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Service bulletin PIT4943C

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 id10111927
Published by NHTSA2017-08-15
Manufacturer's numberPIT4943C
Manufacturer's date2014-02-12
NHTSA componentEQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; FUEL SYSTEM, GASOLINE; SERVICE BRAKES, HYDRAULIC

NHTSA's summary

This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Technician will need to review Techlink article from May 2013 titled "Using the Evaporative Emissions System Tester" Technician will need to follow these steps to help diagnose the issue. First after the P0442 has been verified do not disturb any of the fuel system components. The technician now can use the scan tool to close the Evaporative Emissions System. If possible change the tank pressure sensor units from inch_H2O to milimeter_Hg for better resolution. Now the vehicle can be stared to monitor the tank pressure sensor output value for approximately two minutes. If the tank pressure sensor value does change, pressurize the fuel tank side of the purge solenoid with the GE 41413-A / J 41413-A and the necessary adaptors. Now add smoke and allow pressure to stabilize for 2 minutes. If smoke is allowed to pass through the purge solenoid, replace the purge solenoid. If the tank pressure sensor value does not change, then install CH-48096 adaptor between the purge line from the canister and the purge solenoid. With the Evaporative Emissions System closed, pressurize the system through the CH-48096 adaptor and allow the system to completely stabilize, by observing the Press / Vac Gauge for a minimum of 5 minutes. Now add smoke to the system with GE 41413-A / J 41413-A after system stabilization. Now inspect the purge solenoid, engine side, fuel cap, canister vent solenoid filter and any line quick connects. When the leak is unable to be located, test under a vacuum condition. his type of leak may be detected by using the scan tool Purge/Seal function to create a vacuum in the Evaporative Emissions System and then observe the FTP sensor parameter for vacuum decay.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Brakes, Equipment and accessories, Fuel system, Labels and manuals

Trouble codes named

P0442

Vehicles listed
BUICK CENTURY2000, 2001, 2002, 2003, 2004, 2005
BUICK ENCLAVE2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
BUICK ENCORE2013, 2014, 2015
BUICK LACROSSE2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
BUICK LESABRE2000, 2001, 2002, 2003, 2004, 2005
BUICK LESABRE2006
BUICK LUCERNE2006, 2007, 2008, 2009, 2010, 2011
BUICK LUCERNE2012
BUICK PARK AVENUE2000, 2001, 2002, 2003, 2004, 2005
BUICK RAINIER2004, 2005, 2006, 2007
BUICK REGAL2000, 2001, 2002, 2003, 2004
BUICK REGAL2005
BUICK REGAL2011, 2012, 2013, 2014, 2015
BUICK RENDEZVOUS2002, 2003, 2004, 2005, 2006, 2007
BUICK RIVIERA2000
BUICK TERRAZA2005, 2006, 2007
BUICK TERRAZA2008
BUICK VERANO2012, 2013, 2014, 2015
CADILLAC ATS2013, 2014, 2015
CADILLAC CATERA2000, 2001
CADILLAC CTS2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
CADILLAC DEVILLE2000, 2001, 2002, 2003, 2004, 2005
CADILLAC DTS2006, 2007, 2008, 2009, 2010, 2011
CADILLAC ELDORADO2000, 2001, 2002
CADILLAC ELR2014, 2015
CADILLAC ESCALADE2000
CADILLAC ESCALADE2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
CADILLAC ESCALADE ESV2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT 15002002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC SEVILLE2000, 2001, 2002, 2003, 2004
CADILLAC SRX2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
CADILLAC STS2005, 2006, 2007, 2008, 2009, 2010, 2011
CADILLAC XLR2004, 2005, 2006, 2007, 2008, 2009
CADILLAC XTS2013, 2014, 2015
CHEVROLET ALERO EXPORT2000 to 2002
CHEVROLET ASTRO2000 to 2005
CHEVROLET AVALANCHE2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET AVALANCHE 15002002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 25002002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVEO2004, 2005, 2006
CHEVROLET AVEO2009, 2010, 2011
CHEVROLET AVEO2013
CHEVROLET B72001
CHEVROLET B7 MEDIUM DUTY2000
CHEVROLET BLAZER2000, 2001, 2002, 2003, 2004, 2005
CHEVROLET C SERIES2007 to 2009
CHEVROLET CAMARO2000, 2001, 2002
CHEVROLET CAMARO2010, 2011, 2012, 2013, 2014, 2015
CHEVROLET CAPRICE2011 to 2015
CHEVROLET CAPTIVA2008
CHEVROLET CAPTIVA2011 to 2015
CHEVROLET CAPTIVA SPORT2009
CHEVROLET CAVALIER2000, 2001, 2002, 2003, 2004, 2005
CHEVROLET CHEVEROLET SS2014 to 2015
CHEVROLET CHEVY VAN2000
CHEVROLET CITY EXPRESS2015
CHEVROLET CLASSIC2004 to 2005
CHEVROLET COBALT2005, 2006, 2007, 2008, 2009, 2010
CHEVROLET COLORADO2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
CHEVROLET COLORADO2015
CHEVROLET CONVENTIONAL2001
CHEVROLET CONVENTIONAL2003
CHEVROLET CORVETTE2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
CHEVROLET CRUZE2011, 2012, 2013, 2014, 2015
CHEVROLET EPICA2005
CHEVROLET EQUINOX2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
CHEVROLET EXPRESS2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
CHEVROLET F SERIES2004 to 2006
CHEVROLET G SERIES2000
CHEVROLET G SERIES2003
CHEVROLET G VAN BUS2001 to 2002
CHEVROLET G VAN BUS2004 to 2006
CHEVROLET H SERIES2001
CHEVROLET HHR2006, 2007, 2008, 2009, 2010, 2011
CHEVROLET IMPALA2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
CHEVROLET L SERIES2001 to 2002
CHEVROLET LUMINA2000, 2001
CHEVROLET LUMINA2002
CHEVROLET M SERIES2000 to 2002
CHEVROLET M VAN2001
CHEVROLET MALIBU2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
CHEVROLET METRO2000, 2001
CHEVROLET MONTE CARLO2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
CHEVROLET OPTRA2004, 2005, 2006, 2007
CHEVROLET OPTRA2016
CHEVROLET ORLANDO2012, 2013, 2014
CHEVROLET P SERIES2000 to 2001
CHEVROLET PRIZM2000 to 2002
CHEVROLET S102000 to 2004
CHEVROLET SILVERADO 15002006, 2007, 2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 15002014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 1500 HD2002, 2003, 2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002000, 2001 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SONIC2012, 2013, 2014, 2015
CHEVROLET SPARK2013, 2014, 2015
CHEVROLET SPARK EV2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SSR2003, 2004, 2005, 2006
CHEVROLET SUBURBAN2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
CHEVROLET T SERIES2007, 2008, 2009
CHEVROLET TAHOE2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
CHEVROLET TRACKER2000, 2001, 2002, 2003, 2004
CHEVROLET TRAILBLAZER2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
CHEVROLET TRANS SPORT2000 to 2001
CHEVROLET TRAVERSE2009, 2010, 2011, 2012, 2013, 2014, 2015
CHEVROLET TRAX2013, 2014, 2015
CHEVROLET UPLANDER2005, 2006, 2007, 2008, 2009
CHEVROLET V SERIES2000
CHEVROLET VENTURE2000, 2001, 2002, 2003, 2004, 2005
CHEVROLET VOLT2011, 2012, 2013, 2014, 2015
CHEVROLET W SERIES2000
CHEVROLET W SERIES C3 35002006
CHEVROLET W-SERIES2001 to 2010
GMC ACADIA2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
GMC C SERIES2007 to 2009
GMC CANYON2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
GMC CANYON2015
GMC ENVOY2000 to 2001
GMC ENVOY2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
GMC ENVOY XL2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XUV2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
GMC F SERIES2004 to 2006
GMC G SERIES2000
GMC G SERIES2003
GMC G VAN BUS2000
GMC G VAN BUS2004 to 2006
GMC G VAN BUS2010
GMC GM2001 to 2002
GMC JIMMY2000 to 2004
GMC JIMMY CLASSIC2005
GMC M/L VAN2000 to 2001
GMC SAFARI2000, 2001, 2002, 2003, 2004, 2005
GMC SAFARI (GMC)2000 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
GMC SIERRA 15002014 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 1500 HD2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2015 (the catalog's model; the bulletin names a series or trim of it)
GMC SONOMA2000, 2001, 2002, 2003, 2004
GMC SUBURBAN2000
GMC SUBURBAN2001
GMC TERRAIN2010, 2011, 2012, 2013, 2014, 2015
GMC TOPKICK2003 to 2010
GMC W-SERIES2004 to 2010
GMC YUKON2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015
GMC YUKON DENALI2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
GMC YUKON XL2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2015
HUMMER H22003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
HUMMER H32006, 2007, 2008, 2009, 2010
ISUZU 4500 SERIES2006
OLDSMOBILE ALERO2000, 2001, 2002, 2003, 2004
OLDSMOBILE AURORA2000
OLDSMOBILE AURORA2001, 2002, 2003
OLDSMOBILE BRAVADA2000, 2001, 2002, 2003, 2004
OLDSMOBILE INTRIGUE2000, 2001, 2002
OLDSMOBILE SILHOUETTE2000, 2001, 2002, 2003, 2004
PONTIAC AZTEK2001, 2002, 2003, 2004, 2005
PONTIAC BONNEVILLE2000, 2001, 2002, 2003, 2004, 2005
PONTIAC FIREBIRD2000, 2001, 2002
PONTIAC G32008, 2009, 2010
PONTIAC G32011
PONTIAC G52007, 2008, 2009, 2010
PONTIAC G62005, 2006, 2007, 2008, 2009, 2010
PONTIAC G82008, 2009, 2010
PONTIAC GRAND AM2000, 2001, 2002, 2003, 2004, 2005
PONTIAC GRAND PRIX2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
PONTIAC GTO2004, 2005, 2006
PONTIAC MONTANA2000, 2001, 2002, 2003, 2004
PONTIAC MONTANA2005 to 2009
PONTIAC PURSUIT2005, 2006
PONTIAC PURSUIT2007 to 2009
PONTIAC SOLSTICE2006, 2007, 2008, 2009, 2010
PONTIAC SUNFIRE2000, 2001, 2002, 2003, 2004, 2005
PONTIAC TORRENT2006, 2007, 2008, 2009
PONTIAC TRANS SPORT2000 to 2001
PONTIAC VIBE2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
PONTIAC WAVE2005
SAAB 9-32009
SAAB 9-52009, 2010
SAAB 9-7X2005, 2006, 2007, 2008, 2009
SATURN ASTRA2008, 2009
SATURN AURA2007, 2008, 2009, 2010
SATURN ION2003, 2004, 2005, 2006, 2007
SATURN L2002003
SATURN L3002003, 2004, 2005
SATURN LW2002000, 2001, 2002 (the catalog's model; the bulletin names a series or trim of it)
SATURN OUTLOOK2007, 2008, 2009, 2010
SATURN RELAY2005, 2006, 2007
SATURN RELAY2008
SATURN SKY2007, 2008, 2009, 2010
SATURN SL2000, 2001, 2002
SATURN VUE2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

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

Recalls for the same vehicles and component
20195332019-10-24. Brakes
19V7610002019-10-24. SERVICE BRAKES; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING; ELECTRONIC STABILITY CONTROL (ESC)
19V6450002019-09-06. SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
20193242019-06-28. Brakes
20184642018-08-31. Brakes
18V5780002018-08-30. SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES
16V0690002016-02-05. SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES
20160532016-02-04. Brakes
20144052014-09-18. Brakes
14V5680002014-09-17. PARKING BRAKE

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

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