P2463 on RAM
Diesel Particulate Filter Restriction - Soot Accumulation
P2463 on RAM vehicles indicates diesel particulate filter restriction - soot accumulation. Au7o has documented this code across 1 RAM model — most commonly on 2500. This diesel emissions code means the engine computer has detected that the diesel particulate filter (DPF) is restricted by excessive soot buildup. The DPF traps soot from the exhaust and periodically burns it off during a regeneration cycle; the computer monitors exhaust back-pressure to judge how full it is. When soot accumulates beyond a programmed threshold — often because regeneration hasn't completed successfully — this code sets. You may notice reduced power, more frequent regeneration, higher fuel use, or a limp/derate mode if the restriction worsens. Typical repair costs on RAM range from $300 to $3,500, depending on the specific model and root cause.
Common Causes of P2463
- •Incomplete DPF regeneration (frequent short trips, low-speed driving)
- •Excessive soot loading from worn/faulty injectors or engine wear
- •Faulty DPF differential pressure sensor or clogged sensor hoses
- •Low or incorrect diesel exhaust fluid affecting regen
- •Failed EGR system causing high soot output
- •Clogged or physically damaged DPF
- •Exhaust/sensor wiring or temperature-sensor faults
P2463 on RAM by Model
RAM 2500(1 issue)
- Diesel Exhaust Fluid (DEF) System Failures2013-2025
The 2013+ RAM 2500 6.7L Cummins diesel DEF (Diesel Exhaust Fluid) system is plagued with failures of the DEF heater, DEF pump, DEF injector, NOx sensors, and SCR catalyst. The DEF system is required for emissions compliance, and when it fails, the truck enters a "limp mode" that limits speed to 5 mph after a countdown timer expires. DEF heater failures are most common in cold climates where the fluid freezes and cracks the heater element. TSB 18-018-20 addresses DEF heater and quality sensor issues. The NOx sensors (inlet and outlet) fail frequently at $300-500 each.
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View P2463 across all makes →Frequently Asked Questions
What does P2463 mean on RAM?▼
P2463 stands for "Diesel Particulate Filter Restriction - Soot Accumulation." This diesel emissions code means the engine computer has detected that the diesel particulate filter (DPF) is restricted by excessive soot buildup. The DPF traps soot from the exhaust and periodically burns it off during a regeneration cycle; the computer monitors exhaust back-pressure to judge how full it is. When soot accumulates beyond a programmed threshold — often because regeneration hasn't completed successfully — this code sets. You may notice reduced power, more frequent regeneration, higher fuel use, or a limp/derate mode if the restriction worsens. On RAM specifically, this code is documented across 1 model.
What causes P2463 on RAM vehicles?▼
Common causes on RAM: Incomplete DPF regeneration (frequent short trips, low-speed driving), Excessive soot loading from worn/faulty injectors or engine wear, Faulty DPF differential pressure sensor or clogged sensor hoses, Low or incorrect diesel exhaust fluid affecting regen, Failed EGR system causing high soot output. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P2463 on a RAM?▼
Repair costs on RAM range from $300 to $3,500, depending on the specific model and root cause.
Which RAM models have P2463 documented?▼
Au7o has documented P2463 on 1 RAM model: 2500.