Cold Start Rough Running Hesitation Backfire

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COLD START ROUGH RUNNING/HESITATION/BACKFIRE – 5.4L ONLY

FORD:	2007-2008 F-150
LINCOLN:	2007-2008 Mark LT

2007-2008 F-150 and Mark LT vehicles equipped with a 5.4L engine only, may exhibit a rough running, hesitation and/or induction backfire during the first drive away event following an overnight or extended soak.

No diagnostic trouble codes (DTCs) or other driveability concerns should be observed.

This typically occurs when the ambient temperature is below 60 degrees F (16 degrees C).

The event will last only 20-40 seconds and normal operation will return once the system enters closed loop. This only applies to:

F-150 and Mark LT vehicles built between 12/4/2006 and 10/25/2007 at the Dearborn Truck Plant.
F-150 vehicles built between 12/4/2006 and 10/29/2007 at the Kansas City Assembly Plant.
F-150 vehicles built after 12/4/2006 at the Norfolk Assembly Plant.

SERVICE PROCEDURE

NOTE: IF OTHER DRIVEABILITY CONCERNS ARE PRESENT OR NOTED BY THE CUSTOMER, DO NOT CONTINUE WITH THIS. FOLLOW NORMAL WORKSHOP MANUAL (WSM) DIAGNOSTICS.

NOTE: NO DTC’S WILL BE PRESENT WITH THE CONDITION THIS CALIBRATION IS DESIGNED TO ADDRESS. IF DTC’S ARE PRESENT DO NOT CONTINUE WITH THIS. FOLLOW NORMAL WSM DIAGNOSTICS.

Reprogram the powertrain control module (PCM) to the latest calibration using IDS or Ford J2534 release 51.5 and higher.

Calibration files may also be obtained at www.motorcraft.com.

Service Information & Reprogramming

Software necessary to program electronic modules to the latest calibration level, perform module initialization (PATS), and set Programmable Parameters on Ford, Lincoln and Mercury vehicles.

Ford Module Programming (FMP) is a software application that allows subscribers to program electronic modules on Ford, Lincoln and Mercury vehicles. It can be used for:

Reprogramming emission-related (OBDII) modules on some vehicles manufactured in 1995 and all vehicles manufactured from 1996 to the present
Reprogramming or reconfiguring non-emission-related modules on many vehicles (UBP and MS-CAN not supported)

In addition, module initialization (PATS) functions such as Keycode Erase/Reprogram and PCM Parameter Reset can be done using this application.

J2534 Device using Ford Module Programming (FMP) can Reprogram and Configure most Modules.