EGR cooler low efficiency is the Detroit DD Series (EPA 2007–Current) diagnostic trouble code SPN 4752/FMI 0 (GHG14) that flags reduced heat transfer across the exhaust gas recirculation cooler. This 2-page GHG14 fault-code sheet documents the monitored parameters and the 10% derate reaction, the dash-lamp indication and engine reaction, and the ordered troubleshooting steps used to confirm and clear the condition. The monitor watches the intake manifold temperature sensor under defined enabling conditions, the engine reaction is a 10% derate with the MIL and CEL on, and the procedure separates a sensor fault from a fouled or leaking cooler.
EGR cooler low efficiency document details
| Brand | Detroit (Detroit Diesel) |
|---|---|
| Model coverage | Detroit DD13, DD15 and DD16 engines |
| System / group | DD Series (EPA 2007-Current) / DTCs |
| Publication / source | Detroit Power Service Literature (TruckFaultCodes reference, 2017) |
| Emissions family | GHG14 |
| Pages | 2 |
| File size | 0.23 MB |
| Format | |
| Language | English |
Document table of contents
- Fault code description and enabling conditions
- Cooling system and fan operation check
- Intake manifold air temperature monitoring
- Intake manifold temperature sensor connector inspection
- EGR system external-leak inspection
- EGR piping removal and blockage check
- Cooler cleaning or replacement on DD13, DD15 and DD16
Applicable truck models
This fault-code procedure applies to trucks powered by the Detroit DD13, DD15 and DD16 engines on the DD Series (EPA 2007–Current) platform. The technician first rules out cooling-system and fan concerns, reads the intake manifold air temperature against 93°C, inspects the sensor connector for pin damage, checks the EGR system for external leakage, and removes the hot pipe, crossover tube and mixer pipe to find excessive build-up before cleaning the piping and replacing the cooler on the DD13, DD15 or DD16. Always confirm the engine family and GHG14 emissions level against the vehicle, and cross-check the latest procedure in the Detroit Power Service Literature on the official Detroit website.
Who needs this EGR cooler low efficiency manual
Diesel technicians, fleet maintenance teams and workshop owners diagnosing reduced cooler heat transfer, a 10% derate or an emissions MIL on Detroit DD Series trucks use this sheet to work the fault in order instead of guessing. The sensor-first sequence prevents replacing a costly cooler when the intake manifold temperature sensor is the real fault.
The complete 2-page PDF is available in the DiagTechPro manuals library; a free account is required to download it.
Related manuals library
Sản phẩm liên quan cho hãng này
Cùng brand theo taxonomy hiện có trong catalog WooCommerce.
Detroit Diesel Reports 6.3
Detroit Reprogramming Station (DDRS) 7.11
DDDL Backdoor Password: A Comprehensive Guide
