Sluggish Acceleration off-the-line when Warm

[LittleRadio]

Pardon me if an answer to my problem has been posted somewhere already... I'm having difficulty searching these forums. (Server issues??).

Anyway, my '05 X's 6.0L PowerStroke accelerates from a stop (when warm) as though its turbocharger isn't spinning... either that, or like I'm dragging a 5-ton trailer behind me.

It's not so noticeable when cold... but when the engine is warm/hot, sometimes I pull out into traffic and am frightened by the lack of acceleration. Then I mash the pedal and the engine spools up and seems to finally get going.

Any ideas? This just ain't right for a motor with 560 lb/ft of torque.

Tony

[duramaxslayer]

Dont Know but hopefully a Tech will!!
BUMPITY

[SCUFFY828]

there are several things , turbo may be sticking being the most common , line to map sensor maybe slightly clogged , not very likely but have seen it, ebp sensor bad , vgt solenoid sticking on turbo, egr valve acting up some , need to have codes pulled just to see if there are any , it can set a code with no light on, my

[mschn99]

Originally Posted by SCUFFY828

there are several things , turbo may be sticking being the most common , line to map sensor maybe slightly clogged , not very likely but have seen it, ebp sensor bad , vgt solenoid sticking on turbo, egr valve acting up some , need to have codes pulled just to see if there are any , it can set a code with no light on, my

I totally agree with scott's above post...the only other usefull info i can think of is if there is any black smoke and how much...

[jayman69]

Is it just turbo lag? I just bought a 06 F250 and when I push on the throttle it seems to sit for about 2-3 seconds then it spools and goes. I thought this was normal for the 6.0's. I had a 7.3 before and there is a night and day difference between the two as far as spool up and take off. Maybe there is something wrong with mine to. I will be watching this thread.

[thunderinms]

Mine was doing the same thing the other day. I did not get a check engine light though. I will pull the codes tonight when I get home. I was thinking of upgrading the diablo and tuning it to TOW SAFE and trying that...

GG

[DFurman]

mine did the same thing, if i mashed on it when i was up to speed it would go like a scalded dog but at idle and initial acceleration i didnt hear much turbo noise. It was a stuck charger!

[Rob]

i also agree with scuffy's post. have the codes pulled if any and go from there. i learned that the 6.0's need to be ran a little harder, almost like they are built to beat up on! i had lots of issues before i started to run it harder. so if you are taking it easy on it that may be a cause also, drive it like you stole it!