Exhaust Manifold Installation

WARNING: This page is about a different variant/trim than selected.

Install a NEW exhaust manifold gasket (2).

Fig 1: Exhaust Manifold And Cylinder Head Bolts
Courtesy of GENERAL MOTORS COMPANY
Install the exhaust manifold (1) to the cylinder head.
Hand start NEW exhaust manifold to cylinder head retaining bolts (3).
Tighten the NEW exhaust manifold to cylinder head bolts three passes in sequence to 20 N.m (15 lb ft).

Fig 2: Exhaust Manifold Bolt Tightening Sequence
Courtesy of GENERAL MOTORS COMPANY

CAUTION: Refer to Fastener Caution .

NOTE: Fasteners have adhesive patch and must be tightened to final torque within 5 minutes.
Install the exhaust manifold brace (2).

Fig 3: Exhaust Manifold Brace Nuts
Courtesy of GENERAL MOTORS COMPANY
Install the exhaust manifold brace bolts (3) and tighten to 25 N.m (18 lb ft)
Install NEW exhaust manifold brace nuts (1) and tighten to 25 N.m (18 lb ft)
Install the exhaust manifold heat shield (1).

Fig 4: Exhaust Manifold Heat Shield Bolts
Courtesy of GENERAL MOTORS COMPANY
Install the exhaust manifold heat shield bolts (2) and tighten to 14 N.m (124 lb in).