Savana 3500 V8-6.6L DSL Turbo VIN 6 (2007)
Technical Service Bulletin # 08-06-04-029C
Date: 090720
Fuel System - MIL ON/DTC P0087/No Power/Runs Rough
TECHNICAL
Bulletin No.: 08-06-04-029C
Date: July 20, 2009
Subject: LBZ, LLY, LMM MIL/SES Light On, DTC P0087- Fuel Rail Pressure (FRP) Too Low, Lack of Performance, No Power, Engine Runs Rough,
No Start (Diagnose Fuel System Components)
Models:
2006-2007 Chevrolet Express, Kodiak C4500/C5500 Series, Silverado, Silverado Classic
2006-2007 GMC Savana, Sierra, Sierra Classic, TopKick C4500/C5500 Series
Equipped with 6.6L Duramax (TM) Diesel Engine RPOs LBZ, LLY, LMM
Refer to GMVIS
Attention:
Please check the vehicle repair order history to determine if a replacement fuel injection pump has already been installed for the above symptoms. If the
fuel injection pump has been already replaced, then do not install another new fuel injection
pump. The purpose of this bulletin is to aid technicians in the diagnosis and repair of fuel systems components on the Duramax(TM) Diesel Engine.
Supercede:
This bulletin is being revised to advise technicians that all parts are to be returned to the WPC. Please discard Corporate Bulletin Number
08-06-04-029B (Section 06 - Engine/Propulsion System).
Condition
Some customers may comment on an illumination of the MIL/SES with one or more of the following symptoms:
-
Lack of Performance
-
No Power
-
Engine runs rough
-
Lack of power
-
Vehicle may not start
Upon further investigation, the technician may find DTC P0087- Fuel Rail Pressure (FRP) Too Low stored in the ECM.
Cause
A ceramic high pressure valve ball fracture inside the fuel injection pump may lead to internal pump damage resulting in low fuel rail pressure. This
condition may contaminate the common fuel rails and fuel injectors with debris. The fuel injection pump may operate, but with reduced output flow.
A high pressure valve fracture may cause the fuel injection pump cup plug (1) to come out, resulting in a no start condition and a possible fluid leak.
Bulletin Diagnostic Tips
