▲ 195 ▼ g/auto • 1 months ago Diesel DEF system faults — when to replace vs clean the dosing module? 💬 3 replies
▲ 176 ▼ g/auto • 1 months ago Regen not completing on a 2021 Peterbilt 579 — DPF issue or active regen inhibit? 💬 3 replies