SERVICE BULLETIN: 18-011-13 - 2011-2013 MK P050B-Rattle/Clunk on Cold Start Up
FYI – Ignore if not interested
SERVICE BULLETIN NUMBER: 18-011-13
GROUP: Vehicle Performance
DATE: March 06, 2013
Flash: MIL Illumination P050B and/or Rattle/Clatter Sound on Cold Start-up
This bulletin involves installing revised heater hoses, routing the purge solenoid wire harness, and installing revised Powertrain Control Module (PCM) software.
2011 - 2013 MK Compass/Patriot
NOTE: This bulletin applies to vehicles equipped with the 2.4L engine (Sales Code ED3) and either the Continuously Variable Transaxle (Sales Code DAV) or the Continuously Variable Transaxle with Off-Road Crawl Ratio (Sales Code
Customers may indicate that they hear a clatter or rattle noise coming from the engine on
initial start up after a long cold soak. A small number of customers may also experience a
Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician
may find that the following Diagnostic Trouble Code (DTC) has been set.
•P050B - Cold Start Ignition Timing Performance
Jeep Social Care Specialist