Hi, i need help with low boost issues

[Brian_B]

If you do go to the dealer you will want the JB4 out of there entirely or they will just blame everything on that

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[Ape Factory]

If you do go to the dealer you will want the JB4 out of there entirely or they will just blame everything on that

...and void your warranty. So definitely remove it, zero evidence it was ever there if it goes to the dealer.

 

[swamp2]

...and void your warranty. So definitely remove it, zero evidence it was ever there if it goes to the dealer.

That's a myth and HIGHLY dealer dependent. That said, I would certainly remove the JB4 when the issue its is being taken in for is directly related to the action of the JB4.

 

[Ape Factory]

That's a myth and HIGHLY dealer dependent. That said, I would certainly remove the JB4 when the issue its is being taken in for is directly related to the action of the JB4.

It isn't a myth. Ford would have every right to cancel your powertrain warranty if you brought the car in with a JB4 connected. Yes, it's dependent on how cool your service manager is but not something any owner wants to gamble with. That's just f*cking stupid.

 

[swamp2]

It isn't a myth. Ford would have every right to cancel your powertrain warranty if you brought the car in with a JB4 connected. Yes, it's dependent on how cool your service manager is but not something any owner wants to gamble with. That's just f*cking stupid.

A right to isn't a guarantee of. But as we agree, just remove it before.

If dealers actually stuck to the law under Magnuson-Moss, they would have to prove the component caused the problem to deny any warranty.

 

[GA2Dr]

I am a 2.7 also (not Raptor). I wonder if the stock BOV might be an issue. I was noticing lower boost numbers on mine and so decided to try a Turbo smart BOV and bam - at least according to the stock gauge, the boost is slightly higher and doesn't bleed off as much as with the stock BOV. I was highly skeptical when I bought the Turbo smart but I was pleasantly surprised after installing.

 

[turboelvis]

I am a 2.7 also (not Raptor). I wonder if the stock BOV might be an issue. I was noticing lower boost numbers on mine and so decided to try a Turbo smart BOV and bam - at least according to the stock gauge, the boost is slightly higher and doesn't bleed off as much as with the stock BOV. I was highly skeptical when I bought the Turbo smart but I was pleasantly surprised after installing.

I will try to take it to dealer first and see what they say

 

[turboelvis]

So, I removed jb4 and max boost a sow was 14psi. Left Branco and ford dealer , dealer called me to tell whey can’t find ant issues , so I guess 14psi off boost it’s normal ?!

 

[Terry@BMS]

Send a JB4 log on map0 and map2 if you'd like us to review boost levels!

 

[turboelvis]

I did emailed to bms direct email map 0 and map 3. And I was told jb4 works like it shut . But stock boat level only 14psi

 

[turboelvis]

This is map 3 run

 

[turboelvis]

This is map 0

 

[Terry@BMS]

Those are PDFs, not CSV log files. For JB4 support/questions email the logs to [email protected].

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