dreamin-on

So did the op get his truck fixed? For both of you IMHO your trucks aren't right. I easily tow my 5000 lbs boat with no issues. I have pulled a 9000lbs trailer just as easily on a couple of occasions. 3.73 gearing helps but I only notice it pulling away from a stop.

Mileage in the truck has gotten a little better since new. 15-16 now with 18 k miles.

eye.surgeon

The mileage issue sounds normal to me. I don't know if I'd call 14 MPG in a 7,000 pound V8 truck extremely poor. Depending on what you are towing, 10 MPG could be totally normal.

I'm confused when you say your engine overheated...they have a failsafe for loss of coolant that prevents overheating.

chvie99ss

Don't mean to jump into a thread. I keep reading about TSB on transmission. I went in to a TSB database and found nothing. I have 2010 FX2 5.4L3v, does it apply.
thanks

seadragon

Here is one TSB that is out that I found...

TSB 10-12-4
07/05/10
5.4L 3V AND 6R80 TRANSMISSION -
DELAYED/HARSH DOWNSHIFT ABOVE 40 MPH (64
KM/H)

FORD:
2009-2010 Expedition, F-150

LINCOLN:
2009-2010 Navigator

ISSUE
Some 2009-2010 Expedition and Navigator vehicles built on or before 5/1/2010 and 2009-2010 F-150 vehicles built on or before 2/1/2010 and equipped with 5.4L 3V engine and 6R80 transmission may exhibit a delayed then harsh downshift during a commanded downshift at speeds above 40 MPH (64 Km/h).

ACTION
Follow the Service Procedure to correct the condition.

SERVICE PROCEDURE
1.
Install Integrated Diagnostic System (IDS)/Portable Diagnostic Software (PDS) or equivalent and ID vehicle.

2.
Reprogram the powertrain control module (PCM)/transmission control module (TCM) calibration using IDS release 67.03 and higher. This new calibration is not included in the VCM 2010.5 DVD. Calibration files may also be obtained at the website.

NOTE THE TCM CANNOT BE INDEPENDENTLY REPROGRAMMED, REPROGRAM USING THE PMI FUNCTION TO ENSURE THAT ENGINE AND TRANSMISSION CALIBRATIONS ARE UPDATED TO THE LATEST LEVEL SIMULTANEOUSLY.

a.
Verify that the 1CM Calibration is:

(1)
AL3P-7J104-AC for all vehicles except the F-150 4X4.

(2)
AL3P-7J104-BC for F-150 4X4.

b.
Select the following from the IDS tool:

(1)
Toolbox

(2)
Powertrain

(3)
OBD Test Modes

(4)
Mode Level 9 Vehicle Info

(5)
1CM Cal Part Number

3.
Clear TCM keep alive memory (KAM) and adaptive tables.

NOTE IT IS CRITICAL THAT 1CM KAM BE CLEARED FOR THIS PROCEDURE TO BE FULLY EFFECTIVE

a.
Using IDS:

(1)
Open Toolbox

(2)
Choose Powertrain Then Choose TCM

(3)
Choose Reset KAM

b.
Using PDS:

(1)
Choose all Tests and Calibrations

(2)
Scroll down the menu and choose reset 1CM KAM

NOTE FOR PDS, RESET TCM KAM IS NOT THE SAME AS CLEAR TRANSMISSION ADAPTIVE TABLES, WHICH IS UNDER THE POWERTRAIN - TRANSMISSION MENU TREE.

NOTE UNHOOKING THE BATTERY WILL NOT CLEAR THE TCM KAM. IT IS CRITICAL THAT TCM KAM BE CLEARED PRIOR TO RELEARNING THE ADAPTIVE TABLES FOR THE TRANSMISSION.

NOTE DO NOT CLEAR THE PCM KAM.

4.
Verify that the transmission fluid temperature (TFT) PID is above 175 °F (80 °C). If it is not at 175 °F (80 °C), drive unit approximately 3 miles (5 Km) to reach temperature.

NOTE TFT MUST BE AT 175 °F (80 °C) OR ABOVE BEFORE PROCEEDING TO STEP 5.

NOTE PERFORM ADAPTIVE SHIFT STRATEGY LEARN ON LEVEL SURFACE ROAD.

5.
Drive unit to perform adaptive shift strategy learn.

a.
Accelerate from a stopped position with light throttle to 15 MPH (24 Km/h) and remove foot from accelerator pedal.

b.
Brake very gently to a complete stop, allow at least six (6) seconds.

c.
Repeat steps (a-b) five (5) times in the dealership parking lot or similar setting.

d.
Accelerate from rest with light throttle ensuring that the 1-2, 2-3 and 3-4 shifts occur at engine speeds between 1700-2000 RPM.

e.
Continue to accelerate until you achieve 50 MPH (80 Km/h) or the 5-6 upshift.

f. Brake gently to a complete stop and hold foot on brake for ten seconds.
g.
Repeat steps (d-f) three (3) times.

NOTE SEVERAL DAYS OF DRIVING ARE REQUIRED FOR THE TRANSMISSION TO FULLY ADAPT.

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.

chvie99ss

thank you very much. I'll get it in.

1383ss

I'm getting 16-17 city/hwy combo. I have gotten 19 hwy and usually 12.5 towing my 4500lb boat. I also have a ARE cap on it. 09 FX4 screw 5.4 3v 6speed and a magnaflow cat-back.

gdub0241et

I picked my truck up from the dealer after they updated the PCM and a new throttle body. The shifting is far better but now it has a new problem. When it sits for 10 or more hours it takes about 6-12 seconds for the truck to start cold. Once its warm its fine. They told me to keep driving it to see if it clears up so far it hasn't. Anyone had this issue. Before the updates it never did this..

They did put some driving time on the vehicle roughly 1/4 tank I'm sure it was to let the trans adjust.

manic5_2001

hmmm, that only happens when I change my tune from stock to 87perf, 93perf, you crank it and it cranks for a long time then starts. MINE only does it ONCE the first time after I installed the tune then it starts normal, used it during the snow storm earlier this year and it was def cold.