Replaced everything still only 8-10 psi boost - Ford Powerstroke Diesel Forum
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post #1 of 21 Old 07-17-2012, 04:17 PM Thread Starter
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Replaced everything still only 8-10 psi boost

I got a buddies truck I cant get figured out. It is a 2006 f250 with 6.0!

He bought it and it needed an FICM right off the bat! We replaced that and it runs great up till about 8 lb of boost. Then if you nail on it will actually start blowing black smoke and loosing boost. If you drive it like grandma it does great till it needs more than 8-10 lbs and then it is like you hit a rev limiter and it just stays where its at. RPM's will go up and down as you nail it, but the boost never kicks in. Need some help!!!!!!!!

Replaced Items:
MAP Sensor
MAP Sensor hose
EBP Sensor and cleaned tube
MAF Sensor
MAF Sensor to Intake hose
VGT Solenoid
Took turbo apart and cleaned it up good
Took batteries loose and let the computer reset
Replaced boots with good ones off my truck.
No Exhaust leaks. We have checked 20 times. Everywhere.

Been messing with it all day. And still cant get it to do anything. We may end up taking the turbo off of another truck and swapping into this on, but man that is alot of work for it to be something else.

PLEASE HELP!

2004 F250 CC SB
SCT Xcal2 SPD+ Lonney Wild Track
ARP Studs
PHP FICM Tuner
2003 Turbo
Coolant Filter
EGR Delete
4" Magnaflow
Airaid Intake
Zoodad
Blue Spring
6.4 Banjo's
CAT EC-1
Custom Camo Seat covers http://www.camotruckseats.com
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post #2 of 21 Old 07-17-2012, 04:25 PM
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If there isn't any soot on the firewall, I.E. up pipe leak then only thing left is something wrong with the Turbo.

Save yourself a lot of trouble and leave the back 3rd bolt out.

D
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post #3 of 21 Old 07-17-2012, 04:39 PM Thread Starter
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Yeah we have checked every joint on this thing 20 times! No leaks at all! Just hits 8-10 and motor wise it runs good after that, just with not alot of boost!

2004 F250 CC SB
SCT Xcal2 SPD+ Lonney Wild Track
ARP Studs
PHP FICM Tuner
2003 Turbo
Coolant Filter
EGR Delete
4" Magnaflow
Airaid Intake
Zoodad
Blue Spring
6.4 Banjo's
CAT EC-1
Custom Camo Seat covers http://www.camotruckseats.com
/
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post #4 of 21 Old 07-17-2012, 05:26 PM
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Is it tuned or stock?
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post #5 of 21 Old 07-17-2012, 05:32 PM Thread Starter
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Stock truck

2004 F250 CC SB
SCT Xcal2 SPD+ Lonney Wild Track
ARP Studs
PHP FICM Tuner
2003 Turbo
Coolant Filter
EGR Delete
4" Magnaflow
Airaid Intake
Zoodad
Blue Spring
6.4 Banjo's
CAT EC-1
Custom Camo Seat covers http://www.camotruckseats.com
/
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post #6 of 21 Old 07-17-2012, 05:56 PM
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What are you using to measure Boost?

Stock gauge? ScanGaugeII or controller.

If you say it runs Ok after that then something with how you're reading boost is awry cause no truck runs Ok on just 8-10 PSI boost.

D
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post #7 of 21 Old 07-17-2012, 06:03 PM Thread Starter
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Using stock gauge and Snap-On scanner!

Runs great until it hits 8-10 psi! But when it hits it, noe more boost all motor! will run up to 3500 RPM's, just alot weaker on power since there is no more boost!

I guess I am trying to say motor runs great, but no boost!

2004 F250 CC SB
SCT Xcal2 SPD+ Lonney Wild Track
ARP Studs
PHP FICM Tuner
2003 Turbo
Coolant Filter
EGR Delete
4" Magnaflow
Airaid Intake
Zoodad
Blue Spring
6.4 Banjo's
CAT EC-1
Custom Camo Seat covers http://www.camotruckseats.com
/
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post #8 of 21 Old 07-17-2012, 06:30 PM
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Did you check the cold side plastic charge pipe, might be a crack your not seeing and it's seperating under pressure.

Chad

2003 6leaker
N.E.W 2.5 Truck
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post #9 of 21 Old 07-17-2012, 06:35 PM Thread Starter
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Quote:
Originally Posted by snopro_03 View Post
Did you check the cold side plastic charge pipe, might be a crack your not seeing and it's seperating under pressure.
I thought the same thing , after using the search function! Pulled it off and it looks good! Checked it out good!

2004 F250 CC SB
SCT Xcal2 SPD+ Lonney Wild Track
ARP Studs
PHP FICM Tuner
2003 Turbo
Coolant Filter
EGR Delete
4" Magnaflow
Airaid Intake
Zoodad
Blue Spring
6.4 Banjo's
CAT EC-1
Custom Camo Seat covers http://www.camotruckseats.com
/
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post #10 of 21 Old 07-17-2012, 06:44 PM
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It sounds like a worn unison ring in the turbo. What did the hole look like? Was it an elliptical shape or was it wallered out?


Sent from my iPad using AG Free

Shawn Carlson
EvilEye@powerstroke.org

Proud Navy Vet
2005 F250, CCSB, 6.0 PSD, FX4 (The Sweet Unit is white)
2008 F350, CCLB, 6.4 PSD (Brad-the wife's truck is black)




Engine Mods:
Fluidampr
CCV Reroute (Reinstated)
4" MBRP Exhaust
MTW Stage 1 Turbo
Bulletproof 53V FICM
BulletProof EGR Cooler
BulletProof Water Pump
Riff Raff Intercooler Boots
Gogo Diesel Direct Drive Solenoid
BulletProof All-Aluminum Radiator
BulletProof All-Aluminum Intercooler
BulletProof Oil Cooler System w/ Bypass Filter
SCT w/ Custom Tunes (TSD, DJ's, Innovative, Gearhead, QuickTricks)

Exterior Mods:
Bilstein 5100 Shocks
Icon Adjustable Trac Bar
Firestone RideRite Air Bags
BDS Dual Steering Stabilizer
Aluminum Finned Differential Cover
Reese 16k Manual Slider 5th Wheel Hitch
Icon 2.5" Leveling Kit w/ F-350 rear blocks
20" BMF Novakanes wrapped in 33" Nitto Terra Grapplers
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