# 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. - Type: Service bulletin - NHTSA id: 10111927 - Published by NHTSA: 2017\-08\-15 - Manufacturer's number: PIT4943C - Manufacturer's date: 2014\-02\-12 - NHTSA component: EQUIPMENT: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 - [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10111927-9999.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10111927-0001.pdf) The document is the manufacturer's. This site does not hold it. ## Components Brakes, Equipment and accessories, Fuel system, Labels and manuals ## Trouble codes named P0442 ## Vehicles listed - 2000 to 2005 BUICK CENTURY - 2008 to 2015 BUICK ENCLAVE - 2013 to 2015 BUICK ENCORE - 2005 to 2015 BUICK LACROSSE - 2000 to 2005 BUICK LESABRE - 2006 BUICK LESABRE - 2006 to 2011 BUICK LUCERNE - 2012 BUICK LUCERNE - 2000 to 2005 BUICK PARK AVENUE - 2004 to 2007 BUICK RAINIER - 2000 to 2004 BUICK REGAL - 2005 BUICK REGAL - 2011 to 2015 BUICK REGAL - 2002 to 2007 BUICK RENDEZVOUS - 2000 BUICK RIVIERA - 2005 to 2007 BUICK TERRAZA - 2008 BUICK TERRAZA - 2012 to 2015 BUICK VERANO - 2013 to 2015 CADILLAC ATS - 2000 to 2001 CADILLAC CATERA - 2003 to 2015 CADILLAC CTS - 2000 to 2005 CADILLAC DEVILLE - 2006 to 2011 CADILLAC DTS - 2000 to 2002 CADILLAC ELDORADO - 2014 to 2015 CADILLAC ELR - 2000 CADILLAC ESCALADE - 2002 to 2015 CADILLAC ESCALADE - 2003 to 2015 CADILLAC ESCALADE ESV - 2007 to 2013 CADILLAC ESCALADE EXT - 2002 to 2006 CADILLAC ESCALADE EXT 1500 - 2000 to 2004 CADILLAC SEVILLE - 2004 to 2015 CADILLAC SRX - 2005 to 2011 CADILLAC STS - 2004 to 2009 CADILLAC XLR - 2013 to 2015 CADILLAC XTS - 2000 to 2002 CHEVROLET ALERO EXPORT - 2000 to 2005 CHEVROLET ASTRO - 2007 to 2013 CHEVROLET AVALANCHE - 2002 to 2006 CHEVROLET AVALANCHE 1500 - 2002 to 2006 CHEVROLET AVALANCHE 2500 - 2004 to 2006 CHEVROLET AVEO - 2009 to 2011 CHEVROLET AVEO - 2013 CHEVROLET AVEO - 2001 CHEVROLET B7 - 2000 CHEVROLET B7 MEDIUM DUTY - 2000 to 2005 CHEVROLET BLAZER - 2007 to 2009 CHEVROLET C SERIES - 2000 to 2002 CHEVROLET CAMARO - 2010 to 2015 CHEVROLET CAMARO - 2011 to 2015 CHEVROLET CAPRICE - 2008 CHEVROLET CAPTIVA - 2011 to 2015 CHEVROLET CAPTIVA - 2009 CHEVROLET CAPTIVA SPORT - 2000 to 2005 CHEVROLET CAVALIER - 2014 to 2015 CHEVROLET CHEVEROLET SS - 2000 CHEVROLET CHEVY VAN - 2015 CHEVROLET CITY EXPRESS - 2004 to 2005 CHEVROLET CLASSIC - 2005 to 2010 CHEVROLET COBALT - 2004 to 2012 CHEVROLET COLORADO - 2015 CHEVROLET COLORADO - 2001 CHEVROLET CONVENTIONAL - 2003 CHEVROLET CONVENTIONAL - 2000 to 2015 CHEVROLET CORVETTE - 2011 to 2015 CHEVROLET CRUZE - 2005 CHEVROLET EPICA - 2005 to 2015 CHEVROLET EQUINOX - 2000 to 2015 CHEVROLET EXPRESS - 2004 to 2006 CHEVROLET F SERIES - 2000 CHEVROLET G SERIES - 2003 CHEVROLET G SERIES - 2001 to 2002 CHEVROLET G VAN BUS - 2004 to 2006 CHEVROLET G VAN BUS - 2001 CHEVROLET H SERIES - 2006 to 2011 CHEVROLET HHR - 2000 to 2015 CHEVROLET IMPALA - 2001 to 2002 CHEVROLET L SERIES - 2000 to 2001 CHEVROLET LUMINA - 2002 CHEVROLET LUMINA - 2000 to 2002 CHEVROLET M SERIES - 2001 CHEVROLET M VAN - 2000 to 2015 CHEVROLET MALIBU - 2000 to 2001 CHEVROLET METRO - 2000 to 2007 CHEVROLET MONTE CARLO - 2004 to 2007 CHEVROLET OPTRA - 2016 CHEVROLET OPTRA - 2012 to 2014 CHEVROLET ORLANDO - 2000 to 2001 CHEVROLET P SERIES - 2000 to 2002 CHEVROLET PRIZM - 2000 to 2004 CHEVROLET S10 - 2006 to 2011 CHEVROLET SILVERADO 1500 - 2014 CHEVROLET SILVERADO 1500 - 2002 to 2005 CHEVROLET SILVERADO 1500 HD - 2000 to 2015 CHEVROLET SILVERADO 2500 - 2000 to 2001 CHEVROLET SILVERADO 3500 - 2013 CHEVROLET SILVERADO 3500 - 2012 to 2015 CHEVROLET SONIC - 2013 to 2015 CHEVROLET SPARK - 2014 to 2015 CHEVROLET SPARK EV - 2003 to 2006 CHEVROLET SSR - 2000 to 2015 CHEVROLET SUBURBAN - 2007 to 2009 CHEVROLET T SERIES - 2000 to 2015 CHEVROLET TAHOE - 2000 to 2004 CHEVROLET TRACKER - 2002 to 2009 CHEVROLET TRAILBLAZER - 2000 to 2001 CHEVROLET TRANS SPORT - 2009 to 2015 CHEVROLET TRAVERSE - 2013 to 2015 CHEVROLET TRAX - 2005 to 2009 CHEVROLET UPLANDER - 2000 CHEVROLET V SERIES - 2000 to 2005 CHEVROLET VENTURE - 2011 to 2015 CHEVROLET VOLT - 2000 CHEVROLET W SERIES - 2006 CHEVROLET W SERIES C3 3500 - 2001 to 2010 CHEVROLET W\-SERIES - 2007 to 2015 GMC ACADIA - 2007 to 2009 GMC C SERIES - 2004 to 2012 GMC CANYON - 2015 GMC CANYON - 2000 to 2001 GMC ENVOY - 2002 to 2009 GMC ENVOY - 2006 GMC ENVOY XL - 2004 to 2005 GMC ENVOY XUV - 2004 to 2006 GMC F SERIES - 2000 GMC G SERIES - 2003 GMC G SERIES - 2000 GMC G VAN BUS - 2004 to 2006 GMC G VAN BUS - 2010 GMC G VAN BUS - 2001 to 2002 GMC GM - 2000 to 2004 GMC JIMMY - 2005 GMC JIMMY CLASSIC - 2000 to 2001 GMC M/L VAN - 2000 to 2005 GMC SAFARI - 2000 GMC SAFARI \(GMC\) - 2000 to 2015 GMC SAVANA - 2014 GMC SIERRA 1500 - 2004 to 2005 GMC SIERRA 1500 HD - 2004 to 2015 GMC SIERRA 2500 - 2007 to 2013 GMC SIERRA DENALI - 2015 GMC SIERRA DENALI - 2000 to 2004 GMC SONOMA - 2000 GMC SUBURBAN - 2001 GMC SUBURBAN - 2010 to 2015 GMC TERRAIN - 2003 to 2010 GMC TOPKICK - 2004 to 2010 GMC W\-SERIES - 2000 to 2015 GMC YUKON - 2000 to 2013 GMC YUKON DENALI - 2004 to 2013 GMC YUKON DENALI XL - 2000 to 2011 GMC YUKON XL - 2012 to 2014 GMC YUKON XL - 2015 GMC YUKON XL - 2003 to 2010 HUMMER H2 - 2006 to 2010 HUMMER H3 - 2006 ISUZU 4500 SERIES - 2000 to 2004 OLDSMOBILE ALERO - 2000 OLDSMOBILE AURORA - 2001 to 2003 OLDSMOBILE AURORA - 2000 to 2004 OLDSMOBILE BRAVADA - 2000 to 2002 OLDSMOBILE INTRIGUE - 2000 to 2004 OLDSMOBILE SILHOUETTE - 2001 to 2005 PONTIAC AZTEK - 2000 to 2005 PONTIAC BONNEVILLE - 2000 to 2002 PONTIAC FIREBIRD - 2008 to 2010 PONTIAC G3 - 2011 PONTIAC G3 - 2007 to 2010 PONTIAC G5 - 2005 to 2010 PONTIAC G6 - 2008 to 2010 PONTIAC G8 - 2000 to 2005 PONTIAC GRAND AM - 2000 to 2008 PONTIAC GRAND PRIX - 2004 to 2006 PONTIAC GTO - 2000 to 2004 PONTIAC MONTANA - 2005 to 2009 PONTIAC MONTANA - 2005 to 2006 PONTIAC PURSUIT - 2007 to 2009 PONTIAC PURSUIT - 2006 to 2010 PONTIAC SOLSTICE - 2000 to 2005 PONTIAC SUNFIRE - 2006 to 2009 PONTIAC TORRENT - 2000 to 2001 PONTIAC TRANS SPORT - 2003 to 2010 PONTIAC VIBE - 2005 PONTIAC WAVE - 2009 SAAB 9\-3 - 2009 to 2010 SAAB 9\-5 - 2005 to 2009 SAAB 9\-7X - 2008 to 2009 SATURN ASTRA - 2007 to 2010 SATURN AURA - 2003 to 2007 SATURN ION - 2003 SATURN L200 - 2003 to 2005 SATURN L300 - 2000 to 2002 SATURN LW200 - 2007 to 2010 SATURN OUTLOOK - 2005 to 2007 SATURN RELAY - 2008 SATURN RELAY - 2007 to 2010 SATURN SKY - 2000 to 2002 SATURN SL - 2002 to 2010 SATURN VUE ## Recalls for the same vehicles and component - [2019533](/recalls/tc/2019533.md), 2019-10-24: Brakes - [19V761000](/recalls/nhtsa/19V761000.md), 2019-10-24: SERVICE BRAKES; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:WHEEL SPEED SENSOR/TONE RING; ELECTRONIC STABILITY CONTROL \(ESC\) - [19V645000](/recalls/nhtsa/19V645000.md), 2019-09-06: SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM - [2019324](/recalls/tc/2019324.md), 2019-06-28: Brakes - [2018464](/recalls/tc/2018464.md), 2018-08-31: Brakes - [18V578000](/recalls/nhtsa/18V578000.md), 2018-08-30: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES - [16V069000](/recalls/nhtsa/16V069000.md), 2016-02-05: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES - [2016053](/recalls/tc/2016053.md), 2016-02-04: Brakes - [2014405](/recalls/tc/2014405.md), 2014-09-18: Brakes - [14V568000](/recalls/nhtsa/14V568000.md), 2014-09-17: PARKING BRAKE ## Other bulletins for the same vehicles and component - [18\-NA\-180](/bulletins/11024324.md), 2025-10-16, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This Warranty Administration service bulletin provides Lithium\-Ion battery Exchange Process and Transaction Submission information. - [18\-NA\-180](/bulletins/11023365.md), 2025-09-26, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This Warranty Administration service bulletin provides Lithium\-Ion battery Exchange Process and Transaction Submission information. - [25\-NA\-065](/bulletins/11017173.md), 2025-04-24, Service bulletin: STEERING; SERVICE BRAKES; FUEL/PROPULSION SYSTEM. This informational bulletin instructs the tech when fuel/fluid is needed to be tested and where it can be sent for analysis. - [21\-NA\-043](/bulletins/11014230.md), 2025-02-12, Service bulletin: VISIBILITY/WIPER; SERVICE BRAKES; ENGINE; ELECTRICAL SYSTEM; WHEELS. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold \(prepping\) to the customer. - [18\-NA\-180](/bulletins/11013239.md), 2025-01-30, Service bulletin: ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. This Warranty Administration service bulletin provides Lithium\-Ion battery Exchange Process and Transaction Submission information. - [18\-NA\-180](/bulletins/11012678.md), 2025-01-08, Service bulletin: FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This Warranty Administration service bulletin provides Lithium\-Ion battery Exchange Process and Transaction Submission information. - [17\-NA\-271](/bulletins/11011990.md), 2024-12-19, Service bulletin: WHEELS; SERVICE BRAKES. This service bulletin provides a procedure to clean the back side of the rims and rotors and to correct the customer concern of wheel clicking. - [18\-NA\-180](/bulletins/11011896.md), 2024-12-17, Service bulletin: FUEL/PROPULSION SYSTEM; ELECTRICAL SYSTEM. This Warranty Administration service bulletin provides Lithium\-Ion battery Exchange Process and Transaction Submission information. - [21\-NA\-043](/bulletins/11011709.md), 2024-12-10, Service bulletin: STRUCTURE:BODY; WHEELS; ENGINE; SERVICE BRAKES; UNKNOWN OR OTHER. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold \(prepping\) to the customer. - [17\-NA\-239](/bulletins/11010562.md), 2024-11-14, Service bulletin: SERVICE BRAKES. This bulletin provides information on possible normal brake drag caused by the vehicle parked for an extended period of time. 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