLoads
Reply With Quote
  #11 (permalink)  
Old 06-07-2011, 09:39 AM
wp6529 wp6529 is offline
Senior User
 
Join Date: Jan 2011
Posts: 454
wp6529 is gaining momentum as a positive member of FTE.wp6529 is gaining momentum as a positive member of FTE.
Quote:
Originally Posted by Crazy001 View Post
Nope, there is only one cooling system on these engines. You're thinking of the 6.7L! .
Actually there are two fully independent cooling systems on the 6.4. There is a separate system with a separate pump and radiator for the fuel cooler and variable turbo actuator.
Reply With Quote
  #12 (permalink)  
Old 06-07-2011, 11:52 AM
Tom's Avatar
Tom Tom is offline
Moderator
 
Join Date: Aug 2003
Location: Union, CT
Posts: 14,336
Tom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputationTom has a superb reputation
TomB985
Quote:
Originally Posted by wp6529 View Post
Actually there are two fully independent cooling systems on the 6.4. There is a separate system with a separate pump and radiator for the fuel cooler and variable turbo actuator.
Correct, but I do not believe there is a thermostat for that system.
__________________
Tom,

Currently truckless.
Most recently: 2013 F150 XLT 4x4 EcoBoost
Moderators, Guidelines, and How They are Enforced
Reply With Quote
  #13 (permalink)  
Old 06-08-2011, 09:50 PM
Thermo2008 Thermo2008 is offline
New User
 
Join Date: Jun 2011
Posts: 24
Thermo2008 is starting off with a positive reputation.
Well bought the truck

I bought the truck today. They let me drive it for a couple days. Great dealer ship seem very knowledgeable on diesels. Buckeye ford London Ohio. Rural dealer stocks a lot of diesels. Found no other problems hope it stays that way.hope to be a long time ford enthusiast!
Reply With Quote
  #14 (permalink)  
Old 06-11-2011, 07:39 PM
powerskull's Avatar
powerskull powerskull is offline
Freshman User
 
Join Date: Jan 2011
Posts: 46
powerskull is starting off with a positive reputation.
Congrats. I love mine and it pulls like nothing else.
Reply With Quote
  #15 (permalink)  
Old 06-11-2011, 07:50 PM
Thermo2008 Thermo2008 is offline
New User
 
Join Date: Jun 2011
Posts: 24
Thermo2008 is starting off with a positive reputation.
I am pulling my 30 ft Airstream wed and will put it through its paces.I pulled it before w/ my dad's 6.0 liter and that truck pulled it great.excited to see power.have driven it no load andhave never seen anything about dpf cleaning approx. 400 miles is this normal.I know it has latest software update.
Reply With Quote
Old 06-11-2011, 07:50 PM
Reply

Go Back   Ford Truck Enthusiasts Forums > Diesel > 6.4L Power Stroke Diesel

Tags
2008, 64, engin, engine, f250, f350, f450, ford, icon, light, low, message, power, powerstroke, reduced, warning, wrench

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump



All times are GMT -5. The time now is 04:46 AM.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup