GM 24503920
Exhaust Manifold, Passenger Side

The egr outlet pipe needs leak testing before right-hand Exhaust Manifold removal because a diagnostic failure prompts new egr adapter replacement. Start the service by removing the negative Battery Cable. Begin by removing Spark Plug wires from the spark plugs followed by unhooking the transmission oil level indicator together with its tube. You should start by taking off the oxygen sensor electrical connector followed by the two bolts fastening the right Exhaust Manifold to the crossover pipe. Raise and support the vehicle properly before taking out the front exhaust pipe from the Exhaust Manifold. Workers should start by lowering the vehicle before taking out the engine lift bracket and Exhaust Manifold studs then removing the Exhaust Manifold. Tear down the Exhaust Manifold installation by connecting it to the Cylinder Head and inserting all Exhaust Manifold studs and bolts then tighten them to 30 nm (22 ft. Lbs.). The front exhaust pipe should be installed onto the Exhaust Manifold after reattaching the engine lift bracket and raising the vehicle. Reduce the height of the vehicle while tightening the crossover pipe to the right Exhaust Manifold bolts to 20 nm (15 ft. Lbs.). You should complete the installation process by putting back the oxygen sensor electrical connector followed by the transmission oil level indicator and indicator tube then adding the throttle cable bracket and wire the Spark Plug wires to their spark plugs before connecting the negative Battery Cable.

Install the transaxle filler tube and the bolts securing the exhaust crossover to the right exhaust manifold, tightening them to 20 Nm (15 ft. lbs.). Finally, install the power brake booster heat shield to the exhaust crossover, secure it with the two nuts, tightening them to 20 Nm (15 ft. lbs.), reinstall the right side spark plugs, connect the heated oxygen sensor at the sensor pigtail, and install the fuel injector sight shield.

Disconnect the connector and hose from the secondary AIR valve.

Remove the left engine lift bracket retaining fasteners and the left engine lift bracket itself.

Begin by removing the fuel injector sight shield and disconnecting the heated oxygen sensor at the sensor pigtail.

Remove the fuel injector sight shield bracket retaining nuts and the bracket.

Remove the bolt securing the EGR inlet pipe to the right exhaust manifold.

Remove the oil level indicator and tube.

Remove the left exhaust manifold retaining fasteners.

Remove the right exhaust manifold retaining fasteners and the manifold along with its gasket, which should not be reused, and clean the right exhaust manifold.

Reinstall the oil level indicator and the tube.

Position it to the engine and install the retaining fasteners, tightening them to 30 Nm (22 ft. lbs.).