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December 15, 2014 Service bulletin

MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension)

Jeep technical service bulletin 09-002-14 REV. B for 2011-2013 Jeep Grand Cherokee, 2012-2013 Jeep Wrangler and 2011-2013 Dodge Durango and others.

Bulletin number
09-002-14 REV. B
Component
Engine and engine cooling
Summary
MIL Illumination: P0300, P0302, P0304 or P0306 (X56 Warranty Extension) This bulletin involves checking for excessive cylinder leakage and replacing the cylinder head if necessary. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the Technician may find that any the following Diagnostic Trouble Codes have been set: P0300- Multiple Cylinder Misfire P0302- Cylinder 2 Misfire P0304- Cylinder 4 Misfire P0306- Cylinder 6 Misfire

Owners of these vehicles have filed 3,520 complaints in the engine category.

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