exhaust
Air Injection Check Valve Torque Specs
for 2011 GMC Yukon 5.3L V8 · RWD
8 fasteners
—
Exhaust Flange Bolts
Apply anti-seize
33 lb-ft · 45 Nm
—
—
Flange Bolts
Apply anti-seize
44 lb-ft · 60 Nm
—
—
Manifold Nuts
Apply anti-seize
31 lb-ft · 42 Nm
—
—
O2 Sensor
Apply anti-seize to threads only
33 lb-ft · 45 Nm
—