1999 Chevrolet C/K Series TSBs

A FAILURE OF THE ELECTRONIC DIESEL FUEL INJECTION PUMP, LEAKING TO COMPLAINTS OF POOR PERFORMANCE OR FUEL ECONOMY, HARD...

SOME OWNERS WITH VEHICLES BUILT BEFORE JANUARY 15,1999 MAY COMMENT ON A HARSH 1-2 UPSHIFT AND MAY ALSO HAVE A CHECK ENGINE LIGHT.

INFORMATION PERTAINING TO THE NEW CONTROL VALVE BODY, SPACER PLATE AND GASKETS FOR THE 4L60-E AUTOMATIC TRANSMISSION.

SOME VEHICLES MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START DUE TO A DEPOSIT BUILD-UP ON...

SOME OWNERS OF 1996 - 1999 S/T, M/L, C/K, G, P AND W4 TRUCKS MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH...

SOME OWNERS OF 1996 - 1998 MODEL YEAR S/T, M/L, C/K, G, P AND W4 TRUCKS, THAT ARE REGISTERED IN CALIFORNIA, EQUIPPED...

6.5L L49 L56 L57 L65 DIESEL ENGINE REQUIRING FUEL INJECTION PUMP REPLACEMENT.

ROUGH IDLE AFTER START, AND/OR A SERVICE ENGINE SOON (SES) LIGHT.

MALFUNCTION INDICATOR LAMP (MIL) ON, TRANSMISSION STUCK IN THIRD GEAR, INSTRUMENT CLUSTER INOPERATIVE.

INFORMATION ON AUTOMATIC TRANSMISSION PERFORMANCE DURING COLD WEATHER OPERATION.

THIS BULLETIN IS TO INFORM DEALERS OF THE RELEASE OF A NEW TORQUE CONVERTER BOLT FOR CERTAIN TRANSMISSIONS.

A NO REVERSE, NO SECOND GEAR, OR NO FOURTH GEAR CONDITION.

SOME CUSTOMERS MAY EXPERIENCE A FAILURE OF THE ELECTRONIC DIESEL FUEL INJECTION PUMP.

SUBJECT REGARDING EXHAUST SYSTEM RUMBLE / RATTLE NOISE.