Skip the auto shop - Our mechanics make house calls

How Long Does an Exhaust Manifold Last?

Exhaust Manifold

You've probably heard of the exhaust manifold before, but that doesn't necessarily mean you're clear on what it does. In fact this system is very important in the operation of your vehicle. It connects the cylinder head to your engine's exhaust port. This makes it possible for the hot exhaust to travel through a pipe instead of seeping out into the air and the vehicle itself. The manifold can be made of cast iron or a set of pipes, it all depends on the vehicle you are driving.

Because this manifold is always cooling down and heating up as the gasses pass through it, it means the pipe is contracting and expanding regularly. This can be quite hard on it, and even result in cracks and breaks. Once this happens, the fumes will begin to leak. These leaks are very dangerous to your health since you'll be breathing in the gasses instead. As well it starts to decrease the performance of your engine.

With the exhaust manifold it isn't a question of whether or not it will fail over time rather it is a question of when it will fail. It's a good idea to have your exhaust manifold inspected by a certified mechanic from time to time, just so you can get an early jump on any cracks. In the meantime, here are some signs you can watch for that may indicate your exhaust manifold is in need of replacement.

  • Because your engine won't be running efficiently, your Check Engine Light will likely come on. You'll need a mechanic to read and then clear the computer codes.

  • Your engine may not work as well as it used to, as a failed exhaust manifold impacts engine performance in a big way.

  • There are sounds and smells that can also act as tip-offs. The engine can begin to make loud noises that you'll be able to hear, even while driving. If the exhaust manifold is leaking, then you'll likely be able to smell odor coming from the engine compartment. It will be the smell of the plastic parts that are located beside the exhaust manifold, which are now melting thanks to the heat that is leaking out.

The exhaust manifold connects the cylinder head to the engine’s exhaust port. Once this part fails, you will notice all kinds of things start to happen with your engine and overall vehicle performance. If you’re experiencing any of the above mentioned symptoms and suspect your exhaust manifold is in need of replacement, get a diagnostic or book an exhaust manifold replacement service with a professional mechanic.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

Symptoms of a Bad or Failing Flexible Clutch Hose
Common signs include difficulty shifting, low clutch fluid, and feeling no resistance at the clutch pedal.
How to Get a Louisiana Driver's Permit
s licensing program. The first step in this program is to obtain...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...


Related questions

Q: Air conditioning malfunction due to coolant leak - 1995 Chevrolet Beretta

Your car may have blown a headgasket during the overheating episode which is most likely the cause of this. If you would like, have a professional mechanic, such as one from YourMechanic, can check out your engine for this problem,...

Q: How much should it cost to replace the exhaust system? 2003 Hyundai Sante Fe

Hi - unfortunately, YourMechanic is unable to offer this service at this time. Thanks for thinking of us though!

Q: My truck threw a rod, should i consider a crate engine to replace it with, or just a regular engine.

The question you should ask yourself is how much of a budget you are having for your vehicle. The difference between a crate engine and a new engine is that the crate engine will come with all of the parts...