Bentley lovers have no other better feeling than the nice and powerful feel of these classy automobiles. However, as with any car, Bentleys are not without their issues, and the most common one is faulty intake manifolds. The intake manifold is an important component of your engine since it provides the right air-fuel mixture for combustion.
When this system is not functioning properly, it can cause the engine to operate poorly, burn more fuel, or cause serious engine damage if left unresolved. Fortunately, when it comes to diagnosing intake manifold failures, it’s not quite as complicated as it might seem. Below are the most frequent Bentley’s intake manifold issues and how you can diagnose them.
Intake Manifold Failure Causes
- Wear and Tear: As time passes, parts of the system, such as seals and gaskets in the intake manifold, can show signs of wear. When they age, leaks form, low airflow occurs, and the engine’s efficiency decreases.
- Carbon Build-Up: Carbon deposits build up in high-performance vehicles such as Bentley’s, particularly in the intake manifold. This build-up hinders the flow of air, which is not good for the engine and fuel burning. Carbon issues are mostly associated with vehicles that incorporate direct fuel injection.
- Cracks or Physical Damage: The intake manifold tends to crack due to many thermal cycles of high and low temperatures. This is most likely to occur in older models or models used in areas with fluctuating temperatures. Defective manifolds cause a crack that leads to air leaks, affecting the air-fuel mixture’s balance.
How to Identify Problems with an Intake Manifold
- Inspect for Visible Damage: First, open the hood and examine the intake manifold for obvious damage. Look for signs such as cracks, leakage, or loose fittings. Any leakage or accumulation of oil or coolant around the manifold is an obvious sign that something is wrong.
- Listen for Unusual Noises: Try starting the engine and listening for any type of hissing or whistling noise. These noises should indicate a vacuum leak, which is one of the main signs of a failing intake manifold.
- Use a Diagnostic Scanner: If your Bentley’s check engine light is on, turn on an OBD-II diagnostic scanner to get the code. One of the typical DTCs associated with the intake manifold is P2015: intake manifold position sensor circuit range/performance.
- Check for Vacuum Leaks: Vacuum leaks are usually the common issue that leads to the intake manifold breakdown. First, turn on the engine and then spray soapy water or brake cleaner around the manifold. If the engine is idling, there is most probable a leak somewhere.
- Test for Carbon Build-Up: Carbon deposits can build up on the air intake path and seriously hamper airflow. While it is usually not apparent without pulling the manifold, it is present in cars with high mileage or direct fuel injection. However, if airflow problems continue, carbon cleaning will likely be required.
- Consult a Professional Mechanic: If you have tried any of the above mentioned steps and you can’t find out what is wrong or if you do not have the proper equipment for an assessment, seek help from any reputable luxury car mechanic you know. They know how to deal with intake manifold problems, and they are well-equipped to get to the root of the problem.
Get Professional Assistance For Bentley Repairs
Intake manifold problems are quite complex, and anyone who diagnoses or tries to repair them should be professional, especially if dealing with Bentley cars. Welcome to Mark Douglas Motorworks; we are located in Mission Viejo, CA, and deal with high-performance and luxury cars for drivers in the Orange County area. We have experienced technical personnel who have the equipment and expertise to tackle intake manifolds with efficiency.
If you reside in any of the neighboring areas, such as Huntington Beach, Lake Forest, Laguna Hills Costa Mesa, Irvine, and Laguna Niguel, CA, you can bring your exotic car to us for any kind of repair or maintenance. Whether your Bentley needs an oil change or a new manifold, we are ready to make it run as you just bought it. Make an appointment today to ensure your Bentley will not let you down!