Fulltext TSBs

Technical Service Bulletins

TSB
08-4-4
  • COLD START ROUGH RUNNING/HESITATION/BACKFIRE – 4.6 ONLY
Publication Date: February 8, 2008

FORD:
2007-2008 F-150

ISSUE:

Some 2007-2008 F-150 vehicles equipped with a 4.6L engine, 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 °F (16 °C). The event will last only 20-40 seconds and normal operation will return once the system enters closed loop.

ACTION:

Follow the Service Procedure steps to correct the condition.

SERVICE PROCEDURE

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

Reprogram the powertrain control module (PCM) to the latest calibration using IDS release 53.4 and higher. This new calibration is not included in the VCM 2008.1 DVD. Calibration files may also be obtained at www.motorcraft.com..

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.

OPERATIONDESCRIPTIONTIME
080404A2007-2008 F-150 4.6: Check DTCs Reprogram The PCM Authorization Decal Not Required (Do Not Use With 12650D)0.3 Hr.

DEALER CODING

BASIC PART NO.CONDITION CODE
recal04