TSBs

Cat Fails Prematurely on Chevy Cruze

June 7, 2022

This bulletin applies to 2016 Chevy Cruze and other 2016 GM cars and gasoline-powered light and heavy duty trucks. Technicians may encounter a concern where the catalytic converter has come apart or has set a P0420 and/or P0430 code.

Information courtesy of Mitchell 1,

Mike Mavrigian

If you believe the converter has failed for no apparent reason, it is recommended to inspect for a poor crimp for the coil grounds terminals on the engine block for the bank with the concern.

Inspect the ground for possible corrosion or damage at the ground terminal ring, fasteners and grounding surfaces. If no corrosion is found, tighten the ground bolt to specified torque.

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.

About the Author

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.