See also:

Emissions Inspection and Maintenance Programs
Some local governments may have programs to inspect the on-vehicle emission control equipment. For the inspection, the emission system test equipment is connected to the vehicle’s Data Link Conn ...

Powertrain details
The GMC Sierra All Terrain HD concept is propelled by the new, production 6.6L Duramax turbo-diesel V-8 and Allison 1000 six-speed automatic transmission powertrain combination offered in the 2011 ...

Engine Compartment Overview
2.4L L4 Engine A. Engine Air Cleaner/Filter on page 10‑14. B. Engine Cover on page 10‑9. C. Engine Oil Dipstick (Out of View). See Engine Oil on page 10‑10. D. Engine Oil Fill ...