stealership just called
Parking brake was a loose sensor, already fixed
Mis fire is cylinder 1 with no compression either. Service manager said oil was on the plug as well so they are popping the head.
Bets on it being the DFM lifters? Any takers?
The only good news is the CPO warranty gives me a rental fully covered by Chevy so I'll be picking up a new 2024 Silverado to putz around in while they tear apart he engine....
Why did I buy this truck again