Any Resolutions On P0300 Random Misfires On 6.0

[PACKORACKDAD]

I THINK I'VE READ OF SEVERAL OF US CHASING RANDOM MISFIRES ON 6.0 GM, HAS ANYONE RESOLVED THEIRS? I HAVE A 03 1 TON AND HAVE FOLLOWED EVERYONE ELSES SEQUENCES OF EVENTS, SPARK PLUGS, WIRES, AIR FILTER, FUEL FILTER, REPLACED CAT CONVS/AND CHECKED FOR INTAKE LEAKS. IT RUNS FINE AT START UP BUT AFTER 30-40 MINUTES OF DRIVING THE SES LIGHT BEGINS TO BLINK AND STARTS TO MISS AND AC QUITS WORKING, PULL OVER TURN IT OFF FOR 5 SECONDS AND YOU ARE GOOD TO GO FOR ANOTHER 10-15 MINUTES (SOMETIMES LONGER). TOOK IT IN A COUPLE TIMES TO MY LOCAL SERVICE CENTER, NO HELP. RANDOM MISFIRES ON RIGHT BANK ONLY SWITHCHED COILS, CLEANED INJECTORS, NO DIFFERENCE THEY FINALLY SAID THEY COULD FIGURE IT OUT SO SORRY. ANYONE FIGURED THEIRS OUT? THANKS, SCOTT

[PACKORACKDAD]

I THINK I'VE READ OF SEVERAL OF US CHASING RANDOM MISFIRES ON 6.0 GM, HAS ANYONE RESOLVED THEIRS? I HAVE A 03 1 TON AND HAVE FOLLOWED EVERYONE ELSES SEQUENCES OF EVENTS, SPARK PLUGS, WIRES, AIR FILTER, FUEL FILTER, REPLACED CAT CONVS/AND CHECKED FOR INTAKE LEAKS. IT RUNS FINE AT START UP BUT AFTER 30-40 MINUTES OF DRIVING THE SES LIGHT BEGINS TO BLINK AND STARTS TO MISS AND AC QUITS WORKING, PULL OVER TURN IT OFF FOR 5 SECONDS AND YOU ARE GOOD TO GO FOR ANOTHER 10-15 MINUTES (SOMETIMES LONGER). TOOK IT IN A COUPLE TIMES TO MY LOCAL SERVICE CENTER, NO HELP. RANDOM MISFIRES ON RIGHT BANK ONLY SWITHCHED COILS, CLEANED INJECTORS, NO DIFFERENCE THEY FINALLY SAID THEY COULD FIGURE IT OUT SO SORRY. ANYONE FIGURED THEIRS OUT? THANKS, SCOTT

 

 

MY P0300 RANDOM MISFIRE WAS FIXED. I HAD AN AIR CONDITIONING LINE DROPPING CONDENSATION ON AN 02 SENSOR. 500 BUCKS FOR TWO NEW SENSORS AND REROUT OF THE LINE.