An air intake manifold collects and guides the intake track's airflow into the engine cylinder head. It is the final and most complex component of an engine's intake system, volumetrically tuned to deliver the most efficient flow of air possible. Even a small leak in any part of the intake manifold can result in poor engine performance, not to mention other technical complications. Therefore, faulty manifolds or gaskets should be replaced immediately to ensure the reliability of your vehicle.
Instructions
1. Drain approximately half of the vehicle's radiator fluid by removing the radiator drain plug with a socket wrench. This ensures that no coolant will leak onto or into the engine when removing the intake manifold's coolant lines.
2. Remove all lines that are connected to the intake manifold. These will vary depending on make and model. Generally there are multiple rubber lines installed onto manifold grommets. These can be removed by hand. Also, remove all sensors or other connections, generally secured via Phillips-head screws.
3. Remove all bolts securing the intake manifold to the engine. There will be several bolts connecting the manifold to the cylinder head. Also, there are four bolts that connect the intake manifold to the throttle body. Remove these, and the intake manifold will lift free from the engine.
4. Remove the old intake manifold gasket, and pick away any gasket residue from the side of your engine. Install the new intake manifold and gasket onto the engine by replacing the stock cylinder head bolts. Reinstall the stock throttle body bolts.
5. Reconnect all stock lines and sensors to the new throttle body by the opposite procedure of removal. Remove the vehicle's radiator cap, and refill the radiator with the appropriate amount of radiator fluid.
Tags: intake manifold, cylinder head, throttle body, intake manifold gasket, into engine, manifold gasket