PCBeachBum
New member
Took delivery of my white ZR2 on 11/14.
Since then I had the dealership install the GM Borla Exhaust and the kicker sub. Also had the windows tinted and did some mods at home, tonneau cover...etc. Honeymoon phase was going great, had about 1,000 miles on the truck with all but 200 miles being local small town driving/miles.
Over the last week or so I had noticed what felt like shuddering/jumping while cruising along while anywhere from 25-60MPH while at a low rpm. I was hoping that the engine was just relearning a few things after the exhaust swap and maybe it was DFM related. Late yesterday pulling up to a vendors place I noticed a rough idle. Did some googling and apparently a rough idle on the 6.2L is often brushed off as normal but mine had been butter smooth until that point so I knew that wasn't the case for me. I also knew though without a DTC I would probably be told it was normal.
I have done enough wrenching in my life that I knew in my heart it is a misfire. Cruising home about an hour later check engine light comes on and myChevrolet diagnostics immediately texts me to bring my truck in to "Service The Emission System." I start to hope on the way home that I was wrong about the misfire and maybe someone did something wrong on the exhaust install and it really is emissions related. Get home and pull the code.... DTC P0301 - Cylinder 1 Misfire.... good times.
Have an appointment for tomorrow morning. Question to you all is, do I drive it to the dealer? I am guessing that any damage has already happened. Dealership is about 10 miles away and there in no bad lifter knock, so maybe I'll get lucky and it's just spark or fuel related.
Loved the first 1,000 miles and hoping that maybe there is still a simpler issue than lifter replacement but we'll see.
Since then I had the dealership install the GM Borla Exhaust and the kicker sub. Also had the windows tinted and did some mods at home, tonneau cover...etc. Honeymoon phase was going great, had about 1,000 miles on the truck with all but 200 miles being local small town driving/miles.
Over the last week or so I had noticed what felt like shuddering/jumping while cruising along while anywhere from 25-60MPH while at a low rpm. I was hoping that the engine was just relearning a few things after the exhaust swap and maybe it was DFM related. Late yesterday pulling up to a vendors place I noticed a rough idle. Did some googling and apparently a rough idle on the 6.2L is often brushed off as normal but mine had been butter smooth until that point so I knew that wasn't the case for me. I also knew though without a DTC I would probably be told it was normal.
I have done enough wrenching in my life that I knew in my heart it is a misfire. Cruising home about an hour later check engine light comes on and myChevrolet diagnostics immediately texts me to bring my truck in to "Service The Emission System." I start to hope on the way home that I was wrong about the misfire and maybe someone did something wrong on the exhaust install and it really is emissions related. Get home and pull the code.... DTC P0301 - Cylinder 1 Misfire.... good times.
Have an appointment for tomorrow morning. Question to you all is, do I drive it to the dealer? I am guessing that any damage has already happened. Dealership is about 10 miles away and there in no bad lifter knock, so maybe I'll get lucky and it's just spark or fuel related.
Loved the first 1,000 miles and hoping that maybe there is still a simpler issue than lifter replacement but we'll see.
