Other information:
Overview
The
active grille shutter system is primarily used to improve fuel economy
by reducing aerodynamic drag while the vehicle is moving. It is also
used to shorten engine warm-up time, which increases engine efficiency
and provides faster heat delivery to the vehicle cabin...
Valve Train Analysis - Engine Off, Valve Cover Removed
NOTE:
The following component inspections are used to diagnose valve train concerns.
Check for damaged or severely worn parts and correct assembly.
Valve Train Analysis - Camshaft Lobe Lift
Remove the spark plugs...