It sounds like you dodged a bullet with your 2019 Trail Boss 5.3. Even though it experienced a lifter issue back in May at 34,000 miles, the extended warranty came through for you! That's fantastic, especially considering the repairs could have cost around $9800. Sure, being without your truck for a month wasn't ideal, but at least the out-of-pocket expense was minimal at $107.
Now, you're wondering if this is a one-time thing or if there's a chance it could happen again. The long diagnosis time suggests there might be something else going on, possibly related to the Dynamic Fuel Management (DFM) system. Here's the good news again: There's a chance the dealership addressed the DFM system during the repair with invoice, potentially preventing future issues.
Regards: 1win apk