Hi I own a 2004 Chevy Silverado V6 4.3 liter with 86k miles recently it has been stalling while idle and while driving. I replaced multiple sensors, the catalytic converter’s, the mass air flow sensor and fuel pump. The only codes it shoots off is an Evap, and Bank 1 Sensor 2 or something i forgot it’s the O2 Sensor towards the catalytic converters driver side. It starts and drives but when it gets up to running temp it begins to spit sputter and sometimes dies. There were a few times it didn’t start back up but it does now. I’m just really confused and hoping to get some help. Thanks.
those 4.3's were notorious for eating intake gaskets.
I'm having the same problem with mine.its after it get to running temp it will lug out.i thought maybe it was or could be the water pump not pumping water through like it's supposed to are maybe a throttle position sensor ..did u ever get it fixed?