TSB 05N04 — Ford Service bulletin

05N04 is a service bulletin on file with NHTSA for 3 Ford models, 1996–2002 model years. A TSB is factory repair guidance, not a recall — the repair is not automatically free.

What the bulletin says. EXTENDED COVERAGE PROGRAM 05N04 - EXTENDED COVERAGE FOR COMPOSITE INTAKE MANIFOLD. THIS PROGRAM IS BEING PROVIDED AS A SETTLEMENT TO A CLASS ACTION LAWSUIT. THE TERMS OF THE SETTLEMENT EXTEND THE COVERAGE OF THE ALL-COMPOSITE INTAKE MANIFOLD TO 7 YEARS FROM THE ORIGINAL WARRANTY…

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

1Document filed
3Vehicles named
7Model years

Vehicles and model years 05N04 names

VehicleModel years
Ford Crown Victoria 1996, 1997, 1998, 1999, 2000, 2001
Ford Explorer 2002
Ford Mustang 1997, 1998, 1999, 2000, 2001

Every document filed under 05N04

Document IDFiledType
05N04 December 14, 2005 Service bulletin

What 05N04 covers

Engine — the component vocabulary NHTSA files this communication under.

← All Ford Crown Victoria TSB years TSB lookup by model

Questions buyers ask

What is TSB 05N04?

05N04 is a service bulletin filed with NHTSA by Ford, covering 3 Ford models across the 1996–2002 model years. NHTSA's summary reads: EXTENDED COVERAGE PROGRAM 05N04 - EXTENDED COVERAGE FOR COMPOSITE INTAKE MANIFOLD. THIS PROGRAM IS BEING PROVIDED AS A SETTLEMENT TO A CLASS ACTION LAWSUIT. THE TERMS OF THE SETTLEMENT EXTEND THE COVERAGE OF THE ALL-COMPOSITE INTAKE MANIFOLD TO 7 YEARS FROM THE ORIGINAL WARRANTY…

Which vehicles does 05N04 cover?

NHTSA's file names Ford Crown Victoria (1996–2001); Ford Explorer (2002); Ford Mustang (1997–2001). 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 05N04 a recall, and is the repair free?

No. 05N04 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 05N04?

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 05N04, 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 05N04. Check any specific vehicle's open recalls by VIN at nhtsa.gov/recalls.