2010 MKS no turbo power/negative boost

[salsathe4th]

Lately I've been having problems with my car not getting its full potential when WOT. When I WOT i can hear the whirring of my engine increase then quickly drop and not fully contain the boost pressure. (The turbos continue to spool up but the power from them gets released) I ran the torque app and found out that at low speed i have -12 psi and at WOT it would go to 7 then quickly go to 0 or even negative. I feel like that shouldn't happen when i am accelerating. The only time I can get more then 0 is when the car quickly downshifts but yet that doesn't last as long as it should (to the end of the gear). From a dead stop to pressing on the gas pedal the boost psi rarely goes positive. If anyone could help me with this issue that'd be great

[ZSHO]

It sounds like your wastegate hose popped off by the actuator or the intake charge pipe.  Z

[FoMoCoSHO]

CAC hose could be loose as well.

Mine popped off after a d-ship trip and i had an NA SHO for a bit....didn't like it much.

[salsathe4th]

I rather new to this engine do you have pictures to where these parts are located?

[FoMoCoSHO]

Follow the throttle body tube back towards the radiator.

[ZSHO]

Check out this video courtesy of 14shocar,hope this helps to get an inside perspective.  Z    https://www.youtube.com/watch?v=vrhBu5XtafU  Also need to purchase a 1/4 clamp so it does not pop off again,pic's below highlighted in blue,hope this helps any.  Z

[glock-coma]

Hey sal I'm pretty close to you in Parma. I could take a look and sho you where those connections are if you would like.

[salsathe4th]

Hey sal I'm pretty close to you in Parma. I could take a look and sho you where those connections are if you would like.

If i can't figure out the problem in the next couple of days I'll stop over for some help. Thank you!

[glock-coma]

Hey sal I'm pretty close to you in Parma. I could take a look and sho you where those connections are if you would like.

If i can't figure out the problem in the next couple of days I'll stop over for some help. Thank you!

No prob. Sent you an IM with my contact info. Or you can send me a message here.

[Vortech347]

Nice video.  I'm going to go put a clamp on that MOFO right now!  With two other boosted cars I've learned EVERY vacuum or boost line needs retention.

[ZSHO]

I found using some 1/4 hose clamps to be very beneficial in securing those hoses.  Z  http://www.amazon.com/gp/product/B0040CWZR0?psc=1&redirect=true&ref_=oh_aui_search_detailpage           

[salsathe4th]

i checked all the connections pictured and they were all on and secure. Could this be a turbo itself related issue? Also i just wanted to say that if im barely touching the gas pedal while moving (LIKE BARELY!) The car will go forward fine. BUT once i let off the car gets a slight drop back kick and then starts to decrease speed faster then it should.

[glock-coma]

Leak could be on the "hot pipes" in between the turbos and intercooler.
They have been known to tear right at the bellowed area. The ecoboost motor has a crazy amount of front/back movement under load. 

[ZSHO]

I forgot to mention if you have any codes set?? Should be some codes,especially with your symptoms.  Z

[glock-coma]

Any progress?