Lexus intake manifold gasket replacement, made easy
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Our expert insights into intake manifold gasket replacement
What does an intake manifold gasket do?
The intake manifold gaskets are responsible for sealing the intake manifold against the cylinder head or heads depending on the engine. This gasket ensures no air leaks out as it travels from the air inlets into the intake manifold and eventually reaches the engine where it helps to burn the fuel inside the engine cylinder.
What are the symptoms of a bad intake manifold gasket?
Below are the top three symptoms that could indicate you need to replace your intake manifold gasket:
When the engine is running at a higher temperature or overheating more than usual.
When there is fluid under the car, coming from the engine.
When the engine does not run as smoothly as usual.
What happens when we do an intake manifold gasket replacement on your car?
Our certified mechanics will:
Inspect the intake manifold and gasket for leaks.
Read the car's ECU to find any fault codes.
Clean the air intake ports of the engine of dirt buildup.
If necessary, they will replace the intake manifold gasket.
Advise if other related parts need to be replaced.
Finally they will test drive the car.
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What does an intake manifold gasket do?
Gaskets are the seals placed between engine components to prevent any leaks. The intake manifold gasket is located between the engine and the air intake manifold and seals the two components.
It is usually made of a hard metal or composite material and ensures the air flows from the air inlets into the intake manifold and eventually reaches the engine where it helps to burn the fuel inside the engine cylinder. The intake manifold also serves as a device for cooling the engine coolant which passes through it.
Lexus
Lexus is the luxury division of the Japanese automotive manufacturer Toyota.
The Lexus brand was launched in 1989, is marketed in more than 70 countries worldwide, and has become Japan’s largest-selling make of premium cars.
How popular is Lexus in the United Kingdom?
For such a high-flying global leader, Lexus has a seemingly modest 156k cars on the road in the UK today.
Luxury executive vehicles for the discerning driver
In the UK, the Lexus brand focuses heavily on the NX and RX SUV models, it’s the fastest growing market for family cars after all; but each of the hatchbacks, saloons and coupés in its range come with the same high-level of luxury and sophistication for their £25–£76k price tags.
Lexus design and technology
Lexus was born to present itself as a luxury brand, something Toyota wasn’t in a position to market to their typical customer given their existing brand perception. To achieve a true luxury standard, they have targeted both vehicle development as well as their lavish presentation.
‘Lexus Musts’
Each vehicle has to achieve 500 specific must have standards known as ‘Lexus Musts’, all of which are to attain the high-end presentation and performance of a ‘true’ luxury marque.
Although they might not all be ‘Lexus Musts’ you can expect to find criteria such as leather seat stitching, smart key entry, remote touch control systems, surround sound and reduced cabin noise that utilises acoustic glass, in your Lexus vehicle. And the driving technology is just as impressive: Lexus introduced continuously variable transmissions, regenerative brakes, hybrid and electric fuel options, as well as vehicle stability and integrated dynamic handling management systems.
How often should an intake manifold gasket need replacing?
The intake manifold gasket on a car should typically last around 50,000 to 75,000 miles. However, this varies between cars and between drivers. In some instances, the gasket will fail prematurely due to the heat and pressures it’s exposed to on a daily basis. Some may last a lot longer in a less used or newer car.
And remember, failing to have your car maintained and repaired if you think there may be a problem with your intake manifold gasket could result in more costly and serious damage to your engine. A bad gasket will also impact your car’s power and fuel economy, making it more expensive to run.
The law, vehicle regulations and your MOT
There are strict regulations regarding exhaust systems and car emissions in the UK. A car's exhaust system, including the manifold and gaskets, cannot have any serious leaks, corrosion or cracks. An annual MOT tests both the exhaust system for leaks and deterioration and the emissions coming from the exhaust system.
What causes an intake manifold gasket to break?
During the combustion process the engine cools and heats continuously. The intake manifold gasket is constantly exposed to these extreme temperature fluctuations inside the engine, making it especially prone to wear and cracking.
When should an intake manifold gasket be replaced?
It is important to make sure that the intake manifold gasket is always in good condition as a damaged gasket can lead to engine coolant leaks and an overheating engine. We therefore advise that you replace a bad gasket as soon as you notice any of the symptoms below. The sooner you deal with the issue, the less likely it is that you’ll have to fork out for larger, costly repairs in the future.
What are the signs of a bad intake manifold gasket?
Usually, there a few signs you can look for:
If the ‘check engine’ warning light illuminates.
Engine misfire.
Loss of engine power.
Poor fuel efficiency.
When the engine is running at a higher temperature or overheating more than usual.
When there is fluid under the car, coming from the engine.
When coolant is visible around the intake manifold.
When the engine does not run as smoothly as usual.
What happens during an intake manifold gasket replacement?
During the repair our certified mechanics will:
Inspect the intake manifold and gasket for leaks.
Read the car's ECU to find any fault codes.
Clean the air intake ports of the engine of dirt buildup.
If necessary, they will replace the intake manifold gasket.
Advise if other related parts need to be replaced.
Finally they will test drive the car.
What is the average life of an intake manifold gasket?
The intake manifold gasket on a car should typically last around 50,000 to 75,000 miles. However, this varies between cars and between drivers. In some instances, the gasket will fail prematurely due to the heat and pressures it’s exposed to on a daily basis. Some may last a lot longer in a less used or newer car.
Can you drive with a broken intake manifold gasket?
We wouldn’t recommend driving if you suspect you have a bad or leaky intake manifold gasket. A bad leak will wreak havoc on your engine as it will disrupt the air fuel mixture in your engine. This could cause your car to overheat, stall frequently, misfire, run rough, or worst case your engine could seize, which will result in a costly, but avoidable, repair.
What happens if you don't change a bad intake manifold gasket?
Failing to have your car maintained and repaired if you think there may be a problem with your intake manifold gasket could result in more costly and serious damage to your engine. A bad gasket will also impact your car’s power and fuel economy, making it more expensive to run.
Do intake manifold gaskets deteriorate with age?
The intake manifold gasket on a car should typically last around 50,000 to 75,000 miles. However they can experience premature wear and tear as they are constantly exposed to extreme temperature fluctuations during your car’s combustion cycle.
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