99066C
Service Bulletin/Repair Instructions
SOME OWNERS OF 1996 - 1998 MODEL YEAR S/T, M/L, C/K, G, P AND W4 TRUCKS, THAT ARE REGISTERED IN CALIFORNIA, EQUIPPED WITH 4.3L, 5.0L OR 5.7L ENGINE, AND CALIFORNIA EMISSIONS, MAY EXPERIENCE A SERVICE ENGINE SOON LIGHT, MISFIRE, ROUGH IDLE OR HARD START DUE TO A DEPOSIT BUILD-UP ON THE SEQUENTIAL CENTRAL PORT FUEL INJECTOR (SCPI) POPPET VALVE(S). *TT