This bulletin applies to 2014-2019 Chevy Corvette vehicles equipped with a 6.2L LT1 or LT4 engine.

The SES light may be on, accompanied by DTC P0106 and P0506.
This may be caused by a broken valve spring.

Remove the valve covers and inspect the springs.
Replace the broken spring(s) providing the valve did not drop and damage the piston and/or the cylinder wall.


If a broken valve spring is found, inspect the intake manifold for a collapsed runner.

Team ZR-1
True Custom Performance Tuning