Hey, I have a 2008 super duty 6.4 power stroke diesel, F-250. This seems weird because it seems like it only happens when it rains.

After driving highway speeds and stopping, when I accelerate again I have a loss of power, skipping and smoking. When I back off the accelerator and increase the speed slowly everything levels off and when I'm back up to highway speeds, it's fine.

Anyone out there experienced this before? Got a soloution?

DaBoss

 

Never expeirenced it myself, but you have the classic symptoms of water in your CAC (charge air cooler)
TSB
08-25-1
6.4L DIESEL - WHITE SMOKE IN DAMP WEATHER CONDITIONS WHEN ACCELERATING - VEHICLES BUILT BEFORE 10/1/2008

[************]Publication Date: November 26, 2008[/color]

FORD:
2008-2009 F-Super Duty


ISSUE:

Some 2008-2009 F-Super Duty 250-550 vehicles equipped with a 6.4L diesel engine and built before 10/1/2008 may exhibit significant amounts of white smoke from the exhaust pipe while driving in high humidity or rainy conditions at temperatures above 40 °F (4 °C). This smoke only appears during a moderate to full throttle tip-in that is performed after a period of steady state driving.
ACTION:

Follow the Service Procedure steps to correct the condition.
SERVICE PROCEDURE



This procedure only applies if the vehicle meets the following criteria:
Concern is described as significant amounts of white smoke from the exhaust pipe.
White smoke only occurs in high humidity or rainy conditions above 40 °F (4 °C).
White smoke only appears during a moderate to heavy tip-in that is performed after a period of steady state driving (approximately 20 minutes)
No diagnostic trouble codes (DTCs) are present.
Concern is not a result of regeneration, a cleaning exhaust filter event.
If all of the criteria above is true, then replace the Charge Air Cooler Assembly with a new revised part per Workshop Manual, Section 303-12.

PART NUMBER PART NAME
7C3Z-6K775-B Charge Air Cooler Assembly

__________________
this was the old TSB on the issue.

 

Thanks for the info. Sounds like me!

DaBoss

 

Is this Jan 10/2008 or Oct 1/2008??

 

Built before Oct 2008. It is probably expired by now but gives you some idea of the issue.

 

Ok, yeah nice to know if I ever come across this issue. Thanks.

 

DId this fix your issue? What did it turn out to be?

 

Funny thing is here, the OP had a drivability issue. The Listed TSB was for damp weather white smoke only addresses a white smoke condition and does not identify or correct ANY drivability concerns. Since this topic is over 4 years old we will probably never know what DaBoss2000 ended up finding with his truck. My opinion is that it was likely a fuel system issue or a calibration concern... or both.

For anyone with the white smoke in damp weather concern the TSB was superseded to TSB 11-2-2

 

I had this same problem, had the truck looked at in 2009, and they couldn't replicate the issue so they sent me packing. (It wasn't raining that day) Found out later, can't remember how, that it didn't need to be replicated. So I took it back, and lo and behold it was raining that morning and someone who works there was behind me when I took off from a red light and he was hammered with the white smoke. CAC was replaced. Problem has come back off and on over the years so I feel there is more to it than just the CAC having water in it.