2015 Land Rover Discovery Sport Has A Vacuum Leak

Diagnosing Vacuum Leaks in Your 2015 Land Rover Discovery Sport and Effective Repair Strategies

Find Repair Location
Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
40% chance it's the
Leaking Vacuum Hoses
0%
30% chance it's the
Leaking Gaskets and Seals
0%
20% chance it's the
Bad Actuators and Valves
0%
10% chance it's
Something else
The most common reasons a 2015 Land Rover Discovery Sport has a vacuum leak are leaking vacuum hoses, leaking gaskets and seals, or bad actuators and valves.
  • Leaking Vacuum Hoses: A cracked or disconnected vacuum hose can lead to a loss of engine vacuum, resulting in poor engine performance and increased fuel consumption.
  • Leaking Gaskets and Seals: Aged or damaged gaskets and seals can lead to fluid leaks, resulting in loss of engine oil or coolant and potential engine damage.
  • Bad Actuators and Valves: A malfunctioning actuator or valve can disrupt the proper operation of the vehicle's systems, leading to issues such as poor engine performance or erratic behavior of components like the HVAC system.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

How much does it cost to fix a 2015 Land Rover Discovery Sport has a vacuum leak?

Common Repairs

The total repair cost will vary based on the condition of your vehicle and the number of repairs needed to fix your symptom. Proper diagnosis will save you money by finding the exact repairs needed to fix your car right the first time.

Problems with the intake manifold gasket can create the following symptoms:

  • Illuminated check engine light
  • Erratic engine performance
  • Oil and coolant leaks
  • Poor gas mileage
  • Stalling

» LEARN MORE: Intake manifold gasket symptoms

A bad valve cover gasket will result in an oil leak. You may notice oil under the car or on other parts under the hood. You might also notice a burning smell while driving.

» LEARN MORE: Signs of a bad valve cover gasket

Any time there is an emissions fault the check engine light will be displayed. The purpose of the check engine light is to inform the driver that an emission related fault has been found, and that there are on-board diagnostic (OBD) trouble codes stored in the powertrain or engine control module. Additionally, since the emissions systems are so intertwined into engine control and transmission control systems, symptoms may include nearly any sort of drivability concerns. This may include harsh shifting, failure to shift, hesitation on acceleration, jerking, engine failure to start or run, loss of power, or any number of other drivability issues.

What are the steps to diagnose a vacuum leak in a 2015 Land Rover Discovery Sport?

To effectively diagnose a vacuum leak in your 2015 Land Rover Discovery Sport, begin with a thorough visual inspection of the engine components. Carefully examine all vacuum hoses, gaskets, and fittings for any signs of cracks, wear, or damage, as these can be common culprits for leaks. Pay attention to any oil or dirt accumulation around the vacuum lines, which may indicate a breach. If the visual inspection does not reveal any obvious issues, consider utilizing a smoke tester, a valuable tool that can help you pinpoint the exact location of a leak by introducing smoke into the vacuum system. Additionally, inspect the vacuum pump, typically located under the air cleaner, as it is a frequent source of leaks in this model. Ensure that the vacuum lines connecting the pump to the intake manifold are intact and free from damage. Remember that even a small vacuum leak can lead to a lean condition at idle, so approach the diagnosis methodically and avoid unnecessary part replacements. If you find the process overwhelming or are uncertain about your findings, consulting a qualified mechanic or Land Rover specialist is always a wise choice to ensure accurate diagnosis and repair.

What are the common problems associated with vacuum leaks in a 2015 Land Rover Discovery Sport?

When addressing vacuum leaks in a 2015 Land Rover Discovery Sport, it's crucial to understand the common problems that can arise. One of the primary culprits is the vacuum hoses, which can deteriorate over time, leading to leaks that affect engine performance and fuel efficiency. Additionally, leaking gaskets and seals can contribute significantly to vacuum issues, often resulting in symptoms like rough idling and stalling. Faulty actuators and valves within the vacuum system can also create leaks, potentially triggering warning lights on the dashboard and impacting overall vehicle performance. Beyond these common issues, other factors may also play a role, depending on the vehicle's maintenance history and individual circumstances. Addressing these vacuum leaks promptly is essential to prevent further damage and maintain the optimal performance of your Land Rover Discovery Sport.

How urgent is it to repair a vacuum leak in a 2015 Land Rover Discovery Sport?

Addressing a vacuum leak in your 2015 Land Rover Discovery Sport is crucial for maintaining optimal engine performance and preventing further complications. A vacuum leak can significantly disrupt the air-fuel mixture, leading to poor engine performance, reduced power, and decreased fuel efficiency. If left unattended, this issue can escalate, resulting in rough idling, engine stalling, and even more severe engine damage. The urgency of repairing a vacuum leak cannot be overstated, as it not only affects your vehicle's performance but also poses potential safety risks while driving. By promptly addressing this issue, you can ensure that your Land Rover operates smoothly and reliably, avoiding costly repairs down the line. Therefore, if you suspect a vacuum leak, it is advisable to take action immediately to safeguard your vehicle's performance and longevity.

You’ve got options with RepairPal

Whether you need a more accurate auto repair estimate or help finding a reputable shop in your area, we’ve got you covered.