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Service bulletin BC9668961001

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id50529
Published by NHTSA1997-05-27
Manufacturer's numberBC9668961001
Manufacturer's date1996-10-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

CONCERN FOR VEHICLES EXHIBITING LEAN CODES P0171 & P0174 (VACUUM LEAK). *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, Exhaust and emissions

Trouble codes named

P0171, P0174

Vehicles listed
FORD AEROSTAR
FORD ASPIRE
FORD BRONCO II
FORD CONTOUR
FORD CROWN VICTORIA
FORD E SERIES
FORD E-1501998
FORD E150
FORD E250
FORD ECONOLINE
FORD ESCORT
FORD EXPEDITION1997
FORD EXPLORER
FORD F SERIES (LIGHT)
FORD F SUPER DUTY
FORD F150
FORD F250
FORD F350
FORD F47
FORD LTD
FORD MUSTANG
FORD PROBE
FORD RANGER
FORD TAURUS
FORD THUNDERBIRD
FORD WINDSTAR
LINCOLN CONTINENTAL
LINCOLN TOWN CAR
MERCURY COUGAR
MERCURY GRAND MARQUIS
MERCURY MOUNTAINEER1997
MERCURY MYSTIQUE
MERCURY SABLE
MERCURY TRACER
MERCURY VILLAGER

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Other bulletins for the same vehicles and component
072122008-02-21. Service bulletin. 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
0416012006-01-13. Service bulletin. WDS COP KIT DIAGNOSTIC TIP - COIL ON PLUG (COP) IGNITION SYSTEMS - ENGINE MISFIRE OR ROUGH RUNNING. *TT
05542005-05-05. Service bulletin. USE OF STAINLESS STEEL EXHAUST STUDS IN SERVICE FOR 5.4L 2V ENGINE. *TT
0314042005-01-06. Service bulletin. 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.
022212004-07-27. Service bulletin. ENGINE-GEAR DRIVEN SYNCHRONIZERS-INCORRECT INSTALLATION-CAMSHAFT POSITION SYNCHRONIZER (CMP) INSTALLATION TOOL CORRECT APPLICATION. *MJ
173202004-07-23. Service bulletin. BROKEN EXHAUST MANIFOLD STUDS. *TT
031442003-10-29. Service bulletin. ENGINE MISFIRE OR ROUGH RUNNING CONDITION WITH COIL ON PLUG (COP) IGNITION SYSTEMS MAY BE MORE ACCURATELY DIAGNOSED USING THE OPTIONAL WORLDWIDE DIAGNOSTIC SYSTEM (WDS) COIL ON PLUG (COP) KIT. 2003 SUPER DUTY F SERIES INCLUDED. *TT
166832003-07-28. Service bulletin. FALSE FAILURE OF THE VAPOR MANAGEMENT VALVE (VMV). *TT *JB
8701972003-03-25. Service bulletin. INCORRECTLY INSTALLED GEAR DRIVEN CAMSHAFT POSITION (CMP) SENSOR SYNCHRONIZER ASSEMBLIES CAUSING SURGE, LOST OF POWER, MALFUNCTION INDICATOR LAMP ON AND DIAGNOSTIC TROUBLE CODES P1336, P1309 AND P0340. *TT
159012002-12-06. Service bulletin. THIS BULLETIN STATES THAT SOME 4.6L FQR ENGINE ASSEMBLIES MAY HAVE A SMALLER OR LARGER KNOCK SENSOR THREADED HOLD THAN THE ONE IN THE ORIGINAL ENGINE ASSEMBLY. *TT