This information applies to 2009 vehicles equipped with a gasoline engine and Fuel Pump Control Module (FPCM).
On rare occasions, a customer may experience one or all of the following concerns:
1. Intermittent crank no start condition
2. Extended crank
3. Vehicle stall condition
4. One or all of the following codes:
- P069E, P0230 or U0109 set in the PCM
- P0606 set in the Fuel Pump Control Module (FPCM)
These symptoms may be the result of water intrusion ino the Fuel Pump Flow Control Module due to a disruption in the case seal.
Check the Fuel Pump Control Module (FPCM) for fuel control-specific DTCs (if communication is possible) before inspecting connections. Then refer to SI for those fuel control DTCs. If module replacement is required, replace the FPCM by following the Fuel Pump Flow Control Module replacement procedure in SI and using the special procedure below. Also clean or repair the related connector if necessary.
Before installing the new module, please follow instructions below to prevent the vehicle from returning.
1. Clean the backside surface by wiping or brushing to remove all dirt, grease, water, etc. Surface must be clean and dry.
2. Use GM approved RTV sealant p/n 12378521. (Canada p/n: 88901148).
3. Apply sealant to the joint between the aluminum back plate and the plastic housing (fig. 25).
4. Insure that the sealant fills the gap in the joint. Work the sealant into the joint using an index finger. Leave at least a 4mm wide bead on the surface (fig. 26).
TIP: Review the RTV manufacturer's MSDS before use. Wear chemical resistant gloves. Avoid contact of RTV with eyes, skin and clothing. Avoid breathing vapor and mist. Wash thoroughly after handling. Do not wear contact lenses.
5. Allow the sealant to cure at room temperature until it is firm and rubber like. This will usually take a full 24 hours to cure.
6. Install FSCM on vehicle.
- Thanks to Saundra Massingille
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