Exhaust Manifold Installation

WARNING: This page is about a different car, the 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Exhaust Manifold Studs

Courtesy of GENERAL MOTORS CORP.

CAUTION: Refer to Fastener Caution .

Install new exhaust manifold studs and tighten to 20 N.m (15 lb ft).

Fig 2: Block Heater

Courtesy of GENERAL MOTORS CORP.

Install the block heater, if equipped. Tighten the block heater bolt to 10 N.m (89 lb in).

Fig 3: Identifying Exhaust Manifold, Exhaust Manifold Gasket and Nuts

Courtesy of GENERAL MOTORS CORP.

Install the exhaust manifold gasket (2).
Install the exhaust manifold (1) to the cylinder head.

NOTE: Install the Torx® nut (3) in the correct location.

Install NEW exhaust manifold to cylinder head retaining nuts finger tight.

Fig 4: Exhaust Manifold Bolt Tightening Sequence

Courtesy of GENERAL MOTORS CORP.

NOTE: Use an inverted Torx® socket E16 to tighten the Torx® nut.

Tighten the NEW exhaust manifold to cylinder head retaining nuts in sequence.
1. Tighten the exhaust manifold nuts to 14 N.m (10 lb ft) .
2. Tighten the exhaust manifold nuts a second time to 14 N.m (10 lb ft) .

Fig 5: Exhaust Manifold Heat Shield

Courtesy of GENERAL MOTORS CORP.

Install the exhaust manifold heat shield.
Install the exhaust manifold heat shield bolts and tighten to 25 N.m (18 lb ft).