The DPF inlet pressure hose fault sheet is the official Detroit DD Series diagnostic for a DPF inlet-pressure hose assembly fault, stored under SPN 3251 FMI 16 for EPA07, GHG14 calibrations. It records the monitored parameter DPF inlet pressure, exactly as published by TruckFaultCodes.com (© 2017).
Official document details
| Brand | Detroit |
|---|---|
| Model coverage | Detroit DD Series diesel engines (EPA 2007-current) |
| System / Group | DD Series (EPA 2007-Current) / DTCs |
| Fault code | SPN 3251 / FMI 16 |
| Fault condition | Diesel Particulate Filter (DPF) Inlet Pressure Hose Assembly |
| Monitored parameter | DPF inlet pressure |
| Emissions calibration | EPA07, GHG14 |
| Source / Publisher | TruckFaultCodes.com |
| Year / Revision | 2017 |
| Pages | 4 |
| File size | 0.3 MB |
| Format | |
| Language | English |
Document table of contents
- Fault code identification: SPN 3251, FMI 16
- Description and monitored parameter
- Typical enabling conditions
- Troubleshooting steps
- Component inspection and repair verification
DPF inlet pressure hose troubleshooting steps
The sheet has the technician inspect the DPF inlet-pressure hose assembly for kinks, leaks, soot blockage or loose fittings, confirm the routing, and replace the hose where the reading stays out of range.
Applicable truck models
This code sheet applies to trucks powered by Detroit DD Series diesel engines built to the EPA07, GHG14 emissions calibration; always match the SPN 3251 FMI 16 listing to the vehicle’s own engine family before repair. Confirm the emissions family on the vehicle emissions label, because aftertreatment and dosing hardware differs between the EPA07, EPA10 and GHG14 builds and a mismatched procedure can send you to the wrong component. For engine coverage and dealer service information, see the Detroit Diesel official website.
Who needs this DPF inlet pressure hose manual
Fleet technicians and independent workshops that service Detroit DD Series engines use this inlet pressure hose reference to confirm the code, its enabling conditions and the correct repair before replacing parts. It is written for the mechanic making the repair decision, not the driver, and pairs with the wiring diagrams and component removal procedures Detroit publishes in Power Service Literature.
The full PDF is available in the DiagTechPro manuals library; a free account is required to download it.
Related manuals library
