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

Boost problem *** UPDATE ***

Thread Tools
 
Search this Thread
 
Old Feb 24, 2017 | 09:22 AM
  #91  
Will Bite's Avatar
Will Bite
Thread Starter
|
Elder User
Joined: May 2010
Posts: 691
Likes: 0
From: Ohio
EGTs are also higher than before. Just started watching them this morning. At 60mph I would see 580-600 now I'm seeing 750-800. I drive the same stretch of road every day. 20 miles each way most are straight flat. So I remember what boost the truck runs, EGT temp, oil temp,coolant temp and what point on my trip that my truck hits operating temp. I noticed the first day when something was off. I was told that low fuel pressure would cause boost to drop off. Any chance thats the cause. The only check engine light I get is one for low flow on the egr.
 
Reply
Old Feb 24, 2017 | 09:24 AM
  #92  
WatsonR's Avatar
WatsonR
Lead Driver
Joined: May 2014
Posts: 6,545
Likes: 13
From: Virginia Beach VA
But the data shows it hit more than 20psi. Several times in the video it showed 24 and 25 psi and the data showed the same thing, more than 20psi several times. My truck only holds the high boost for a few seconds and then starts to drop fast.

Have you tried the tune since replacing the turbo?
Was the 28psi before doing an EGR delete?
You should really never see 15% VGT, 20% is more like it.

I wished we lived closer together!
 
Reply
Old Feb 24, 2017 | 09:28 AM
  #93  
navistarnut's Avatar
navistarnut
Postmaster
Joined: Aug 2015
Posts: 3,910
Likes: 18
From: NW IA
Originally Posted by Will Bite
EGTs are also higher than before. Just started watching them this morning. At 60mph I would see 580-600 now I'm seeing 750-800. I drive the same stretch of road every day. 20 miles each way most are straight flat. So I remember what boost the truck runs, EGT temp, oil temp,coolant temp and what point on my trip that my truck hits operating temp. I noticed the first day when something was off. I was told that low fuel pressure would cause boost to drop off. Any chance thats the cause. The only check engine light I get is one for low flow on the egr.
These higher EGT's you noticed after the new turbo, correct?
As Randy mentioned being deleted, often guys post lower boost numbers. I can't hold 26every long, and 24 to 25 is more common WOT.

I don't know low fuel pressure is the issue, unless the pressure is so low you are starving the engine and if that is the case you have other issues which don't appear to even be an issue.
 
Reply
Old Feb 24, 2017 | 09:28 AM
  #94  
WatsonR's Avatar
WatsonR
Lead Driver
Joined: May 2014
Posts: 6,545
Likes: 13
From: Virginia Beach VA
Originally Posted by Will Bite
EGTs are also higher than before. Just started watching them this morning. At 60mph I would see 580-600 now I'm seeing 750-800. I drive the same stretch of road every day. 20 miles each way most are straight flat. So I remember what boost the truck runs, EGT temp, oil temp,coolant temp and what point on my trip that my truck hits operating temp. I noticed the first day when something was off. I was told that low fuel pressure would cause boost to drop off. Any chance thats the cause.
Have you checked the pressure? I don't think that would cause it, boost is air flow. I will say that higher EGTs are a sign of more fuel or un-burned fuel. Which turbo did you buy, stock?
 
Reply
Old Feb 24, 2017 | 09:29 AM
  #95  
Will Bite's Avatar
Will Bite
Thread Starter
|
Elder User
Joined: May 2010
Posts: 691
Likes: 0
From: Ohio
Originally Posted by WatsonR
But the data shows it hit more than 20psi. Several times in the video it showed 24 and 25 psi and the data showed the same thing, more than 20psi several times. My truck only holds the high boost for a few seconds and then starts to drop fast.

Have you tried the tune since replacing the turbo?
Was the 28psi before doing an EGR delete?
You should really never see 15% VGT, 20% is more like it.

I wished we lived closer together!
With the tune it runs the same gutless. The EGR was replaced when it was studded 7 years ago.Been running Matt's tow tune since. Still hits 20 psi now tuned.Before the problems started it would hit 28psi.
 
Reply
Old Feb 24, 2017 | 09:31 AM
  #96  
Will Bite's Avatar
Will Bite
Thread Starter
|
Elder User
Joined: May 2010
Posts: 691
Likes: 0
From: Ohio
Turbo is a stock NEW Garrett not a rebuilt one.
 
Reply
Old Feb 24, 2017 | 09:37 AM
  #97  
Will Bite's Avatar
Will Bite
Thread Starter
|
Elder User
Joined: May 2010
Posts: 691
Likes: 0
From: Ohio
Fuel minus boost would be higher EGT. Would explain my problem right. So when my boost drops off the fuel is still there.
 
Reply
Old Feb 24, 2017 | 09:43 AM
  #98  
Will Bite's Avatar
Will Bite
Thread Starter
|
Elder User
Joined: May 2010
Posts: 691
Likes: 0
From: Ohio
So if I'm stock tuned and hitting 38 psi I should be getting a code and I'm not never had any codes on the truck except one for EBP( and I had a thread on here about that) a couple years ago and one for EGR low flow every time I run stock.
 
Reply
FTE Stories

Ford Trucks for Ford Truck Enthusiasts

story-0

Top 10 Fords at 2026 Carlisle Ford Nationals

 Joe Kucinski
story-1

3 Best / 3 Worst Parts of Modern Ford Ownership

 Brett Foote
story-2

10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

 Pouria Savadkouei
story-3

Every 2026 Ford Engine Explained

 Brett Foote
story-4

10 Ugly Ford Trucks That We Still Kinda Love

 Joe Kucinski
story-5

10 Things Every Truck Owner NEEDS (2026 Edition)

 Michael S. Palmer
story-6

Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

 Verdad Gallardo
story-7

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

 Joe Kucinski
story-8

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

 Brett Foote
story-9

Top 10 Ford Truck Tragedies

 Joe Kucinski
Old Feb 24, 2017 | 10:03 AM
  #99  
WatsonR's Avatar
WatsonR
Lead Driver
Joined: May 2014
Posts: 6,545
Likes: 13
From: Virginia Beach VA
But the code won't come until you meet the perimeters for it... +/- 4 pounds and for more than 5 seconds.

Are you blue spring installed? Is the EGR plugged in to the harness or gone completely?
 
Reply
Old Feb 24, 2017 | 10:05 AM
  #100  
Will Bite's Avatar
Will Bite
Thread Starter
|
Elder User
Joined: May 2010
Posts: 691
Likes: 0
From: Ohio
Originally Posted by WatsonR
But the code won't come until you meet the perimeters for it... +/- 4 pounds and for more than 5 seconds.

Are you blue spring installed? Is the EGR plugged in to the harness or gone completely?
yes on the blue spring. EGR plugged in. Cooler is gone
 
Reply
Old Feb 24, 2017 | 11:08 AM
  #101  
Bumblebee04's Avatar
Bumblebee04
Senior User
5 Year Member
Joined: Jan 2017
Posts: 428
Likes: 2
From: Central Illinois
Deep in the weeds on this one!

Noticed Randy's comment about TorquePros communication speed. Doubt this will make a difference but may help data logging if you don't have this option checked already. May not work with some Bluetooth adapters. Hope it'll help this head scratcher!


.
 
Reply
Old Feb 24, 2017 | 11:09 AM
  #102  
Will Bite's Avatar
Will Bite
Thread Starter
|
Elder User
Joined: May 2010
Posts: 691
Likes: 0
From: Ohio
Originally Posted by Bumblebee04
Deep in the weeds on this one!

Noticed Randy's comment about TorquePros communication speed. Doubt this will make a difference but may help data logging if you don't have this option checked already. May not work with some Bluetooth adapters. Hope it'll help this head scratcher!


.
Thanks. Already have it on. Lol
 
Reply
Old Feb 24, 2017 | 11:24 AM
  #103  
Yahiko's Avatar
Yahiko
Fleet Owner
10 Year Member
Liked
Loved
Community Favorite
Joined: Apr 2012
Posts: 27,307
Likes: 549
From: Spanaway
I think somewhere back in the thread you said yes or no to Kat and muffler being gone?
If not you could try a "test" pipe for the kat to see if it's plugged up. Also no mater if
you do or don't. How is the exhaust pipe looking ie dents or crushed spots or something stuck in the pipe?
 
Reply
Old Feb 24, 2017 | 11:25 AM
  #104  
Will Bite's Avatar
Will Bite
Thread Starter
|
Elder User
Joined: May 2010
Posts: 691
Likes: 0
From: Ohio
Originally Posted by Yahiko
I think somewhere back in the thread you said yes or no to Kat and muffler being gone?
If not you could try a "test" pipe for the kat to see if it's plugged up. Also no mater if
you do or don't. How is the exhaust pipe looking ie dents or crushed spots or something stuck in the pipe?
No cat no muffler no dents.
 
Reply
Old Feb 24, 2017 | 11:47 AM
  #105  
WatsonR's Avatar
WatsonR
Lead Driver
Joined: May 2014
Posts: 6,545
Likes: 13
From: Virginia Beach VA
4" down pipe or 3.5"?
 
Reply



All times are GMT -5. The time now is 08:04 AM.

story-0
Top 10 Fords at 2026 Carlisle Ford Nationals

Slideshow: Top 10 Fords at 2026 Ford Nationals

By Joe Kucinski | 2026-06-09 11:10:08


VIEW MORE
story-1
3 Best / 3 Worst Parts of Modern Ford Ownership

Based on years of owning multiple modern Ford products.

By Brett Foote | 2026-06-09 10:53:36


VIEW MORE
story-2
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches

SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.

By Pouria Savadkouei | 2026-06-08 18:50:34


VIEW MORE
story-3
Every 2026 Ford Engine Explained

Here's everything you need to know about every Ford engine available for the 2026 model year.

By Brett Foote | 2026-06-05 12:58:01


VIEW MORE
story-4
10 Ugly Ford Trucks That We Still Kinda Love

Slideshow: 10 ugly Ford trucks that we still kinda love.

By Joe Kucinski | 2026-06-03 09:51:16


VIEW MORE
story-5
10 Things Every Truck Owner NEEDS (2026 Edition)

Slideshow: the best gifts for dads & grads

By Michael S. Palmer | 2026-06-03 15:43:58


VIEW MORE
story-6
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath

Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.

By Verdad Gallardo | 2026-06-03 11:38:36


VIEW MORE
story-7
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.

By Joe Kucinski | 2026-05-27 16:24:34


VIEW MORE
story-8
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Here's everything that has changed for the latest model year.

By Brett Foote | 2026-05-27 16:17:28


VIEW MORE
story-9
Top 10 Ford Truck Tragedies

Slideshow: Top 10 Ford truck tragedies.

By Joe Kucinski | 2026-05-18 19:34:33


VIEW MORE