Capt Skup wrote: I had my truck in for the latest reflash and to have the degas bottle venturi installed week prior to our vacation. We towed our Sunline from Southern Maryland to Lancaster, PA, Old Mill Stream campground and back. Using tow/haul and keeping road speeds between 55-60mph, got an overall average 10.9mpg. This is hand calculated, refilling to the top of the fuel neck each time. The lie-o-meter was spot on. The truck towed the 12k trailer with ease of course and ran perfect. Diesel up there was selling for $4.49 a gallon. Never did get an indication of a regen the whole trip which amounted to about 500 miles of highway and farm country driving. BTW, very nice part of America to see and Old Mill Stream campground extremely clean and well run. Just do not expect to loose any weight, Lord the food sure is good and way too plentiful.
Man, that still seems like much lower MPG's than the newest 6.6 Duramax and 6.7 Cummins. In the 10's?
Seems like all I hear is on the forum is the 6.4 is down on independently dyno'ed h.p. and torque, and fuel mileage........What goes here?
This reflash doesn't seem like it upped the mileage to anything near the other two latest diesels from GM. or Dodge/Cummins, even though they are down from previous years.
Regards, Eightballsidepocket
2005 Dodge Ram 2500 SLT 4x2 Quad Cab, Cummins, 48RE Tranny, Lg Bed, Line-X Spray-on Bed Liner.
06 T25BS Komfort Trailblazer TT
"If you can't say it in person, it isn't worth saying while hiding behind an anonymous P.C.!"
Eightball, my truck is a 4.88 equipped 450, not a 3.73 SRW 250/350. Not bad mileage for a truck of this class rated for 33k lbs GCWR.
Latest reflash:
08-13-2 for pre-08/03/07 built trucks
08-13-3 for trucks built after the above date
Capt Skup
AD-1(AW)USN Ret.
Wonderful Wife, 3 beautiful Daughters
"Never get in a battle of wits with an unarmed man"
Capt Skup wrote: I had my truck in for the latest reflash and to have the degas bottle venturi installed week prior to our vacation. We towed our Sunline from Southern Maryland to Lancaster, PA, Old Mill Stream campground and back. Using tow/haul and keeping road speeds between 55-60mph, got an overall average 10.9mpg. This is hand calculated, refilling to the top of the fuel neck each time. The lie-o-meter was spot on. The truck towed the 12k trailer with ease of course and ran perfect. Diesel up there was selling for $4.49 a gallon. Never did get an indication of a regen the whole trip which amounted to about 500 miles of highway and farm country driving. BTW, very nice part of America to see and Old Mill Stream campground extremely clean and well run. Just do not expect to loose any weight, Lord the food sure is good and way too plentiful.
Man, that still seems like much lower MPG's than the newest 6.6 Duramax and 6.7 Cummins. In the 10's?
Seems like all I hear is on the forum is the 6.4 is down on independently dyno'ed h.p. and torque, and fuel mileage........What goes here?
This reflash doesn't seem like it upped the mileage to anything near the other two latest diesels from GM. or Dodge/Cummins, even though they are down from previous years.
My mpg's seem lower, that is for sure, comparatively. But I always take mpg reporting with a grain of salt. There are so many factors that contribute, wind, terrain, speed, profile of TV & trailer. Without a doubt I'm a little dissapointed, but it is still WAY WAY better then my F150 was, especially through the mountains/wind!!!
My guess is right now a highway trip (unladen) on fairly flat with fairly mild wind I will average 17 or better.
Capt Skup wrote: Eightball, my truck is a 4.88 equipped 450, not a 3.73 SRW 250/350. Not bad mileage for a truck of this class rated for 33k lbs GCWR.
Latest reflash:
08-13-2 for pre-08/03/07 built trucks
08-13-3 for trucks built after the above date
I can see with that 4.88 rear end that would definitely affect your MPG's.
Capt Skup sent you a email but I was wondering if you payed to have the venturi kit installed, my dealer said they couldn't do it even if I paid for it until Ford released them to the public.
It's reprogramming the onboard computer with the latest, most up to date software.
I didn't know anything about it either until I read this thread. Then I called my Ford dealer and he said that unless I was having problems, I should probably leave it alone. I'm getting 17 highway on my 02 7.3 liter right now he said that was really good.
2002 F-250 full size ext. cab Powerstroke
2005 31' Prowler Bunk House TT (for the grandkids)
Always try to be the person your dog thinks you are!
6.4L—VEHICLES BUILT BETWEEN 8/3/2007 AND TSB 08-13-3
1/3/2008—MODULE REPROGRAMMING
FORD:
2008 F-Super Duty
ISSUE
ACTION Some 2008 F-Super Duty 250-550 vehicles
equipped with a 6.4L diesel engine and built Follow the Service Procedure steps to correct the
between 8/3/2007 and 1/3/2008 may require a condition.
calibration update which will include: SERVICE PROCEDURE
• Diesel Particulate Filter (DPF) regeneration will no
longer initiate at idle and in power-take-off (PTO) Reprogram the powertrain control module (PCM),
mode. When “Drive to Clean Exhaust Filter” is transmission control module (TCM) and IC.
displayed on the instrument cluster PTO and/or 1. Reprogram the PCM/TCM by selecting Module
stationary elevated idle (SEIC) must be Reprogramming PCM to the latest calibration
disengaged/inactive in order to properly clean the using IDS release 55.10 or later, patch 24 or
DPF. The “Drive to Clean Exhaust Filter” later and 56.1 or later. This new calibration is
message will continue to be displayed until an not included in the VCM 2008.7 DVD. When
adequate drive cycle is completed. If the vehicle reprogramming the PCM on automatic
is operated in a manner to allow effective transmission equipped vehicles the TCM will
automatic cleaning the message center will also automatically be reprogrammed to the
display “Cleaning Exhaust Filter” indicating normal latest level. Calibration files may also be
regeneration process. obtained at www.motorcraft.com.
• Diagnostic and malfunction indicator operation
improvements for P0128, P0196 and P2002. 2. Reprogram the IC by selecting Module
• Enhancements to reduce vehicle surge and Reprogramming IC to the latest calibration
improve resume function during cruise control using the same IDS release.
operation. NOTE
• PTO content; vehicle speed output signal used by THE PCM/TCM AND IC ARE REPROGRAMMED
vehicle upfitters will now read zero when vehicle SEPARATELY.
is stopped and PTO idle engagement RPM
ramp-rate revised. Please print out the Customer Information Sheet
and insert into the glove box Owners Guide for
• Improvements to reduce P0544, P2031 and
future customer reference. (Figure 1)
P242A set on long deceleration after cold start.
• Exhaust gas recirculation (EGR) disable function
at idle is now determined by exhaust temperature
and not idle time. This calibration also includes
the following instrument cluster (IC) message
center display updates: Drive to clean exhaust
filter, cleaning exhaust filter and exhaust filter
drive complete.
NOTE: The information in Technical Service Bulletins is intended for use by trained, professional technicians with the knowledge, tools, and equipment to do
the job properly and safely. It informs these technicians of conditions that may occur on some vehicles, or provides information that could assist in proper
vehicle service. The procedures should not be performed by “do-it-yourselfers”. Do not assume that a condition described affects your car or truck. Contact a
Ford, Lincoln, or Mercury dealership to determine whether the Bulletin applies to your vehicle. Warranty Policy and Extended Service Plan documentation
determine Warranty and/or Extended Service Plan coverage unless stated otherwise in the TSB article.The information in this Technical Service Bulletin
(TSB) was current at the time of printing. Ford Motor Company reserves the right to supercede this information with updates.The most recent information is
available through Ford Motor Company’s on-line technical resources.
Copyright ã 2008 Ford Motor Company Online Publication Date June 17, 2008 PAGE 1
TSB 08-13-3 (Continued)
NOTE OPERATION DESCRIPTION TIME
REPROGRAMMING CONCERNS/ERRORS MAY 081303A 2008 F-Super Duty 0.5 Hr.
BE CAUSED BY THE DATA LINK CONNECTOR Automatic Transmission:
(DLC) OR VEHICLE COMMUNICATION MODULE Reprogram The
(VCM) BECOMING DISCONNECTED, LOW PCM/TCM/IC Includes
BATTERIES ON THE IDS OR THE IDS GOING Time to Check For DTCs
INTO ANY TYPE OF SLEEP MODE, OR LOW Authorization Decal Not
VEHICLE BATTERY VOLTAGE. IF THERE WAS Required (Do Not Use
AN INTERRUPTION DURING REPROGRAMMING, With 12650D)
MAKE SURE THE ORIGINAL IDS SESSION THAT 081303B 2008 F-Super Duty Manual 0.4 Hr.
WAS CREATED FOR THE VEHICLE IS NOT Transmission: Reprogram
DELETED. IF THE ORIGINAL VEHICLE SESSION The PCM/IC, Includes
IS NOT USED OR DELETED BEFORE THE Time to Check For DTCs
MODULES ARE COMPLETELY REPROGRAMMED, Authorization Decal Not
FURTHER REPROGRAMMING ERRORS CAN Required (Do Not Use
OCCUR. THE MODULE RECOVERY PROCEDURE With 12650D)
IS NO LONGER AVAILABLE AND IT IS CRITICAL DEALER CODING
THAT MODULE SWAPPING IS NOT PERFORMED CONDITION
FROM VEHICLE TO VEHICLE. TO REGAIN BASIC PART NO. CODE
COMMUNICATION WITH A MODULE THAT HAS RECAL 04
BEEN ERASED DURING REPROGRAMMING,
RESUME THE ORIGINAL SESSION ONCE THE
IDS IS REBOOTED.
WARRANTY STATUS: Eligible Under Provisions Of
New Vehicle Limited
Warranty Coverage
IMPORTANT: Warranty
coverage limits/policies are
not altered by a TSB.
Warranty coverage limits
are determined by the
identified causal part.
PAGE 2
Figure 1 - Article 08-13-3
PAGE 3
Capt Skup wrote: Using tow/haul and keeping road speeds between 55-60mph, got an overall average 10.9mpg.
So your fuel mileage went from horrendous up to just terrible.
Diesel engines from 5 to 10 years ago may not pull as fast as the new diesels, but they sure got better fuel mileage doing it. Ford can't get the new Scorpion Diesel in the Superduty fast enough. It is supposed to be more powerful and more efficient than the current 6.4L PSD.
2005 Surveyor SV-291 Tows smooth as silk!
1995 Dodge Ram 1500 Laramie SLT 4x4 5.9L V8 low miles, It ain't pretty, but it's paid for!
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