Trouble code PO299 Turbo charger underboost - Ford Truck Enthusiasts Forums



6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Trouble code PO299 Turbo charger underboost

Reply
 
 
 
Thread Tools Search this Thread
  #1  
Old 08-03-2009, 09:18 PM
Jim83's Avatar
Jim83 Jim83 is offline
Senior User
Thread Starter
 
Join Date: Feb 2007
Posts: 103
Jim83 is starting off with a positive reputation.
Unhappy Trouble code PO299 Turbo charger underboost

What does this mean???

i have 60000 miles on it, no real problems so far but i noticed it had less power then usual and ran my superchips scanner and this is what i found.
Trouble code PO299 which means turbocharger underboost when i look it up.

Thanks
~jim
Reply With Quote
  #2  
Old 08-03-2009, 09:21 PM
jboczar jboczar is offline
Senior User
 
Join Date: May 2009
Location: Clearwater
Posts: 311
jboczar has a good reputation on FTE.jboczar has a good reputation on FTE.
Can actually mean under/overboost, so many things can be cause this:

Fuel Pressure
High Pressure oil concern
Turbocharger
Exhaust Leak
Egr valve
Air intake restriction
VGT Actuator

What year truck and how many miles? Checking egr valve is always a good easy place to start. 2 8mm bolts, turn sideways, pry up on tabs.
Reply With Quote
  #3  
Old 08-03-2009, 09:34 PM
Jim83's Avatar
Jim83 Jim83 is offline
Senior User
Thread Starter
 
Join Date: Feb 2007
Posts: 103
Jim83 is starting off with a positive reputation.
justa had the egr replaced.
but i did have to change the fuelfilter today because they were so clogged up. that is prbly why it set the code off
my trck is a late 04

thanks for the quick reply
Reply With Quote
  #4  
Old 08-04-2009, 12:04 AM
3000 FPS's Avatar
3000 FPS 3000 FPS is offline
Elder User
 
Join Date: Sep 2007
Location: S CAL
Posts: 803
3000 FPS is gaining momentum as a positive member of FTE.
In most cases where this code shows up it is because the vains in the turbo are starting to stick. Like jboczar says it can be an overboost or an under boost. Your truck is a 2004 which means there is no boost gauge. You may consider putting one in.
Reply With Quote
  #5  
Old 08-04-2009, 03:40 AM
dc3655 dc3655 is offline
Elder User
 
Join Date: Jun 2005
Location: Fallon,NV
Posts: 710
dc3655 is starting off with a positive reputation.
When my friend had this code pop up on his 04 Excursion last year, the dealership replaced the entire turbo. Now that you're probably out of warranty, hopefully it's something more simple and you can get away with just cleaning the veins of the turbo to save some cash.
Reply With Quote
  #6  
Old 08-04-2009, 06:41 AM
bismic's Avatar
bismic bismic is offline
Post Fiend
 
Join Date: Nov 2003
Posts: 15,608
bismic has a superb reputationbismic has a superb reputationbismic has a superb reputationbismic has a superb reputationbismic has a superb reputationbismic has a superb reputationbismic has a superb reputationbismic has a superb reputationbismic has a superb reputationbismic has a superb reputationbismic has a superb reputation
Quote:
Originally Posted by Jim83 View Post
justa had the egr replaced.
but i did have to change the fuelfilter today because they were so clogged up. that is prbly why it set the code off
my trck is a late 04

thanks for the quick reply
If you run your fuel filters until they clog up, then you will have injector problems. No ifs, buts, or maybes. Low fuel pressure KILLS the injectors. When you have even one fuel injector operating poorly, you will get more soot generated. This can increase the chance of clogging up turbos, EGR systems, and sensors.
Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Intermittent code 299 fellro86 Crossovers 0 07-23-2016 12:25 PM
6.0 power stroke cylinder 3 and cylinder 8 contribution balance Jim McGuire 6.0L Power Stroke Diesel 0 03-26-2016 04:14 PM
code po299 HELP rollingthunder77 6.0L Power Stroke Diesel 7 04-12-2015 06:13 PM
check engine light goes on under load???? drunkenrich 1987 - 1996 F150 & Larger F-Series Trucks 7 02-01-2014 10:01 PM
Look SuperSnake North Carolina Chapter 17 08-02-2006 11:27 AM


Go Back   Ford Truck Enthusiasts Forums >

Tags
2009, 299, 60, code, diesel, engine, f250, ford, po, po299, scanner, trouble, turbo, turbocharger, underboost

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Forum Jump


All times are GMT -5. The time now is 03:48 PM.