Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary information communicates A vehicle may have a concern of DTC P050D setting along with a P0300 after a cold start up. White smoke and/or coolant odor may come from exhaust for an extended period of time…
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
CADILLAC, CHEVROLET, GMC
Reported code forms P0300
This Preliminary Information communication provides information to the technician about vehicles that may have a Service Engine Soon Malfunction Indicator Lamp on and Diagnostic Trouble Code P0300 - P0308 may set.…
BUICK, CADILLAC, CHEVROLET, GMC, 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…
CHEVROLET, GMC
Reported code forms P0300
This Preliminary information communicates to the dealer technicians that DTC P0300 with engine misfires on paired cylinders may be caused by an internal ECM fault.
BUICK, CADILLAC, CHEVROLET, GMC, 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, 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…
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 a rough running engine, and/or oil consumption. Technician…
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…
CADILLAC, CHEVROLET, GMC
Reported code forms P0300
GMC/CADILLAC/CHEVROLET: CHECK ENGINE LIGHT ON, ENGINE MISFIRE, HARD START, ROUGH IDLE, HESITATION, LOSS OF POWER, POOR PERFORMANCE, NOISE, DTCS P0300, P0301, P0302,P0303, P0304, P0305, P0306, P0307, P0308 SET (REPLACE…
CADILLAC, CHEVROLET, GMC
Reported code forms P0300
EI07239 - 5.3L, LMG, LC9 DRIVEABILITY SYMPTOMS, HESITATION, MISS, LACK OF POWER, DTC P0300, P0301, P0302, P0303, P0304, P0305, P0306, P0307, P0308, P0171, P0172, P0174, P1174, P1175, CHECK ENGINE LIGHT, MIL, INJECTOR.…
CHEVROLET, GMC
Reported code forms P0300
FLEXIBLE FUEL (RPO L59) ROUGH IDLE, MISFIRE, MALFUNCTION INDICATOR LAMP DIAGNOSTIC TROUBLE CODE P0300. *TT
CHEVROLET, GMC
Reported code forms P0300
POOR ENGINE PERFORMANCE - MISFIRE, ROUGH IDLE, STALLS, ENGINE CRANKS BUT DOES NOT RUN, SERVICE ENGINE SOON/CHECK ENGINE LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE (DTC) P0300 SET. *TT
CHEVROLET, GMC, OLDSMOBILE
Reported code forms P0300
POOR ENGINE PERFORMANCE - MISFIRE, ROUGH IDLE, SERVICE ENGINE SOON/CHECK ENGINE LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE (DTC) P0300 SET. *TT
CHEVROLET, GMC, OLDSMOBILE
Reported code forms P0300
4.3L L35 ENGINE-DIAGNOSTIC TROUBLE CODE P0300 BUT NO MISFIRE CAN FELT. *MJ
CHEVROLET, GMC
Reported code forms P0300
MALFUNCTION INDICATOR LAMP ON WITH A P0300 SET AND A MISFIRE. VARIOUS MODELS INCLUDING 1996 - 1999 P32 MODELS. SIT BULLETIN 1416475. *TT
CHEVROLET, GMC
Reported code forms P0300
MALFUNCTION INDICATOR LAMP ON WITH A P0300 SET AND A MISFIRE. VARIOUS MODELS INCLUDING THE 1996-1999 P32 AND THE 1996-2002 GMC C/K TRUCK. *TT
CHEVROLET, GMC
Reported code forms P0300
SOME 4.3 LITER ENGINE EQUIPPED VEHICLES MAY EXHIBIT A ROUGH RUNNING CONDITION WITH POSSIBLE DIAGNOSTIC TROUBLE CODE P0300 SET. *TT
CHEVROLET, GMC
Reported code forms P0300
SOME DRIVERS MAY COMMENT ABOUT THE SERVICE ENGINE SOON LAMP ILLUMINATING. THE POWERTRAIN CONTROL MODULE MAY HAVE STORED A DIAGNOSTIC TROUBLE CODE P0300, ENGINE MISFIRE DETECTED. *TT
CHEVROLET, GMC
Reported code forms P0300
ROUGH IDLE, SERVICE ENGINE SOON (SES)LIGHT, UNSTABLE IDLE, HESITATION, SURGE OR STALLING. WITH DIAGNOSTIC TROUBLE CODES P0300, P0335 OR P0336. *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