Possible causes – Engine Control Module (ECM) Programming error– Vehicle Identification Number (VIN) not programmed to ECM– Faulty or wrong ECM Tech notes If a new ECM is installed in a vehicle, the Vehicle Identification Number (VIN) has to be
Possible causes – Engine Control Module (ECM) Programming error– Vehicle Identification Number (VIN) not programmed to ECM– Faulty or wrong ECM Tech notes If a new ECM is installed in a vehicle, the Vehicle Identification Number (VIN) has to be
Possible causes – Engine Control Module (ECM) Programming error– Vehicle Identification Number (VIN) not programmed to ECM– Faulty or wrong ECM Tech notes If a new ECM is installed in a vehicle, the Vehicle Identification Number (VIN) has to be
Possible causes – Engine mechanical problems– Incorrect timing chain– Stretched timing chain– Failed camshaft actuator or actuator solenoid Tech notes There is a factory service bulletin for the following Buick models: 2004-2006 Buick Rendezvous2005-2008 Buick Lacrosse2008 Buick Enclave The service
Possible causes – Engine mechanical problems– Incorrect timing chain– Stretched timing chain– Failed camshaft actuator or actuator solenoid Tech notes There is a factory service bulletin for the following Buick models: 2004-2006 Buick Rendezvous2005-2008 Buick Lacrosse2008 Buick Enclave The service
Possible causes – Engine mechanical problems– Incorrect timing chain– Stretched timing chain– Failed camshaft actuator or actuator solenoid Tech notes There is a factory service bulletin for the following Cadillac models: 2004-2008 Cadillac CTS SRX2005-2008 Cadillac STS The service bulletin
Possible causes – Engine mechanical problems– Incorrect timing chain– Stretched timing chain– Failed camshaft actuator or actuator solenoid Tech notes There is a factory service bulletin for the following Cadillac models: 2004-2008 Cadillac CTS SRX2005-2008 Cadillac STS The service bulletin
Possible causes – Engine mechanical problems– Incorrect timing chain– Stretched timing chain– Failed camshaft actuator or actuator solenoid Tech notes There is a factory service bulletin for the following Chevrolet models: 2008 Chevrolet Malibu2008 Chevrolet Equinox The service bulletin suggest
Possible causes – Engine mechanical problems– Incorrect timing chain– Stretched timing chain– Failed camshaft actuator or actuator solenoid Tech notes There is a factory service bulletin for the following GMC models: 2007-2008 GMC Acadia The service bulletin suggest replacing the
Possible causes – Engine mechanical problems– Incorrect timing chain– Stretched timing chain– Failed camshaft actuator or actuator solenoid Tech notes There is a factory service bulletin for the following GMC models: 2007-2008 GMC AcadiaThe service bulletin suggest replacing the primary
Possible causes – Engine mechanical problems– Incorrect timing chain– Stretched timing chain– Failed camshaft actuator or actuator solenoid Tech notes There is a factory service bulletin for the following Pontiac models: 2007-2008 Pontiac G62008 Pontiac G82008 Pontiac Torrent The service
Possible causes – Engine mechanical problems– Incorrect timing chain– Stretched timing chain– Failed camshaft actuator or actuator solenoid Tech notes There is a factory service bulletin for the following Pontiac models: 2007-2008 Pontiac G62008 Pontiac G82008 Pontiac TorrentThe service bulletin
Possible causes – Engine mechanical problems– Incorrect timing chain– Stretched timing chain– Failed camshaft actuator or actuator solenoid Tech notes There is a factory service bulletin for the following Saturn models: 2007-2008 Saturn Aura2007-2008 Saturn Outlook2008 Saturn Vue The service
Possible causes – Engine mechanical problems– Incorrect timing chain– Stretched timing chain– Failed camshaft actuator or actuator solenoid Tech notes There is a factory service bulletin for the following Saturn models: 2007-2008 Saturn Aura2007-2008 Saturn Outlook2008 Saturn VueThe service bulletin
Possible causes – Engine mechanical problems– Incorrect timing chain– Stretched timing chain– Failed camshaft actuator or actuator solenoid When is the code detected? The ECM detects that both camshafts on either bank of the engine are mis-aligned with the crankshaft
Possible causes – Engine mechanical problems– Incorrect timing chain– Stretched timing chain– Failed camshaft actuator or actuator solenoid When is the code detected? The ECM detects that both camshafts on either bank of the engine are mis-aligned with the crankshaft
Possible causes – Engine mechanical problems– Incorrect timing chain– Stretched timing chain– Failed camshaft actuator or actuator solenoid Tech notes There is a factory service bulletin for the following Chevrolet models: 2008 Chevrolet Malibu2008 Chevrolet Equinox The service bulletin suggest
Possible causes – Engine oil dirty– Incorrect engine viscosity– Crankshaft position sensor circuit is open or shorted– Camshaft position sensor circuit is open or shorted– Faulty crankshaft position sensor– Faulty camshaft position sensor– Timing gear misalign Symptoms – Engine Light
Possible causes – Engine oil dirty– Incorrect engine viscosity– Crankshaft position sensor circuit is open or shorted– Camshaft position sensor circuit is open or shorted– Faulty crankshaft position sensor– Faulty camshaft position sensor– Timing gear misalign Symptoms – Engine Light
Possible causes – Engine oil dirty– Incorrect engine viscosity– Crankshaft position sensor circuit is open or shorted– Camshaft position sensor circuit is open or shorted– Faulty crankshaft position sensor– Faulty camshaft position sensor– Timing gear misalign Symptoms – Engine Light