TSB TSB-12-8-1 — Ford and Lincoln Service bulletin

TSB-12-8-1 is a service bulletin on file with NHTSA for 6 Ford and Lincoln models, 2004–2008 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. FORD/LINCOLN/MERCURY: MAY HAVE SLUDGE BUILDUP IN THROTTLE BODY LEADING TO LESS AIRFLOW OR ENGINE IDLING RPM FLUCTUATION AND HARD STARTS OR BATTERY DISCONNECT OR DEAD BATTERY AFTER KEEP ALIVE MEMORY (KAM) CLEAR. MODELS 2003-05 THUNDERBIRD, 05-06 MUSTANG, 06-08 FUSION, 04-05…

NHTSA's own summary of the document, quoted from the public manufacturer-communications file.

1Document filed
6Vehicles named
5Model years

Vehicles and model years TSB-12-8-1 names

VehicleModel years
Ford Expedition 2005, 2006
Ford Explorer 2004, 2005
Ford F-150 2005, 2006, 2007
Ford Fusion 2006, 2007, 2008
Ford Mustang 2005, 2006
Lincoln Navigator 2005, 2006

Every document filed under TSB-12-8-1

Document IDFiledType
TSB-12-8-1 August 1, 2012 Service bulletin

What TSB-12-8-1 covers

Engine, Electrical — the component vocabulary NHTSA files this communication under.

← All Ford Expedition TSB years TSB lookup by model

Questions buyers ask

What is TSB TSB-12-8-1?

TSB-12-8-1 is a service bulletin filed with NHTSA by Ford and Lincoln, covering 6 Ford and Lincoln models across the 2004–2008 model years. NHTSA's summary reads: FORD/LINCOLN/MERCURY: MAY HAVE SLUDGE BUILDUP IN THROTTLE BODY LEADING TO LESS AIRFLOW OR ENGINE IDLING RPM FLUCTUATION AND HARD STARTS OR BATTERY DISCONNECT OR DEAD BATTERY AFTER KEEP ALIVE MEMORY (KAM) CLEAR. MODELS 2003-05 THUNDERBIRD, 05-06 MUSTANG, 06-08 FUSION, 04-05…

Which vehicles does TSB-12-8-1 cover?

NHTSA's file names Ford Expedition (2005–2006); Ford Explorer (2004–2005); Ford F-150 (2005–2007); Ford Fusion (2006–2008); Ford Mustang (2005–2006); Lincoln Navigator (2005–2006). A bulletin number can be re-issued against more vehicles later, so check the model-year list on this page against your own.

Is TSB TSB-12-8-1 a recall, and is the repair free?

No. TSB-12-8-1 is repair guidance the manufacturer sent its dealers, not a safety defect finding. You pay for the work unless the vehicle is still under warranty. Recall repairs, by contrast, are always free.

How do I get the full text of TSB-12-8-1?

Take the document ID to a dealer's service desk, or search NHTSA's manufacturer-communications records. This page carries every document ID filed under TSB-12-8-1, its date, and NHTSA's own summary from the public file.

Data updated 2026-08-20 from NHTSA's public records

Every number on this page is a count of records in the federal complaint, recall, and investigation files published by NHTSA's Office of Defects Investigation. This page lists only what NHTSA's manufacturer-communications file records under TSB-12-8-1. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.