Exhaust Manifold Gasket Failure in Your Jaguarby europewpadmin June 21, 2019
One of the most frustrating problems with any vehicle is when it starts to make a weird noise or begins to lose power. A common cause of these issues in older Jaguar models is a faulty exhaust manifold gasket. In this article, we will help you recognize the signs of a problem with your exhaust manifold gasket and what replacing it will entail.
What is an exhaust manifold?
A vehicle’s exhaust manifold connects the vehicle’s exhaust system to the engine cylinder head and is responsible for routing the engine exhaust to the exhaust pipe. In conjunction with the exhaust manifold gasket the exhaust manifold keeps toxic exhaust fumes from entering the confined space of the vehicles interior.
What is an exhaust manifold gasket?
The exhaust manifold gasket is located between the exhaust manifold and the engine cylinder head. The gasket is designed to provide a firm seal. Alternatively, over time a gasket may leak and need replacing. The exhaust manifold gasket helps to decrease the chance of severe damage to the exhaust manifold. Knowing what signs to look for when an exhaust manifold gasket needs replaced will help to protect the exhaust manifold.
Signs your Exhaust Manifold Gasket is Bad
Excessively Noisy Engine
One of the first signs of a leaking exhaust manifold gasket is the engine will begin to make a hissing or tapping sound. The noise may be particularly noticeable when starting the engine while cold, or during acceleration.
In most car models, the exhaust manifold is also connected to the coolant system. Therefore, if you notice coolant leaking where you park your vehicle or a drastic drop in coolant levels, one of the possible causes could be a leak in the exhaust manifold gasket.
Directly related to a coolant leak, as the coolant level drops the possibility of the engine overheating increases. Additionally, even when coolant levels are not impacted, a leak in the exhaust manifold gasket means that temperatures approaching 900 degrees is release into the engine on a regular basis. This can also cause the engine to overheat.
Loss of Acceleration, Power, and Fuel Efficiency
As an exhaust manifold gasket fails the acceleration potential, power, and fuel efficiency will gradually decrease. At first it may not be noticeable, but will worsen overtime if the gasket is not repaired.
Burning Smell Coming from the Engine
A burning smell coming from the engine compartment is never something that should go ignored. In the case of a leaking exhaust manifold gasket, the leaking fumes can reach extremely high temperatures that cause many components in the engine to heat up. Sometimes the burning smell may be accompanied by a little smoke, but smoke is not always evident. Any burning smell should be immediately addressed in order to assure the vehicle is operating safely.
A drastic drop in the pressure contained within the exhaust manifold can cause an engine to run rough. As a result of all of the above issues, the engine may eventually stall if a leaking exhaust manifold gasket has been overlooked. While this is unlikely to be the first sign, many individuals may not notice some of the other signs. An engine stall may be the most obvious.
What to Expect When Replacing an Exhaust Manifold Gasket
When you identify that your vehicle needs the exhaust manifold gasket replaced, it may help to understand what to expect. The first thing to know is that the cost of a gasket is one of the least expensive parts you can purchase. However, the labor involved in replacing an exhaust manifold gasket may be extensive. Be prepared for the repair to take a number of hours. This is not an easy fix, and it is labor-intensive, which is why it should be done by a professional mechanic.
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