Oil Leak by high pressure fuel pump.. READ ME!!
Hey guys looks like GM finally found the fix to all our oil leak problems have a look.(Sorry if a repost this came out on dec 3,09)
#09-06-01-014: Oil Leak by High Pressure Fuel Pump (Reseal Camshaft Cap) - (Dec 3, 2009)
Subject: Oil Leak by High Pressure Fuel Pump (Reseal Camshaft Cap)
Models: 2007-2009 Chevrolet Cobalt SS, HHR SS
2007-2009 Pontiac Solstice GXP
2007-2009 Saturn SKY Redline
2008-2009 Opel GT
2008 Daewoo G2X
Equipped with a RPO LNF Engine
Please Refer to GMVIS
Some customers may comment on an oil leak.
Upon further investigation, a technician may find oil leaking from the high pressure fuel pump area.
This condition may be caused by a camshaft cap that is not sealed correctly to the cylinder head, causing oil to leak out.
•Verify the customer's concern.
•Remove the fuel pump. Refer to Fuel Pump Removal in SI.
•Remove the camshaft cover. Refer to Camshaft Cover Removal in SI.
•Remove the camshaft cap (1). Remove all excess sealing material from both surfaces.
Note: It is critical during installation to ensure the bearing rear cap and cylinder head alignment is correct and the mating surfaces are flush.
• Ensure that all sealing material has been removed from the components and the sealing surfaces are clean and free of contamination prior to applying the sealer.
• Install and align the rear cap within 20 minutes of applying the sealer.
•Apply a 2.5 mm (0.1 in) bead of sealer, GM P/N 12378521 (in Canada, use P/N 88901148) to the cylinder head at the number 6 intake camshaft rear cap mating surface.
Note: Apply the sealer to all locations centrally locating the bead on the rail.
• Run the bead to 5 mm (0.2 in), dimension "a", as shown.
• Where the cap ends on the perimeter rail, extend bead approximately 4 mm (0.2 in) beyond edge of cap.
• Run bead, dimension "c", 32 mm (1.3 in) from the edge of the cylinder head as shown.
• Run bead, dimension "b", 20 mm (0.8 in) from edge of cylinder head as shown.
•Install the number 6 intake camshaft rear cap.
6.1. Tighten the cap bolts evenly to 5 N·m(44 lb in).
6.2. Tighten the cap bolts evenly to 10 N·m(89 lb in).
6.3. Back the cap bolts out 120 degrees.
6.4. Tighten the cap bolts evenly a final pass to 10 N·m(89 lb in).
•Install the camshaft cover and gasket, GM P/N 12609291. Refer to Camshaft Cover Installation in SI.
•Install the fuel pump. Refer to Fuel Pump Installation in SI.
Important: When installing the fuel pump, install a NEW high pressure fuel pump O-ring (GM P/N 12600313), high pressure fuel pump gasket-to-cylinder head (GM P/N12595951) and high pressure fuel pipe (GM P/N12615401).
Camshaft Cover Gasket
Gasket, High Pressure Fuel Pump Gasket
High Pressure Fuel Pump O-Ring
High Pressure Fuel Pipe
For vehicles repaired under warranty, use:
Reseal Camshaft Cap
*This is a unique labor operation for bulletin use only. It will not be published in the Labor Time Guide
GM bulletins are intended for use by professional technicians, NOT a "do-it-yourselfer". They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information.
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