Ford Power Stroke Fault Codes
Power Stroke is Ford's diesel engine family in the Super Duty pickup and medium-duty truck lineup. The first three generations (7.3L, 6.0L, 6.4L) were built by Navistar International; the current 6.7L "Scorpion" is Ford-designed and manufactured in-house. Each generation has its own common failure patterns, from the bulletproof 7.3L to the troubled 6.0L and the emissions-era 6.4L and 6.7L.
213 fault codes documented· 4 generations · P-codes + Ford-specific DTCs · 1994 - present
Most Common Power Stroke Fault Codes
Showing 24 of 213 Power Stroke codes, sorted by severity. Each links to causes, diagnostics, common fixes, and repair cost estimates.
POWERSTROKE-P0087-64 critical
Fuel Rail Pressure Too Low
POWERSTROKE-P0191 critical
Fuel Rail Pressure Sensor Performance
POWERSTROKE-P0192 critical
Fuel Rail Pressure Sensor Circuit Low Input
POWERSTROKE-P0193 critical
Fuel Rail Pressure Sensor Circuit High Input
POWERSTROKE-P003A serious
Turbocharger Boost Control 'A' Position Exceeded Learning Limit
POWERSTROKE-P0045 serious
Turbocharger Boost Control Circuit Open
POWERSTROKE-P0046 serious
Turbocharger Boost Control Circuit Range/Performance
POWERSTROKE-P0087-67 serious
Fuel Rail/System Pressure - Too Low
POWERSTROKE-P0201 serious
Injector Circuit Malfunction - Cyl 1
POWERSTROKE-P0202 serious
Injector Circuit Malfunction - Cyl 2
POWERSTROKE-P0203 serious
Injector Circuit Malfunction - Cyl 3
POWERSTROKE-P0204 serious
Injector Circuit Malfunction - Cyl 4
POWERSTROKE-P0205 serious
Injector Circuit Malfunction - Cyl 5
POWERSTROKE-P0206 serious
Injector Circuit Malfunction - Cyl 6
POWERSTROKE-P0207 serious
Injector Circuit Malfunction - Cyl 7
POWERSTROKE-P0208 serious
Injector Circuit Malfunction - Cyl 8
POWERSTROKE-P0235-64 serious
Turbocharger A Boost Sensor Malfunction
POWERSTROKE-P0235-73 serious
Turbocharger Boost Sensor A Circuit Malfunction
POWERSTROKE-P0236-64 serious
Turbo Boost Sensor Range/Performance
POWERSTROKE-P0236-67 serious
Turbocharger Boost Sensor A Performance
POWERSTROKE-P0236-73 serious
Turbocharger Boost Sensor Circuit Range/Performance
POWERSTROKE-P0237-60 serious
Turbocharger Boost Sensor A Circuit Low
POWERSTROKE-P0237-73 serious
Turbo Boost Sensor Low
POWERSTROKE-P0238-60 serious
Turbocharger Boost Sensor A Circuit High
Power Stroke Generations
| Engine | Years | Applications | Notes |
|---|---|---|---|
| 7.3L Power Stroke | 1994-2003 | Ford F-250/350/450/550, E-Series, Excursion | HEUI-injected pushrod V8 built by Navistar. Widely considered the most reliable Power Stroke ever. |
| 6.0L Power Stroke | 2003-2007 | Ford F-250/350/450/550, E-Series, Excursion | Known for EGR cooler failures, head gasket / head bolt (TTY) issues, FICM, and oil cooler clogging. Problematic. |
| 6.4L Power Stroke | 2008-2010 | Ford F-250/350/450/550 | First Power Stroke with DPF. Twin turbo, cracked pistons, fuel dilution in oil, cab-off repairs common. |
| 6.7L Power Stroke (Scorpion) | 2011-present | Ford F-250/350/450/550, F-600 (2020+) | First Ford-designed diesel. Single VGT turbo, inverted cylinder head layout. Generally reliable; CP4.2 pump concerns on earlier years. |
Common Power Stroke Issues
- 6.0L: EGR cooler failure leading to coolant in combustion, oil cooler clogging, head bolt stretch (requires head studs + gaskets)
- 6.4L: Cracked pistons, radiator cracking, fuel dilution in oil from regen strategy, DPF regeneration frequency
- 6.7L: CP4.2 high-pressure fuel pump failure (early years), turbo bearing failure, DEF system faults, EGT sensor issues
- 7.3L: Camshaft position sensor (CPS) failure, UVCH / valve cover harness connectors, glow plug relay
- Across generations: FICM power supply (6.0L), turbo actuator faults, exhaust back pressure sensor carbon fouling
See the full owner-reported problem breakdown for the 6.0L era: Ford F-250 Super Duty (2003–2007) reliability & recalls — built from 1,055 NHTSA complaints.