2019 Silverado facelift 5.3 103000 kms getting the generic Misfire code when I scan it it shows service esc, service parking break and a flashing CEL. It has a rough idle and clunks hard when coming to a stop almost like being rear ended. This isn’t what’s weird it also occasionally billows white smoke out of the tailpipe for around 10 seconds this only happens about once every 2000 Kms. It also backfires occasionally and sometimes is a little extra Smoky the smoke isn’t blue it’s a thick white but doesn’t smell like coolant it smells like gas the coolant and oil levels also never change the normal exhaust also smells very rich spark plugs look fine I changed them and the coils dealership says they don’t know what’s wrong with it can anyone provide me some insight?
2019 Silverado facelift 5.3 103000 kms getting the generic Misfire code when I scan it it shows service esc, service parking break and a flashing CEL. It has a rough idle and clunks hard when coming to a stop almost like being rear ended. This isn’t what’s weird it also occasionally billows white smoke out of the tailpipe for around 10 seconds this only happens about once every 2000 Kms. It also backfires occasionally and sometimes is a little extra Smoky the smoke isn’t blue it’s a thick white but doesn’t smell like coolant it smells like gas the coolant and oil levels also never change the normal exhaust also smells very rich spark plugs look fine I changed them and the coils dealership says they don’t know what’s wrong with it can anyone provide me some insight?