14076A - SERVICE UPDATE (REVISED ENGINE OIL SPEC). THIS BULLETIN PROVIDES A SERVICE PROCEDURE TO PERFORM A TEST PROCEDURE ON CERTAIN VEHICLES, EQUIPPED WITH A 1.2L ENGINE (LL0). IF THE VEHICLE DOES NOT PASS THE TEST PROCEDURE, DEALERS ARE TO REPLACE THE FOUR PISTON ASSEMBLIES. SOME CUSTOMERS HAVE COMMENTED ABOUT ENGINE KNOCK/TICK/RATTLE, SLUGGISH PERFORMANCE, AND POOR SHIFTS; HOWEVER, THE VEHICLE REMAINS OPERABLE.
