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engine/model/serk 6067MK6E 06R0727582
Freightliner tells me its not leaving any codes. First time it went in it was also whistling and they replaced the gaskets to the exhaust manifold. Their computer does not find any other codes for the loss of power (turbo stopping) eventhrough we have gone back twice after the turbo stopped on two consecutive days.
correction on the model: 2004 Freightliner CL120
We had a new turbo installed by Freightliner 9-25-2008. Are these parts Vpod, turbo boost sensor, vnt vanes, in the turbo or connected to the turbo. I want to know this so when I go back to Freighliner tomorrow I can check on the warranty of the Turbo.
The following pages identify a logical troubleshooting flow for specific operational concerns. The complaints and diagnostics are based on conditions identified by the DDC Customer Support Center at(NNN) NNN-NNNN Information in this publication is accurate as of March 2004.?
Note: Prior to performing any DDEC IV troubleshooting or testing procedures, please ensure that the engine's EGR system has been modified. Please refer to:
Note: You may also access these TS letters after logging into the DDC Extranet by clicking on Support, On-highway, Service Information, Service Information Letters, 2004-to-2006
Testing Procedures are:?
Perform the following steps for Intermittent Black Smoke .?
With power loss under heavy pull and 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.
Perform the following steps for Power Loss Under Heavy Pull .?
Note: The fuel injector may need to be replaced also.
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.?
For low boost under cold ambient conditions, clear fault codes and return the engine to service ?
Perform the following steps for codes indicating a derate condition, Flash Codes 14 (PID 110/FMI14 and Flash Code 29 (PID 404/FMI 14).?
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.
Perform the following steps for Flash Code 39 (SID 146/FMI 2, 7 or 12).?
Perform the following steps for Exhaust Fumes .?
Perform the following steps for Slobbering .?
Note: Review extraction for excessive idle time. Times of 35% and higher are considered excessive.
Perform the following steps for Engine Vibration .?
For engine backfire, engine misfire, and intermittent exhaust smoke reprogram the ECM.?
Note: If further repair, removal, and DDDL procedures are required when performing the testing procedures, please refer to the Series 60 Service Manual, (6SE483) or contact the EDS Support Line for DDDL specific questions.
Perform Test A as follows.?
PRESSURIZED CHARGE COOLER SYSTEM?
To avoid eye or face injury from flying debris, wear a face shield or goggles.?
Note: The pressure should have dropped significantly to approximately 9 psi.
Perform Test B as follows.?
Diesel engine exhaust and some of its constituents are known to the State of California to cause cancer, birth defects, and other reproductive harm.?
Note: Repeat this step three times.
Perform the following basic steps to check the exhaust gas recirculating system.?
For all EGR related concerns (may include exhaust smoke complaints), perform the following steps. If any corrections are made as a result of these checks, test the unit again before proceeding further:?
Basic checks for all Series 60 EGR engines require the following tools:?
Follow these steps to check the Delta P sensor and Barometric Sensor:?
To avoid injury from flying debris when using compressed air, wear adequate eye protection (face shield or safety goggles) and do not exceed 276 kPa (40 psi) air pressure.?
Note: Reversed and damaged hoses will have an adverse effect on engine performance resulting in black exhaust smoke and engine surging.
Follow these steps to check the VPOD input and output pressure:?
Note: Listen for air leaks at the VPOD during the test.
To avoid injury from the sudden release of a high-pressure hose connection, wear a face shield or goggles.?
Note: Both activations must operate their component with full travel of the linkage to hit the stops.
Testing steps are as follows.?
The following checks should be performed for the VPOD part number and supply voltage:?
The following checks should be performed for the VPOD wiring. ?
Note: VPOD power should have been verified under the part number check. If not, refer to the "Check Variable Output Pressure Device part number and Supply Voltage" section.
Check for active codes as follows:?
Note: FMIs listed as 14 are diagnostic information codes and no troubleshooting is required. For example, an engine derates due to high TCO temperature; a 404/14 code will be stored. This would indicate that conditions warranted having the ECM derate the fueling to the engine. If the customer complaint was a power loss, it could be explained that loss of power was done by the ECM to protect other engine components.
Follow these steps to test:?