Envoy 4WD V8-5.3L (2007)
Exhaust Manifold: Specifications
Exhaust Manifold - Left Side/Right Side
Important: Do not apply sealant to the first 3 threads of the bolt.
Exhaust Manifold Bolt (5.3L)
Install the exhaust manifold NEW gasket and bolts.
First Pass ............................................................................................................................................................................................... 15 N.m (11 lb ft).
Tighten the bolts beginning with the center 2 bolts. Alternate from side-to-side, and work toward the outside bolts.
Final Pass .............................................................................................................................................................................................. 25 N.m (18 lb ft).
Tighten the bolts beginning with the center 2 bolts. Alternate from side-to-side, and work toward the outside bolts.
Exhaust Manifold Heat Shield Bolts ............................................................................................................................................................ 9 N.m (80 lb in)
Exhaust Manifold Studs .............................................................................................................................................................................. 20 N.m (15 lb ft)
