Just wondering if anyone might have any ideas of what could be causing this? I have an '04 F250 with the Powerstroke stock, no mods. When accelerating from a stop light I have a "stumble" i guess you could call it, a loss of power lasting for a few seconds, then the engine seems to pick up. A bit of a puff of black smoke once it picks up and thats it. It idle's fine, starts fine, runs fine at cruising speeds. I don't use it for towing at the moment. The check engine light is not on. Had the fuel filters changed last week and it had an oil change maybe 2 weeks back. Seems to only occur more once the engine heats up as well? Any thoughts would be appreciated. Thanks!

Cheers!

turbo lag

ltr450's Sig:

truck- 1996 2500 5speed with 170000 miles, mods- valair clutch rated at 500hp, #100 fuel plate, cai, turbo ring mia, 4inch str8 pipe, kdp fix, alot of new gaskets
toys-06 Suzuki LTR 450 lots of mods, 1999 cr250, 1998 ski-doo 500
Amsoil dealer since 2006
Dads truck- 2006 ram2500 cc lb 4" straight pipe, cai, trubo ring mia

How does the turbo lag normally get fixed?

Could be turbo lag, just part of driving a diesel. Hard to say with out driving it. Try slowly rolling into the throttle, and not just mashing it to the floor. Let us know if that helps.

04redstroker's Sig:

2004 F350 6.0 SCT w/ TSD tunes, straight pipe, S&B intake, 8in fabtech, 38*15.50 kumho m/t, 20in XD revolvers, F&R replacements, 07 harley headlight, custom painted grill 3.5in DP
2005 dodge cummins 487rwhp SOLD
1968 dodge d200 38000 orig. mi

Thanks for the replies so far!

I have tried rolling into it as opposed to just stepping on it. No difference. It's intermittent, sometimes it happens rolling into it, sometimes it doesn't, sometimes it happens stepping on it and sometimes it doesn't. I bought this truck in March and didn't have this problem, its just been within the past week or so that its started. Before this it ran fine.

Cheers!

Try having the injectors checked, or maybe the FICM. I own one and have heard that 1400000 times. I guess i can finally do the same

jeremy_wittlock's Sig:

2006 Ford F-250 Supercab XLT FX4. 6.0 Powerstroke. Edge Juice with Attitude. Airaid Intake. Custom 4'' Exhaust with muffler, and DPF delete. Daystar Leveing Kit with Ranch 9000 Shocks. 35x12.50 BFG Mud Terrains. Memphis Audio 10 inch sub in custom ported box powered by Memphis 300 watt amp. Kenwood Head Unit. 5% tint so they can't see up in my windows. Lots of stickers. A couple of KC daylighters. Bull Bar. Toolbox. A few others

I'd bet EGR or VGT not working right with your little puff of smoke.

Hard to diagnose over the computer though.

Big Angry Hillbilly's Sig:

2008 F-350 4x4 Off Road 6.4 PSD 23+ MPG
Ford Powerstroke Dealer Technician
310-S Ontario Motor Vehicle Mechanic
Windsor, Ontario, Canada
Modification Friendly Dealer Technician - Just don't try and hide it from me.

Big Angry Hillbilly; whenever I read the forum posts I always look for your responses first You certainly seem to know these engines!

You are right, it was the ERG valve. Dealership said it was clogged so they installed a new one and a kit with it? Not sure what that is, a gasket kit maybe?

I was wondering if I listed the part numbers if you would be able to explain to me a bit better what these parts are. It would be appreciated;

Valve A Z00 P# CX-2056
Kit - E N10 P# 6C3Z - 9P449 - A

She runs better than it did before it went in the shop so I'm happy. I read a lot on the forums here about guys cleaning their EGR out, I'm assuming thats different then the actual valve?

Cheers!

dont think, turbo i garuntee it

When people talk about cleaning the EGR, theyre talking about the valve. Its pretty easy to do and only takes a few minutes.

sorry i dont know where my last post came from haha. egr sounds right, actually i would just get rid of it, but thats me.