Low Boost Under Cold Ambient Conditions; Flash Codes 14 And 29; Flash Code 39 - Detroit Diesel Series 60 EGR Technician Manual

Low Boost Under Cold Ambient Conditions

In extreme cold ambient conditions, the engine will operate in Condensation Protection.
During this mode of operation, the engine boost will be reduced and there is no reduction
of power. Operating in this mode is a normal operating condition and will not affect engine
life or performance.
NOTE:
Trucks operating with winter fronts will experience this condition less often. DDC's
recommendations have not changed regarding winter front usage.
For low boost under cold ambient conditions, clear fault codes and return the engine to service

Flash Codes 14 and 29

Perform the following steps for codes indicating a derate condition, Flash Codes 14 (PID
110/FMI14 and Flash Code 29 (PID 404/FMI 14).
1. Determine if derate is typical operation (refer to Appendix D, Service Information Letter
03 TS-23).
NOTE:
During Typical engine operating conditions, the engine will derate to prevent damage.
Higher ambient temperatures and loads will increase the frequency of DDEC applying
this derate logic. If the derate is occurring only occasionally, this is Typical. If the
derate occurs more than Typical for given operating conditions, continue investigation
for possible defects.
[a] If considered Typical, clear Fault Codes and return the engine to service.
[b] If determined to be abnormal frequency, perform step 2.
2. Remove the water pump and inspect the pump impeller.
[a] If the impeller is damaged, replace the water pump.
[b] If the impeller is not damaged, reuse the water pump and replace the EGR cooler.

Flash Code 39

Perform the following steps for Flash Code 39 (SID 146/FMI 2, 7 or 12).
1. Perform the checks in the "Exhaust Gas Recirculation System Basic Checks" section.
2. Perform Test A in the "Testing Procedures" section.
3. Test drive the vehicle with DDDL and perform a snapshot. Analyze the snapshot.
4. Inspect the VPOD air supply for leaks. If the VPOD air supply has leaks, repair the leak.
5. Perform Test B in the "Testing Procedures" section.
All information subject to change without notice. (Rev. June 2005)
7SE60 0506 Copyright © 2005 DETROIT DIESEL CORPORATION
SERIES 60 EGR TECHNICIAN'S MANUAL
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