Surging at WOT
Thread Starter
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Senior User
Joined: Nov 2002
Posts: 120
Likes: 0
From: cookeville us
Surging at WOT
While using preditor set on any hp setting truck surges violently when accelerating. When TCC is locked it feels like the motor is coming out of the truck. Truck makes plenty of power and turbo spools up good. Does anyone have a guess at what this is?
03
350
6.0
Auto
220,000 mls
Diablo Preditor
P.S. no problems when stock tune is installed.
03
350
6.0
Auto
220,000 mls
Diablo Preditor
P.S. no problems when stock tune is installed.
Postmaster
Joined: Dec 2003
Posts: 4,196
Likes: 10
From: Arizona
[QUOTE=briancooper][B]While using preditor set on any hp setting truck surges violently when accelerating.[/B] When TCC is locked it feels like the motor is coming out of the truck. Truck makes plenty of power and turbo spools up good. Does anyone have a guess at what this is?
03
350
6.0
Auto
220,000 mls
Diablo Preditor
P.S. no problems when stock tune is installed.[/QUOTE]
You answered your own question! The "PREDATOR" module is the problem. These are known to cause issues and engine & transmission problems with the 6.0. Do a search lots of info on the problems with the "Predator" and the 6.0.
Have you successfully run the Predator on this truck before? Has your truck been re-flashed by FMC?
03
350
6.0
Auto
220,000 mls
Diablo Preditor
P.S. no problems when stock tune is installed.[/QUOTE]
You answered your own question! The "PREDATOR" module is the problem. These are known to cause issues and engine & transmission problems with the 6.0. Do a search lots of info on the problems with the "Predator" and the 6.0.
Have you successfully run the Predator on this truck before? Has your truck been re-flashed by FMC?
Thread Starter
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Senior User
Joined: Nov 2002
Posts: 120
Likes: 0
From: cookeville us
I have been using the preditor for 125000 miles. I thik it is unlikely to start causing problems now. Did I forget to mention the truck ran great until ford flashed it when they were told not to.
Postmaster
Joined: Dec 2003
Posts: 4,196
Likes: 10
From: Arizona
Originally Posted by briancooper
I have been using the preditor for 125000 miles. I thik it is unlikely to start causing problems now. Did I forget to mention the truck ran great until ford flashed it when they were told not to.
Good luck
Postmaster
Joined: Dec 2003
Posts: 4,196
Likes: 10
From: Arizona
Originally Posted by briancooper
I took the programer to be re-programed and have updated it myself twice but no change.
I do know the lastest programs from FMC did away with using the EP sensor, so now the PCM strictly uses the MAF & MAP sensor to control the turbo. The DiabloSport Predator probably cannot deal with this in its present tune. So an updated tune from DiabloSport is more than likely needed.
Last edited by blackhat620; Jun 3, 2007 at 07:07 PM.
