Exhaust Manifold Installation - Left

WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.

NOTE: Refer to FASTENER NOTICE in Cautions and Notices.

Install the exhaust manifold studs.
Tighten

Tighten the exhaust manifold studs to 18 N.m (13 lb ft).
Install the exhaust manifold gasket.
Install the exhaust manifold.
Install the exhaust manifold nuts in sequence.
Tighten

Tighten the exhaust manifold nuts in sequence to 16 N.m (12 lb ft).
Install the left side spark plugs.
Tighten
- Tighten the spark plugs to 20 N.m (15 lb ft) when installing spark plugs into a new cylinder head.
- Tighten the spark plugs to 15 N.m (13 lb ft) when reinstalling after initial installation.
Fig 1: Installing Exhaust Manifold And Gasket
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 10 N.m (89 lb in).

Fig 2: Installing Exhaust Manifold Heat Shield And Bolts
Courtesy of GENERAL MOTORS CORP.