Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
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…
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, PONTIAC, SAAB
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find…
BUICK, CADILLAC, CHEVROLET, GMC, SATURN
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on. Technician will find Diagnostic Trouble Codes P0300, P0301,…
CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles that have Service Engine Soon Malfunction Indicator Lamp and the engine misfires. Technician may find Diagnostic Trouble…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find…
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, PONTIAC, SAAB
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp on, engine misfire, and/or engine noise. Technician may find…
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.…
BUICK, CADILLAC, CHEVROLET, GMC
Reported code forms P0300
BUICK/CADILLAC/CHEVROLET/GMC: ROUGH IDLE, ENGINE MISFIRE AND/OR CHECK ENGINE LIGHT ON, DTC P0300 (REPROGRAM ECM). *PE
CADILLAC
Reported code forms P0300
DTC P0300 COMPLETE BANK MISFIRES. *KB
CADILLAC
Reported code forms P0300
3.6 LY7 MISFIRE DTC P0300 P0301 P0302 P0303 P0304 P0305 P0306. *TT
BUICK, CADILLAC, CHEVROLET, GMC, HUMMER, PONTIAC
Reported code forms P0300
CHECK ENGINE LIGHT WITH A P0300 DUE TO 2-4 CYLINDERS MISFIRING ON THE SAME BANK OF THE ENGINE. *TT