Left Secondary Timing Chain Tensioner

WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Checking Left Secondary Timing Chain Tensioner

Courtesy of GENERAL MOTORS CORP.

Inspect the left secondary timing chain tensioner for damaged plunger-to-shoe contact surface (1).
Inspect the left secondary timing chain tensioner for locked or binding timing chain tensioner. Reset the plunger (3) and ensure the plunger moves freely (2) in and out of the body of the tensioner. Refer to Secondary Timing Chain Tensioner Installation - Left Side .
Replace a damaged left secondary timing chain tensioner.