This bulletin applies to 2015 Jeep Wrangler vehicles built on or before March 16, 2015, and equipped with a 3.6L engine and six-speed manual transmission.
Customers may experience a MIL on, with a perceived misfire under normal acceleration and the starter protection feature may be disabled. DTC P1239 (engine oil temperature too low) may be stored.
Check for other DTCs and record/repair as needed before proceeding. Reprogram the PCM with the latest available software.
About the Author
Information courtesy of Mitchell 1
Information for Technical Service Bulletins comes from ProDemand, Mitchell 1's auto repair information software for domestic and import vehicles. Headquartered in San Diego, Mitchell 1 has provided quality repair information solutions to the automotive industry since 1918.
Mike Mavrigian
Motor Age Editor
Mike Mavrigian has written thousands of automotive technical magazine articles involving a variety of specialties, from engine building to wheel alignment, and has authored more than a dozen books that crisscross the automotive spectrum. Mike operates Birchwood Automotive, an Ohio shop that builds custom engines and performs vintage vehicle restorations. The shop also features a professional photo studio to document projects and to create images for articles and books.