Rick's Free Auto Repair Advice

Jeep misfire

Jeep misfire problem and solution

Jeep has issued a service bulletin #09-002-14 REV. B, and warranty extension on the vehicles listed below to fix Jeep misfire codes

P0300- Multiple Cylinder Misfire
P0302- Cylinder 2 Misfire
P0304- Cylinder 4 Misfire
P0306- Cylinder 6 Misfire.

Jeep has discovered excessive cylinder leakage as the cause of the misfire problems.

Vehicles affected by bulletin #09-002-14 REV. B

2011 – 13 (JC) Journey
2012 – 13 (JK) Wrangler
2011 – 13 (JS) 200/Avenger
2011 – 13 (LC) Challenger
2011 – 13 (LD) Charger
2011 – 13 (LX) 300
2011 – 13 (RT) Grand Caravan/Town & Country
2011 – 13 (WD) Durango
2011 – 13 (WK) Grand Cherokee

The bulletin recommends performing a cylinder leakdown test on cylinders 2, 4 and 6. If the cylinders leak 25% or more, the fix requires replacing the left cylinder head.

Chrysler has extended the warranty on the left cylinder heads of Pentastar engines for model years 2011 and 2012, and some vehicles from the 2013 model year. Warranty bulletin D-14-12, dated June 10, 2014, tells dealers which vehicles are covered — for ten years or 150,000 miles, whichever comes first.

©, 2019 Rick Muscoplat

Posted on by Rick Muscoplat



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