How Much Should It Cost to Replace an Intake Manifold in 2024?

Replacing an intake manifold is a significant repair that can vary in cost depending on factors such as the make and model of your vehicle, the type of intake manifold needed, and the labor costs in your area. In 2024, the average cost to replace an intake manifold is around $361, but this can range from as low as $100 to as high as $1,900 or more.

What is an Intake Manifold?

An intake manifold is a crucial component of an engine that distributes the air-fuel mixture to the cylinders. It is a large housing with a series of passageways that carry air (and sometimes fuel) from the throttle body into the cylinder head and combustion chambers.

The intake manifold is attached to the throttle body on one end, which controls the amount of air entering the engine. On the other end, it bolts to the cylinder head. When the engine is running, air is drawn through the throttle body by a vacuum and then through the intake manifold runners into the intake ports of the cylinder head, where it mixes with fuel.

Intake manifolds come in various vehicle-specific designs, but their main purpose is to carry air from the throttle body to the cylinder head and combustion chambers. The manner in which they do this can differ, with some engines using vacuum to pull air through the manifold and others using pressurized air. Some engines even cool the air with engine coolant that passes through chambers inside the intake manifold.

Symptoms of a Faulty Intake Manifold

If your intake manifold is cracked or leaking, it can upset the air-fuel ratio and cause coolant and oil leaks. You might notice one or more of the following signs if your intake manifold is compromised:

Rough idling
Engine misfires
Decreased acceleration and power
Increased fuel consumption
Engine stalling
Coolant or oil leaks

A faulty intake manifold can affect the performance of the engine, leading to decreased power, decreased fuel efficiency, and potential engine damage. It can also affect the emissions system, leading to increased emissions and potential environmental damage.

It is not recommended to drive with a faulty intake manifold, as it can lead to engine damage and potentially dangerous driving conditions.

Factors Affecting Intake Manifold Replacement Cost

The cost to replace an intake manifold can vary depending on several factors:

Make and model of the vehicle: Some vehicles have more expensive or harder-to-find intake manifolds than others.
Type of intake manifold: Aftermarket or performance intake manifolds can be more expensive than OEM parts.
Labor costs: Labor costs can vary depending on your location and the mechanic’s hourly rate.
Extent of the damage: If the intake manifold is severely damaged or if there are additional issues like a coolant leak, the repair cost may be higher.

The cost of parts can range from $150 to $1,000, while the cost of labor can range from $350 to $500. In some cases, such as the 2012 Volkswagen CC example, the total cost for an intake manifold replacement can be as high as $1,900 or more.

Replacing the Intake Manifold

Replacing an intake manifold is a complex job that requires removing several components, including the throttle body, fuel lines, and wiring harnesses. The intake manifold is then unbolted from the cylinder head, and the new manifold is installed with new gaskets and seals.

It is important to use high-quality parts and materials when replacing an intake manifold to ensure proper fit and function. Aftermarket or performance intake manifolds can offer benefits such as improved airflow and increased horsepower, but they may also be more expensive than OEM parts.

If you are considering replacing your intake manifold, it is best to have the work done by a qualified mechanic who has experience with your specific make and model of vehicle. While it is possible to replace the intake manifold yourself, it is a complex job that requires specialized tools and knowledge.

To make your intake manifold last longer, it is important to follow the manufacturer’s recommended maintenance schedule and address any issues or symptoms promptly. Regular inspections and using high-quality parts can help prolong the life of your intake manifold and other engine components.