This bulletin applies to 2011-2014 Jeep Grand Cherokee and Durango and 2012-2014 Jeep Wrangler vehicles equipped with a 3.6L engine.
The Mahle Original brand head gasket set for 1999 – 2006 Jeep 4.0 liter, 6-cylinder engines from Mahle Aftermarket Inc. features OE quality multi-layer steel (MLS) construction for both the head gasket and the intake/exhaust manifold gaskets.
This bulletin applies to 2011 Jeep Wrangler vehicles equipped with a 2.8L engine and air conditioning, built between Jan. 4, 2011, and Jan. 7, 2011.
This bulletin applies to 2009 Jeep Commander models equipped with a 3.7L V6 Magnum engine and automatic transmission. The MIL may be on, with DTC P013A (O2 sensor 1/2 slow response – rich to lean) and/or P013C (O2 sensor 2/2 slow response – rich to lean) stored in the PCM.
This bulletin applies to 2009-2011 Jeep Liberty vehicles equipped with a 3.7L engine and automatic transmission, built before Feb. 23, 2011. The MIL may be on, with DTC P0401 (EGR system performance) stored in the PCM. No other symptoms will be noted or experienced.
Owners of 2011-2013 Jeep Compass or Patriot vehicles equipped with a 2.4L engine and either the Continuously Variable Transaxle or the Continuously Variable Transaxle with Off-Road Crawl Ratio may complain of a clatter or rattle noise from the engine upon cold start-up after a long cold soak. A MIL may also be on, with DTC P050B (cold start ignition timing performance) stored.
This bulletin applies to 2012-2013 Jeep Compass models. A clicking or rubbing noise may be heard from the rear wheels at low speeds, primarily at the left rear wheel.
This bulletin applies to 2007 Jeep Commander vehicles equipped with the 5.7L engine. You may observe illumination of the courtesy lamps, a chime tone and the liftgate ajar indicator message when the liftgate is not open.
Owners of a 2008 Jeep Commander equipped with a 4.7L engine may complain about a hesitation between 38 and 45 mph. The issue involves an irregular, very short deceleration as if the vehicle is being “tugged” from behind. The condition is more noticeable during a light acceleration within the 38 to 45 mph vehicle speed.
This bulletin applies to 2009 Jeep Commander models equipped with the 5.7L V8 engine. Some customers may experience NVH (noise, vibration, harshness) issues when the vehicle is operating in the MDS mode, along with spark knock between 1,800 and 2,500 rpm. This bulletin involves selectively erasing and reprogramming the PCM.
Sign up for a FREE subscription to Auto Service Professional magazineSubscribe