Turbo lag

[06 6.0]

Ive been running the same tune for a year now, but lately ( last 3 weeks or so) its been very sluggish id just like to know what or where I should be looking. If I take off i have to almost floor it to spool the turbo once it spools it seems normal.

[a2elvis]

Probably a turbo unison ring sticking. Even with tunes the stiction is an issue.

[06 6.0]

Well it was cleaned by ford dealer 5 months ago is it still possible?

[a2elvis]

yep still possible... Kinda unlikely if it was just cleaned but just cause they say they clean it they might not take the care for getting EVERYTHING clean. Turbo making any weird noises? Poss MAP sensor prob, backpressure sensor?

[06 6.0]

well i straight piped the stock exhaust, Its been that way a while i have had any cel's turbo has always had a rattling sound when i let off the throttle but they said it was the veins moving doesnt sound like any of my buddies trucks. Im installing a egr delete in a week or two ill probably tear the turbo down myself and see.

[Evil Eye]

More than likely the MAP or EBP sensor like Andrew suggested. Since you are going to be taking it apart here in the next couple of weeks, let us know what you find.

[06 6.0]

how do i check the map or esb?

[doubledrop]

do u get any heavy black smoke when its spooling? that rattle you hear I had when I had an exhaust leak on one of my up-pipes i cld feel it in the floorboard of the truck it was crazy

[06 6.0]

epb sorry!

[06 6.0]

It doesnt smoke at all