BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This service bulletin provides inspection/diagnosis/correction information on a cold start misfire and/or rough idle and DTC P0300 that may also be set.
HomeP0300 · Manufacturer communications
P0300 · Manufacturer communications
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, OLDSMOBILE, PONTIAC, SATURN
Reported code forms P0300
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, OLDSMOBILE, PONTIAC, SATURN
Reported code forms P0300
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, OLDSMOBILE, PONTIAC, SATURN
Reported code forms P0300
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
BUICK, CADILLAC, CHEVROLET
Reported code forms P0300
This service bulletin provides inspection/diagnosis/correction information on a cold start misfire and/or rough idle and DTC P0300 that may also be set.
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This service bulletin advises the technician of a diagnostic test for a possible issue with a damaged OCV solenoid that may cause an oil leak and misfire, illuminating the MIL and setting DTCs P0300, P0302 and/or P0305.
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, OLDSMOBILE, PONTIAC, SATURN
Reported code forms P0300
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, ISUZU, OLDSMOBILE, PONTIAC, SAAB, SATURN
Reported code forms P0300
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Bulletin provides inspection/diagnosis/correction information on a cold start misfire and/or rough idle and DTC P0300 that may also be set.
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, ISUZU, OLDSMOBILE, PONTIAC, SAAB, SATURN
Reported code forms P0300
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
BUICK, CADILLAC, CHEVROLET
Reported code forms P0300
This technical bulletin provides a procedure to correct a condition of engine runs rough, misfire or MIL Illuminated with P0300 set.
BUICK, CADILLAC, CHEVROLET
Reported code forms P0300
This Preliminary information communicates diagnostics and repairs in addition to what is already in Service Information. The concern this document is designed for is specific to some 2019 vehicles with 2.0 LTG engine…
BUICK, CADILLAC, CHEVROLET
Reported code forms P0300
This technical bulletin provides a procedure to correct a condition of engine runs rough, misfire or MIL Illuminated with P0300 set.
BUICK, CADILLAC, CHEVROLET
Reported code forms P0300
This Preliminary information communicates diagnostics and repairs in addition to what is already in Service Information. The concern this document is designed for is specific to some 2019 vehicles with 2.0 LTG engine…
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, ISUZU, OLDSMOBILE, PONTIAC, SAAB, SATURN, SUZUKI
Reported code forms P0300
This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This preliminary informational bulletin provides repair information for a customer concern of an engine runs rough with the Check Engine Light (CEL) on/low compression on cylinder with misfire. A technician may find DTC…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Bulletin provides inspection/diagnosis/correction information on a cold start misfire and/or rough idle and DTC P0300 that may also be set.
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician with information regarding high misfire rates always on #1 cylinder. A customer may complain of misfires or roughness on cold start up…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician with information regarding high misfire rates always on #1 cylinder. A customer may complain of misfires or roughness on cold start up…
CADILLAC, CHEVROLET
Reported code forms P0300
This Preliminary Information communication provides information to the technician with the steps to diagnose and repair vehicles that have Malfunction Indicator Lamp on with Diagnostic Trouble Codes P0264 or P0265 and…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician with information regarding high misfire rates always on #1 cylinder. A customer may complain of misfires or roughness on cold start up…
CADILLAC, CHEVROLET
Reported code forms P0300
This preliminary informational bulletin provides repair information for a customer concern of an engine rough run with the Check Engine Light (CEL) on/low compression on cylinder with misfire. A technician may find DTC…
CADILLAC, CHEVROLET
Reported code forms P0300
This preliminary informational bulletin provides repair information for a customer concern of an engine runs rough with the Check Engine Light (CEL) on/low compression on cylinder with misfire. A technician may find DTC…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that have check engine light and a misfire. Technician will find a P0300 set. If the…
CADILLAC, CHEVROLET
Reported code forms P0300
GM: THE ENGINE MAY RUN ROUGH WITH THE CHECK ENGINE LIGHT ON/LOW COMPRESSION ON CYLINDER MISFIRE. STORED DTC P0300. THIS MAY BE DUE TO A PISTON IN THE CYLINDER CRACKED BETWEEN THE PISTON COMPRESSION RINGS. *JS
CADILLAC, CHEVROLET
Reported code forms P0300
Malfunction Indicator Lamp Flashes Due to Engine Misfire On Acceleration, DTC P0300 and/or P0303 Set Condition/Concern Some customers may comment that the Malfunction Indicator Lamp flashes when accelerating from a stop…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician with information regarding high misfire rates always on #1 cylinder. A customer may complain of misfires or roughness on cold start up…
CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that have check engine light and a misfire. Technician will find a P0300 set. If the…
CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that have check engine light and a misfire. Technician will find a P0300 set. If the…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician with information about vehicles that misfires or roughness on cold start up. Technician may find Diagnostic Trouble Code P0300 set.…