TSBs

How to Fix Chevy Coolant Leak

Aug. 9, 2022

This bulletin applies to 2016-2018 Chevy Camaro and Corvette vehicles equipped with the 6.2L LTi or LY4 engine, which may experience a mystery coolant loss. If the coolant is low, pressure test the system looking for leaks at the outer cylinder head bolt locations.

Information courtesy of Mitchell 1,

Mike Mavrigian

This bulletin applies to 2016-2018 Chevy Camaro and Corvette vehicles equipped with the 6.2L LTi or LY4 engine. The engine may experience a mystery coolant loss.

If the coolant is low, pressure test the system looking for leaks at the outer cylinder head bolt locations.

If a leak at any head bolt locations is found, GM recommends replacing the cylinder head that shows the leak.

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.