6.4L Power Stroke Engine and DrivetrainDiscussion of the 6.4L Power Stroke diesel engine and drivetrain in the 2008-Up Super Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.4L Power Stroke engine.
I did a trip last week again and the trans worked flawless. I guess I might of not had it in gear good the one time it slipped on me. But I'll keep my eye open when summer is here and I'm towing. The day it slipped on me it was warm. It has only slipped once in 12K now.
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2011 F350 Lariat DK.Blue/Silver,Black Leather Crew Cab,Short Box SRW. Supplemental Heater,3.55 ELD, Remote Starter. Used for hauling 16ft x 8.5ft. Work Trailer , 8ft. Fisher Plow, Lance 820 truck camper for those days I can get away.
honda guy4 .....mines in the shop for tranny again..... the tranz gets confused on the gear its needs to be in,,, dealer said they need codes on computer to prove its bad.they burned $60.00 diesel last time they worked on it. i will get the run around again if i had to guess... the service manager told me drive it like you stole it, until it breaks an then they will fix it.
I took mine in last week and they reflashed it (still ford's magical cure all to all problems i see)! I will drive it for a bit and see what happens, but i am pretty sure their is something else going on. Like you said bmwinc, the tranny seems to forget what gear it should be in (typically the lower gears around town on my truck) sometimes and then when it does decide it either slips into gear or clunks into gear. We'll see what a little more time does, let me know if you come up with anything! Other than that absolutely love the truck, hate the mileage, but what can you do!
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2008 Ford F-350 Lariat crew cab dark shadow gray w/all options except camera and nav.
2006 Dodge Ram 3500, CTD, 6speed, quad cab long box, mineral gray, bighorn edition, edge w/attitude, stainless nerf bars, billet grill, 285 BFG a/t's.
2003 F-350 XLT, crew cab, 7.3L, auto, 80k
2005 F-150 Lariat Supercrew, moon roof
2006 F-650 XLT, CTD, allison 5speed auto, 14' landscaper body w/fold down sides
1997 Ford F-250 XLT, extended cab, 7.3L, Auto 140K
1996 Ford F-250 XLT, extended cab, 7.3L, 5 speed man. 125K
My job 2 with 3000 miles recently started to rev higher when normaly accelerating at lower speeds. seems like around 2nd gear. No clunking into gear more like a slipping tranny. And only an intermittant problem.
I stuck my 250 in the sand, only up to the tire/rim bead ~6 inches. I put in 4 high and it wouldn't even spin tire with foot to the floor. I put in 4 low and it took the foot to the floor to get them to move.
My job 2 with 3000 miles recently started to rev higher when normaly accelerating at lower speeds. seems like around 2nd gear. No clunking into gear more like a slipping tranny. And only an intermittant problem.
Exactly what mine was doing too, the only other thing i can think of (as i have 3500 on my clock too) is that the tranny is maybe still learning??? I'm gonna give mine some more time and see what happens. Haven't noticed it much since the reflash, might be worht a shot? Keep us posted!
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2008 Ford F-350 Lariat crew cab dark shadow gray w/all options except camera and nav.
2006 Dodge Ram 3500, CTD, 6speed, quad cab long box, mineral gray, bighorn edition, edge w/attitude, stainless nerf bars, billet grill, 285 BFG a/t's.
2003 F-350 XLT, crew cab, 7.3L, auto, 80k
2005 F-150 Lariat Supercrew, moon roof
2006 F-650 XLT, CTD, allison 5speed auto, 14' landscaper body w/fold down sides
1997 Ford F-250 XLT, extended cab, 7.3L, Auto 140K
1996 Ford F-250 XLT, extended cab, 7.3L, 5 speed man. 125K
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Ford F-350 Lariat crew cab dark shadow gray w/all options except camera and nav.
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