Removal Procedure

WARNING: This page is about a different car, the 2003 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

CAUTION: In order to avoid being burned, do not service the exhaust system while it is still hot. Service the system when it is cool.

CAUTION: Refer to BATTERY DISCONNECT CAUTION .

Disconnect the negative battery cable.
Raise and properly support the vehicle. Refer to JACKING AND LIFTING - AWD .

Fig 1: Removing Procedure Exhaust Manifold (2WD)
Courtesy of GENERAL MOTORS CORP.
Disconnect the Heated Oxygen Sensor electrical connectors.
- Disconnect the Heated Oxygen Sensor (HO2S1) electrical connector (1). Refer to HEATED OXYGEN SENSOR 1 or HEATED OXYGEN SENSOR 1 in Engine Controls - 1.8L (LV6) or HEATED OXYGEN SENSOR 1 Engine Controls - 1.8L (LNK).
- Disconnect the Heated Oxygen Sensor (HO2S2) electrical connector (2). Refer to HEATED OXYGEN SENSOR 2 or HEATED OXYGEN SENSOR 2 in Engine Controls - 1.8L (LV6) or HEATED OXYGEN SENSOR 2 Engine Controls - 1.8L (LNK).
Remove the exhaust pipe hangers (3).
Remove the following components from the exhaust manifold flange:
- 2 bolts (4)
- The springs (5)
Remove the exhaust manifold flange gasket.
Remove 1 bolt from the manifold support bracket to exhaust manifold.

Fig 2: Removing 1 Bolt From Manifold Support Bracket To Exhaust Manifold
Courtesy of GENERAL MOTORS CORP.
Remove the upper heat insulator bolts.
Remove the upper heat insulator.
On 1.8L LNK engine, remove the 3 exhaust manifold bolts (1-3) and 2 exhaust manifold nuts (4-5).

Fig 3: Removing 3 Exhaust Manifold Bolts (1-3) And 2 Exhaust Manifold Nuts (4-5)
Courtesy of GENERAL MOTORS CORP.
On 1.8L LV6 engine, remove the exhaust manifold bolts (1-5).

Fig 4: Removing Exhaust Manifold Bolts (1-5)
Courtesy of GENERAL MOTORS CORP.
On all engines, remove the following components:
- The exhaust manifold
- The exhaust manifold gasket
Remove the lower heat insulator bolts.
Remove the lower heat insulator.