Exhaust Manifold Installation

WARNING: This page is about a different car, the 2008 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.

NOTE: Refer to Fastener Notice .

Install new exhaust manifold studs.
Tighten: Tighten the studs to 15 N.m (11 lb ft).

Fig 2: Identifying Block Heater

Courtesy of GENERAL MOTORS CORP.

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

Fig 3: View Of Exhaust Manifold, Gasket & Nuts

Courtesy of GENERAL MOTORS CORP.

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

Fig 4: Exhaust Manifold Bolt Tightening Sequence

Courtesy of GENERAL MOTORS CORP.

Tighten the NEW exhaust manifold to cylinder head retaining nuts in sequence.
Tighten:
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: View Of Exhaust Manifold Heat Shield

Courtesy of GENERAL MOTORS CORP.

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