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SOME 2008 Cobalt/G5 (all engines) will exhibit an engine oil pan drain plug issue. Please be familiar with the below TSB to make sure IF your car is affected by this issue, you can fix it to avoid a very serious problem later. See below.


This applies to cars built between certain build dates ,so you might want to check yours .

#PIP4415: Heli-Coil Moves When Removing And/Or Installing Engine Oil Drain Plug (May 8, 2008)

Subject: Heli-Coil Moves When Removing and/or Installing Engine Oil Drain Plug

Models: 2008 Chevrolet Cobalt, Cobalt SS, HHR, HHR SS, Malibu

2008 Daewoo G2X

2008 Opel GT

2008 Pontiac G5, G6, Solstice, Solstice GXP

2008 Saturn Aura, Sky, Sky Redline, Vue

Manufactured between 3/20/2008 - 4/30/2008

with 2.0L, 2.2L, or 2.4L Engine (RPOs L61, LAT, LE5, LNF)


The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

When removing or installing the engine oil drain plug, the heli-coil may come out of position. In some instances it may come out with the drain plug. This is the result of an issue with the original heli-coil, not the oil pan.

If this concern is encountered, remove the oil heli-coil and install a new one using a M12 x 1.75 heli-coil from a local supplier. The instructions from the heli-coil supplier should be used. If necessary, several heli-coil suppliers can be located on the internet by entering "heli-coil" in the internet browser and clicking search.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

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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