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TSB Main Page
TSB
08-18-2
  • MIL ON - P0506 AND/OR P0505 - HESITATION/LOSS OF RPM/DIFFICULTY STARTING/LOW IDLE RPM
Publication Date: August 21, 2008

FORD:
2005-2007 Crown Victoria
2006 Mustang, Mustang
2004-2006 F-150, F-150
2005-2006 E-350, E-450, F-Super Duty
2006 F-53 Motorhome Chassis
2006-2007 Explorer Sport Trac, Explorer
LINCOLN:
2005-2007 Town Car
2006 Mark LT
MERCURY:
2005-2007 Grand Marquis
2006-2007 Mountaineer, Mountaineer

This article supersedes TSB(s) 08-5-13, 07-23-12 and 06-25-8 to update the Service Procedure.

ISSUE:

Some 2004-2006 4.6L and 5.4L F-150 (excluding F-150 Heritage), 2006 5.4L Mark LT, 2005-2006 6.8L E-350 / E-450, 2005-2006 6.8L F-Super Duty (F-250 to F-550), 2006 6.8L F-53 Motorhome Chassis, 2006-2007 4.0L Explorer 4 dr, 2007 4.0L Explorer Sport Trac, 2006-2007 4.0L Mountaineer, 2006 4.0L Mustang, 2006 - 2007 4.6L 3V Explorer / Explorer Sport Trac / Mountaineer, 2006 4.6L 3V Mustang, and 2005-2007 Crown Vic / Grand Marquis / Towncar vehicles may exhibit one or more of the following symptoms: drive-away hesitation, loss of RPM on deceleration, difficulty starting, and/or idle RPM less than desired. Malfunction indicator lamp (MIL) may be illuminated with diagnostic trouble codes (DTCs) P0506 and/or P0505. These conditions may appear after battery disconnect, dead battery condition, or keep alive memory (KAM) reset. The symptoms may be due to engine deposits in the throttle leading to airflow less than desired.

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