Go Back   Ford Truck Enthusiasts Forums > Super Duty/Heavy Duty > Super Duty & Heavy Duty
Sign in using an external account
Register Forgot Password?


Super Duty & Heavy Duty 1999 to current Ford F250, F350, F450 and F550 Super Duty with diesel V8 and gas V8 and V10 engines 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  
Old 06-24-2011, 08:39 PM
Stokedog Stokedog is offline
New User
 
Join Date: Jun 2011
Posts: 5
Stokedog is starting off with a positive reputation.
2008 6.4 Turbo problems??

I recently purchase a 2008 F-250 with a 6.4 powerstroke. The truck runs great except every now and then the turbo will not kick in and the truck has almost no power?

Any suggestions on what my problem is??
Reply With Quote
  #2  
Old 06-24-2011, 08:50 PM
senix's Avatar
senix senix is online now
Moderator
 
Join Date: Aug 2008
Location: Frederick, MD
Posts: 20,121
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
just based upon the vague discription I wonder if you are going thru a cleaning of the exhaust (regen) cycle? How far apart are these low power events?
__________________
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
  #3  
Old 06-24-2011, 09:18 PM
Stokedog Stokedog is offline
New User
 
Join Date: Jun 2011
Posts: 5
Stokedog is starting off with a positive reputation.
It is happening about every 20-30 miles. Seems to happen ecspecially in the city when slowing down and then back on the throttle to have no power. After pumping the pedal 3-4 times or pushing it all the way down all of a sudden the turbo boost comes back on and then back to normal.
Reply With Quote
  #4  
Old 06-24-2011, 10:27 PM
caprang's Avatar
caprang caprang is offline
Posting Guru
 
Join Date: Jan 2006
Posts: 1,471
caprang is gaining momentum as a positive member of FTE.
These engines have a serious lag or delay issue. Its in the programming due to the strict emissions requirements. From a dead stop if I give the truck anything more than 1/4 throttle it barely moves for about 2-4 seconds which seems like hours if trying to pull out in traffic. If I am slowing down and suddenly get back in it (again anything more than 1/4 throttle) the lag appears again.
I have found its not as bad when the engine isnt at operating temps yet. The more pedal you give it, the longer the delay.

If this is what you are experiencing its just the nature of the 6.4. Numerous complaints about it and I have been told by the dealer(s) that its normal. Actually they say they cant duplicate my concern, but take them for a ride and they recognize it but say its just normal.
__________________
2008 F350 CC 4x4
Harley Davidson 6.4 PSD Auto
Job #3 build, 2" leveling kit, rear air bags, smoked cab lights and mirror lenses
Reply With Quote
  #5  
Old 06-24-2011, 10:55 PM
Stokedog Stokedog is offline
New User
 
Join Date: Jun 2011
Posts: 5
Stokedog is starting off with a positive reputation.
I don't think it's lag. You could hold the pedal down for a solid 10-15 seconds and the turbo will never build up any pressure. Do that same thing 3-4 times then the turbo seems like it will kick in and start working again?????

Do you think it has something to do with the emission stuff or something?

I am new to these motors.
Reply With Quote
  #6  
Old 06-25-2011, 06:13 AM
senix's Avatar
senix senix is online now
Moderator
 
Join Date: Aug 2008
Location: Frederick, MD
Posts: 20,121
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 think this is something else other than turbo lag. Do you ever get a cleaning exhaust filter message at all?

Do you have the screen to where you can run the setup and see MTE, brakes ok, battery ok and then at the end if it is in regen, see the message?

Also last time for fuel filter change?
__________________
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
  #7  
Old 06-25-2011, 07:09 AM
Gearitis Gearitis is offline
Elder User
 
Join Date: Feb 2007
Location: Waco, Texas
Posts: 812
Gearitis is gaining momentum as a positive member of FTE.Gearitis is gaining momentum as a positive member of FTE.
[quote=senix;10500982]I think this is something else other than turbo lag. Do you ever get a cleaning exhaust filter message at all?

Do you have the screen to where you can run the setup and see MTE, brakes ok, battery ok and then at the end if it is in regen, see the message?

Also last time for fuel filter change?[/quote

This seems to be the right track, IMO. Filters, even if you or someone has changed them recently, I would do it again. I bought an early 08, and it seemed to have a bad lag, maybe not exactly the same time lag as the OP. I changed the fuel filters, replace with Motorcraft, and changed oil and used Motorcraft oil filter, drove it about 3K and did it again and the lag was far less noticable. Also, even thought the truck only had 25k on it, I put in a new Motorcraft Air Filter also, that seemed to help a lot also.
__________________
1929 Model A-Bone Roadster
2011 Escape XLT
2006 Mustang 4.0L Stock
2011 F-250 Lariat Stock
2003 Keystone Cougar 286 EFS 5er
Reply With Quote
  #8  
Old 06-25-2011, 09:11 AM
caprang's Avatar
caprang caprang is offline
Posting Guru
 
Join Date: Jan 2006
Posts: 1,471
caprang is gaining momentum as a positive member of FTE.
That sounds a lot more serious than the standard turbo lag. I have never seen it last 10-15 seconds.
I agree, you should start with the regular maintenance items as these trucks are really sensitive towards good maintenance. Be sure you replace BOTH fuel filters. As gearitis pointed out, do all the maintenance items so at least you know where you stand. When you buy used you either dont know or you are at the mercy of believing the person you purchased from.
Beyond that, look for trends. Is it weather related, temp of truck, long drives, short drives, anything you can pinpoint at all to establish a trend. Any smoke from the tailpipe? When was the last regen? etc.
__________________
2008 F350 CC 4x4
Harley Davidson 6.4 PSD Auto
Job #3 build, 2" leveling kit, rear air bags, smoked cab lights and mirror lenses
Reply With Quote
  #9  
Old 06-25-2011, 03:38 PM
Stokedog Stokedog is offline
New User
 
Join Date: Jun 2011
Posts: 5
Stokedog is starting off with a positive reputation.
I am not seeing anything about "exhaust filter cleaning or regen". I did have the warning come on to drain the water seperator so I did that and I also had my local shop put a new sensor on the water seperator. They were also supposed to put me 2 new fuel filters in but did not yesterday. I am going to take it back Monday and have them put 2 new fuel filters in and see if that helps.

I will let you know what happens after the 2 new fuel filters.
Reply With Quote
  #10  
Old 06-25-2011, 03:42 PM
senix's Avatar
senix senix is online now
Moderator
 
Join Date: Aug 2008
Location: Frederick, MD
Posts: 20,121
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
How about you go out right now and drain the water off the separator. What we want to know is does the fuel flow freely? If not then not only filters but it also needs cleaned out, not just a sensor.
__________________
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  
Old 06-25-2011, 04:45 PM
Stokedog Stokedog is offline
New User
 
Join Date: Jun 2011
Posts: 5
Stokedog is starting off with a positive reputation.
Ok, I drained the water seperator it took it about 2-3 minutes to drain off about 16 ounces. Then all of a sudden at 16 ounces it immediatley slowed down and then took about 8 more minutes to only drain off about 9 more ounces. So I drained off 25 ounces total.

How does that sound?
Reply With Quote
  #12  
Old 06-25-2011, 05:35 PM
senix's Avatar
senix senix is online now
Moderator
 
Join Date: Aug 2008
Location: Frederick, MD
Posts: 20,121
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
sounds like it is draining slow. So that means not only change the filters but inspect inside before putting new filters on.

Might want to consider a visit to the dealer for the kit for that cover where the yellow handle is.

You can take that cover off and clean in there as well once you get the kit.
__________________
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
Old 06-25-2011, 05:35 PM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Super Duty/Heavy Duty > Super Duty & Heavy Duty

Tags
08, 2008, 64, cleaning, codes, duty, exhaust, f250, failure, filter, ford, low, power, problems, sensor, super, turbo

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Weak AC fan in 2008 F-350 ASlacker Super Duty & Heavy Duty 3 08-01-2012 03:56 AM
2008 ford f250 Greg G Super Duty & Heavy Duty 28 03-05-2010 07:04 AM
advise needed about an '08 6.4 l SDFordlover 6.4L Power Stroke Diesel 41 05-27-2008 08:48 PM
2008 6.4L CC Truck road test. whalerron 6.4L Power Stroke Diesel 19 01-01-2007 05:08 PM
2008 superduty skidooman Manitoba / Saskatchewan Chapter 12 11-27-2006 08:37 AM



All times are GMT -5. The time now is 07:24 AM.


Powered by vBulletin® Version 3.8.7 AC1
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