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Intake Manifold Gasket Replacement Cost

Estimates last updated August 7, 2026

1999 Toyota Sienna Intake Manifold Gasket Replacement Cost

The average cost for a 1999 Toyota Sienna Intake Manifold Gasket Replacement is between $909 and $1,127.

Labor costs are estimated between $427 and $627 while parts are priced between $482 and $501.
This range does not include taxes and fees, and does not factor in your unique location. Related repairs may also be needed.
For a more accurate estimate based on your location, use our Fair Price Estimator below.

Intake Manifold Gasket Replacement

What is an intake manifold gasket?

For the engine to run, the intake manifold has to be properly sealed to the cylinder head. The intake manifold gasket does this. It may be made of rubber or paper.

How does the intake manifold gasket work?

The intake manifold is a distribution system for air, and sometimes fuel. As the throttle body opens, the engine intake stroke sucks in air through the intake manifold. Cars that don't use direct injection will distribute fuel this way as well, but this system is becoming less common. Negative pressure, or a vacuum, builds up inside the intake manifold, and the manifold gasket is used to prevent any unwanted air from entering the system.

An intake manifold gasket can be the source of a vacuum leak and/or engine coolant leak.

An intake gasket with a vacuum leak will often have a rough idle and engine misfires. This may turn on the Check Engine Light and set misfire and/or fuel mixture "out of range" trouble codes.

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Toyota Intake Manifold Gasket Replacement Cost Estimates

The average cost for a Intake Manifold Gasket Replacement is between $909 and $1,127 but can vary from car to car.

Toyota Sienna Intake Manifold Gasket Replacement Cost by Year

The average cost for a Toyota Sienna Intake Manifold Gasket Replacement is between $909 and $1,127 but can vary from car to car.

Disclaimer

Materials Included Under License from Toyota Motor Sales, U.S.A., Inc. License Agreement TMS1008. All information contained in any materials obtained about Toyota, Lexus, and Scion vehicles is based on the latest product information available at the time of publication, is provided “as is” without warranty of any kind, and is intended for service providers and other interested parties in Canada, Mexico, and the United States of America, including Guam, Puerto Rico, and the U.S. Virgin Islands. Specifications and procedures are subject to change without notice. This information is provided expressly for the purpose of use by professional automobile technicians who have special techniques and certifications. Repair or service by non-specialized or uncertified technicians using only this information, or without proper equipment or tools, may cause severe injury to the individual or other individuals and could possibly cause damage to the vehicle. Certain procedures or content elements may make reference to Toyota Warranty policy or practice – these policies or practices are only applicable to Toyota, Lexus, or Scion dealers.

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Intake Manifold Gasket Replacement

What is an intake manifold gasket?

For the engine to run, the intake manifold has to be properly sealed to the cylinder head. The intake manifold gasket does this. It may be made of rubber or paper.

How does the intake manifold gasket work?

An intake manifold gasket can be the source of a vacuum leak and/or engine coolant leak.

An intake gasket with a vacuum leak will often have a rough idle and engine misfires. This may turn on the Check Engine Light and set misfire and/or fuel mixture "out of range" trouble codes.

Some intake manifolds are made of plastic. They can become pitted and may need to be replaced along with the intake gaskets.

What are the symptoms related to a bad intake manifold gasket?

Problems with the intake manifold gasket can create the following symptoms:

Illuminated check engine light

Erratic engine performance

Oil and coolant leaks

Poor gas mileage

Stalling

» LEARN MORE: Intake manifold gasket symptoms

Can I drive with a intake manifold gasket problem?

A problem with the intake manifold gasket can make life hard on the engine. It's often best to have the car towed to a repair shop in this situation to avoid further damage.

How often do intake manifold gaskets need to be replaced?

There's no set schedule to replace the intake manifold gasket. It's designed to last the life of the vehicle, but often it will be replaced when doing related engine repairs in order to prevent problems with it down the road.

How are intake manifold gasket issues diagnosed?

If the above symptoms are present, the technician can test the intake manifold gasket by connecting a smoke machine to the manifold with the engine off. The pressure will push smoke out of any leaking parts, including the intake gasket.

How is a intake manifold gasket replaced?

Typically, the intake manifold will have to be removed to replace the gasket. This can be a large job that may involve draining the engine of coolant and oil and removing many engine components. Many vehicles, however, are designed with plastic intake manifolds that do not have oil passages or coolant passages, and are much faster and more cost effective to remove and reinstall.