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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.
Smart
Smart is a German automotive brand, established 25 years ago in 1994.
The company is a division of the automotive corporation Daimler AG and operated under the ownership of Mercedes-Benz.
How popular is Smart in the United Kingdom?
Smart isnt’ the most popular brand in the UK, most likely due to appealing primarily to parking-challenged city-dwellers; there are only 96k of their vehicles on the roads of the UK today.
Showing steady growth, however, since their introduction to the UK market in 2003, the trend would suggest that we’re likely to see more of these eccentric looking tiny cars as time goes by.
Smart: Quirky little microcars and subcompacts
Owned by Mercedes-Benz, Smart cars fit into the market you’d expect on first glance. They’re a fun and funky little city car; they’re solid, middle of the road machines, designed to be as versatile as they look.
A Smart car will never fool anyone that it’s a hi-end, luxury vehicle. There’s plenty of glossy plastic and groovy fabrics, yet in the cockpit, you’ll find up-to-the-minute touchscreen media options at the controls. They do come at an inflated price for the small city car market, but by nature of their unique design—there’s nothing quite like them.
Smart cars are cheap to run—but not so cheap to buy
Your Smart ForFour will be more expensive by comparison than its rivals: the Fiat 500, Skoda Citigo, Kia Picanto or Hyundai i10—yet it’s rather hard to pitch the Fortwo against anything because there isn’t anything on the market quite so small. Only the Renault Twizy comes to mind, and that’s barely a car at all.
Once you’ve got one though, your Smart car will cost next to nothing to run with their tiny wheels and low weight. The electric models perform even better with a fuel equivalent of 87mpg.
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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