# Service bulletin 0421

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10007363
- Published by NHTSA: 2004\-06\-16
- Manufacturer's number: 0421
- Manufacturer's date: 2004\-02\-09
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE

## NHTSA's summary

ENGINE KNOCK DURING INITIAL COLD START, THE KNOCK WILL CEASE AFTER THE ENGINE IS FULLY WARMED UP. \*TT

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Engine

## Vehicles listed

- 2003 to 2004 FORD CROWN VICTORIA
- 2003 to 2004 LINCOLN TOWN CAR
- 2003 to 2004 MERCURY GRAND MARQUIS

## Other bulletins for the same vehicles and component

- [SSM 46085](/bulletins/10109070.md), 2017-08-01, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:MANIFOLD/HEADER/MUFFLER/TAIL PIPE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:GAS RECIRCULATION VALVE \(EGR VALVE\); ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:COOLING SYSTEM:RADIATOR ASSEMBLY; ENGINE; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE \(PCV\); ENGINE AND ENGINE COOLING:COOLING SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS; ENGINE AND ENGINE COOLING:ENGINE; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN. The Powertrain Control/Emissions Diagnosis \(PC/ED\) manual has been revised for diagnosing electronic throttle bodies \(ETBs\). The ETC\_ACT and ETC\_DSD PIDs should not used to diagnose possible ETB concerns. The IDS has a limited refresh rate when reading these PIDs and cannot display quickly enough to validate a concern. The PCM automatically monitors these inputs more accurately and will set diagnostic trouble codes \(DTCs\) when appropriate. Using these PIDs for diagnostics will lead to inaccurate results and improper ETB replacements. If a concern is intermittent and no DTCs are present, refer to historical DTCs and the PC/ED, Section 3 No DTCs Present Index chart for further information.
- [07212](/bulletins/10023943.md), 2008-02-21, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. SOME 1997\-2008 VEHICLES EQUIPPED WITH A 4.6L 2V, 5.4L 2V, OR 6.8L 2V ENGINE\-\-SPARK PLUG THREAD REPAIR PROCEDURE\-\-NOT COVERED UNDER NEW VEHICLE LIMITED WARRANTY. \*NJ THIS INCLUDES F\-53 MOTORHOME CHASSIS. UPDATED 2/23/10. \*PE
- [062512](/bulletins/10022298.md), 2007-07-25, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. REDUCTION IN POWER AT WIDE OPEN THROTTLE. \*KB
- [041601](/bulletins/10018745.md), 2006-01-13, Service bulletin: ENGINE AND ENGINE COOLING. WDS COP KIT DIAGNOSTIC TIP \- COIL ON PLUG \(COP\) IGNITION SYSTEMS \- ENGINE MISFIRE OR ROUGH RUNNING. \*TT
- [0531](/bulletins/10012947.md), 2005-04-05, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. MAF DIAGNOSTIC SERVICE TIP \- VEHICLES EQUIPPED WITH EGR SYSTEM MODULE \(ESM\). \*TT
- [0524](/bulletins/10012940.md), 2005-04-05, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. IDLE VIBRATION VEHICLES EQUIPPED WITH SINGLE EXHAUST. \*EH
- [031404](/bulletins/10011162.md), 2005-01-06, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. ENGINE MISFIRE OR RUNNING \- COIL ON PLUG \(COP\) IGNITION SYSTEMS \- WDS COP KIT DIAGNOSTIC TIPS. TO INCLUDE VARIOUS 2005 MODELS. \* AR THIS ARTICLE 04161 SUPERSEDES TSB 03\-14\-04.
- [04E12](/bulletins/10010000.md), 2004-11-03, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR. EMISSION RELATED SERVICE ACTION 04E12. VEHICLES SERVICED WITH AN INCORRECT RIGHT HAND CATALYTIC CONVERTER. INSPECT AND REPLACE RIGHT HAND CATALYTIC CONVERTER. ATTACHMENTS I\-III AND CUSTOMER NOTIFICATION LETTER. \*TT
- [04145](/bulletins/10009327.md), 2004-09-23, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. ENGINE VIBRATION AT IDLE ON VEHICLES EQUIPPED WITH SINGLE EXHAUST. \*TT
- [04143](/bulletins/10009325.md), 2004-09-23, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. EXHAUST LEAK AT EXHAUST MANIFOLD TO CATALYTIC CONVERTER ATTACHMENT POINTS. \*TT

JSON: [/v1/bulletins/10007363](/v1/bulletins/10007363)

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