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Engine - Lacks Power in High Temperatures
Article No.
02-12-3

06/24/02

^ DRIVEABILITY - ENGINE LACKS POWER WHEN
OPERATING IN HIGH AMBIENT TEMPERATURES
ABOVE 38C (100F) - VEHICLES EQUIPPED WITH
5.4L ENGINE ONLY

^ ENGINE - 5.4L - ENGINE LACKS POWER WHEN
OPERATING IN HIGH AMBIENT TEMPERATURES
ABOVE 38C (100F)

FORD:
2000-2002 EXPEDITION, F-150

ISSUE

Some vehicles equipped with the 5.4L-2V engine may exhibit a lack of power condition when operating in ambient temperatures above 38°C (100 °F). This may be caused by the Powertrain Control Module (PCM) calibration which retards the ignition timing to prevent detonation when the Inlet Air Temperature (IAT) reaches 60°C (140 °F) or above. This may be more pronounced during stop-and-go driving.

ACTION

Verify the condition. Reprogram the PCM with the latest calibration and on 2000 and 2001 F-150's, install body plugs behind Coolant Overflow Bottle if missing. Refer to the following Service Procedure for details.

SERVICE PROCEDURE





For 2000-2002 F-150's and Expeditions equipped with a 5.4L 2V engine, if a lack of power occurs only when the IAT is above 60°C (140°F), reprogram the PCM to the latest level calibration as shown.





For 2000 and 2001 F150's, install Body Plugs (383181-S and N807093-S) behind the Coolant Overflow Bottle. Refer to Figure 1 for location and plug button installation. These plugs will reduce the engine compartment heat moving into the air cleaner inlet area.

Body Plug Installation

1. Remove air cleaner inlet. Refer to Section 303-12.

2. Remove jack handle.

3. Remove upper radiator sight shield.

4. Disconnect radiator overflow hose from radiator to degas bottle.

5. Position degas bottle away from body plug hole area.

6. Install body plugs in location shown in illustration.

7. Position back degas bottle Torque to 9 N.m (80 Lb-in).

8. Connect radiator overflow hose.

9. Install upper radiator sight shield.

10. Install jack handle.

11. Install air cleaner inlet. Refer to Section 303-12.






Parts Block





Obtain an Authorized Modifications decal (FPS 8262 obtainable through DOES II, 25/pkg) and list the date, dealer number, and summary of modifications performed. Select a prominent place adjacent to the Vehicle Emission Control Information decal suitable for installing the Authorized Modifications decal. Clean the area, install the decal, and cover it with a clear plastic decal shield.

OTHER APPLICABLE ARTICLES: NONE

WARRANTY STATUS: Eligible Under The Provisions Of bumper To bumper Warranty Coverage And Emissions Warranty Coverage

OPERATION DESCRIPTION TIME

021203A Reprogram Powertrain 0.6 Hr.
Control Module: 2000,
2001, 2002, F-150, F-150
Super Crew, Expedition

021203B Reprogram Powertrain 0.9 Hr.
Control Module And Install
Body Plugs If Missing:
2000, 2001 F-150, F-150
Super Crew

DEALER CODING
CONDITION
BASIC PART NO. CODE
RECALEM 42

OASIS CODES: 614000, 614500, 614600, 622000

Copyright © 2003 ALLDATA LLC
Terms of Use

 

any help will do

 

I still notice power loss even though its not hot anymore, ive test driven other Expeditions 5.4 like mine and they seem faster, i guess i'll get the reflash that it states.

 

I could use this myself!!

 

Got the reflash, seems to be doing good. $90 bucks, oh well.

 

Cool, mine is going in next week for a idle vibration TSB, I will see if they can do this one too.
Jimmy

 

here you go, maybe you can take it to the dealer and have it checked, its $90.00 to do the reflash, mine ran fine it seemed but the problem came back, im not sure what to do, it seems to be running ok here in California, temps. about 100 everyday. Hope this thread helped.