TSBs

Photo courtesy of Mitchell 1
Example of a mechanically operated exhaust valve.
This bulletin applies to 2016-2024 Chevy Camaro vehicles equipped with an LGX, LT1 or LT4 engine. The check engine light may be on and/or an exhaust noise may be heard.
July 22, 2025
Photo courtesy of Mitchell 1
Clean the axle bellows boots and apply a thin coat of spray wax.
Photo courtesy of Mitchell 1
Clean the solenoid mounting area before removal. Torque each solenoid bolt to 9 ft.-lb.
Photo courtesy of Mitchell 1
Inspect for dirt/rust.
Photo courtesy of Land Rover
The PCM needs to identify a variety of engine running conditions in order to re-learn the adaptations, allowing the EV driving mode to operate as expected.
Photo courtesy of Mitchell 1
Check that the vacuum line is seated correctly at the control box.
Photo courtesy of Mitchell 1
Example of male thread damage caused by the use of a power tool.
Photo courtesy of Mitchell 1
Inspect wiring for damage.
Photo courtesy of General Motors
Reprogram the brake system control module with the latest software.

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