GM Service Manual Online
For 1990-2009 cars only
Makes
🢒
GMC_Truck
🢒
1999
🢒
Savana
🢒
Engine
🢒
Engine Exhaust
🢒 Exhaust Manifold Replacement
Exhaust Manifold Replacement Left Side
Removal Procedure
Remove the exhaust pipe from the exhaust manifold. Refer to
General Exhaust System Replacement
in Engine Controls.
Remove the engine cover. Refer to
Engine Cover Replacement
in Interior Trim.
Disconnect the oxygen sensor electrical connector.
Disconnect the EGR inlet pipe from the exhaust manifold. Refer to
Exhaust Gas Recirculation Valve Replacement
in Engine Controls.
Remove the spark plugs. Refer to
Spark Plug Replacement
in Engine Electrical.
Remove the exhaust manifold. Refer to
Exhaust Manifold Removal (Left)
in engine controls.
Clean all sealing surfaces. Refer to
Exhaust Manifold Clean and Inspect
in engine mechancial.
Installation Procedure
Install the exhaust manifold.
Connect the EGR inlet pipe to the manifold. Refer to
Exhaust Gas Recirculation Valve Replacement
in Engine Controls.
Install the spark plugs. Refer to
Spark Plug Replacement
in Engine Electrical.
Install the exhaust pipe to the exhaust manifold. Refer to
General Exhaust System Replacement
.
Connect the oxygen sensor electrical connector.
Install the engine cover. Refer to
Engine Cover Replacement
in Interior Trim.
Exhaust Manifold Replacement Right Side
Removal Procedure
Remove the exhaust pipe from the exhaust manifold. Refer to
General Exhaust System Replacement
in Engine Exhaust.
Remove the engine cover. Refer to
Engine Cover Replacement
in Interior Trim.
Disconnect the oxygen sensor electrical connector.
Remove the air cleaner assembly. Refer to
Air Cleaner Assembly Replacement
in Engine Controls.
Remove the oil level indicator tube. Refer to
Oil Level Indicator and Tube Replacement
.
Remove the exhaust manifold. Refer to
Exhaust Manifold Replacement
.
Clean all sealing surfaces. Refer to
Exhaust Manifold Clean and Inspect
.
Installation Procedure
Install the exhaust manifold. Refer to
Exhaust Manifold Replacement
.
Install the oil level indicator tube. Refer to
Oil Level Indicator and Tube Replacement
in Engine Mechanical.
Install the exhaust pipe to the exhaust manifold. Refer to
General Exhaust System Replacement
.
Connect the oxygen sensor electrical connector.
Install the air cleaner assembly. Refer to
Air Cleaner Assembly Replacement
in Engine Controls.
Install the engine cover. Refer to
Engine Cover Replacement
in Interior Trim.