Fast boost and lag??

[1badjk]

So this morning I went to pull out of my neighborhood and accelerated quickly, boost went up to 20psi range but the truck didn’t boost. I let out and then eased on the throttle and everything seemed fine. Maybe I was on more pedal than I thought but it just seemed odd.

Current mods:
Cobb CAI
COBB FMIC
COBB OTS stage 2
Catch can

No check engine lights or weird sounds but just seemed odd that I didn’t feel anything. Hopefully the bypass valve was doing it’s job. Would an external BOV be a better option?

 

[smurfslayer]

were you up to operating temp, or still warming up ? maybe the truck was cutting power on you.

 

[1badjk]

Still warming up

 

[royCfus]

Sounds like an intercooler coupler could have popped off

 

[1badjk]

Sounds like an intercooler coupler could have popped off

I wouldn’t think I would be able to build any boost if a coupler came off?? It still registers boost under acceleration

 

[cdurbin]

Mine does this leaving work after it’s been sitting for 6-7hrs. But only then. If it’s overnight, no problem.

If you continue in on the throttle it’ll do it until it shifts to 4th gear and then it’ll Kind of shift like it can’t figure out what it’s doing.

To me, it’s max boost and absolutely no power. With the way the transmission feels, to me it seems like it’s slipping.

I had ford look at it once and they couldn’t replicate, but this time I have a video of what it does.


Sent from my iPhone using Tapatalk

 

[royCfus]

I wouldn’t think I would be able to build any boost if a coupler came off?? It still registers boost under acceleration

Reason why I think that is when I installed my Full Race intercooler I had one of the coupler boots pop off a bit. I was able to build boost and drive normal but when I got on it the truck began to bog down and gear hunt... something like 4k rpm with 3/4 throttle. If I kept on the gas it popped a CEL but I was still able to keep driving.