P247BExhaust Gas Temperature Out of Range (Bank 1 Sensor 4)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P247B concerns the last probe in the bank 1 chain. In Ford's 2015 6.7L overview that is EGT14, mounted downstream of the particulate filter, so it sees the heat that leaves the filter during regeneration. Ford's 2015 diesel summary is the only public maker document with this code; it pairs it with P2470 and P2471 and apply the same high-side limit of about 1150 °C, monitored continuously over some 2 s. The 2023 summary checks probe 4 against a model (P246E) instead. A real reading near the limit at the filter outlet hints at a thermal runaway in the filter, which can crack the substrate, so the vehicle should be inspected promptly.
- What you may notice
- MIL on
- Regeneration stopped, filter load warning possible
- Power reduction
- Likely causes
- LikelyThermal runaway in the particulate filter
- PossibleProbe reading too high
- RareUnburnt fuel reaching the filter from injectors or a dosing valve
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €50 – €2,500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.