2013 Mitsubishi Outlander Sport Has A Vacuum Leak

Diagnosing Vacuum Leaks in Your 2013 Mitsubishi Outlander Sport and Effective Repair Strategies

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Reviewed by
Aisha
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 2013 Mitsubishi Outlander 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 2013 Mitsubishi Outlander 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

Rough idling, lack of power, engine oil leaks, engine burning oil, and illumination of the check engine light are all possible if the PCV valve has clogged. If the check engine light comes on, the on-board diagnostics (OBD) trouble codes will most likely relate to manifold vacuum, air and fuel mixture, PCV system, mass airflow sensor readings, and exhaust and emissions readings. These are all affected in the event the PCV valve is clogged, is stuck fully open, or is stuck fully closed, however, if the valve is stuck fully open, the engine oil seals are not in danger of overpressure.

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 2013 Mitsubishi Outlander Sport?

To effectively diagnose a vacuum leak in your 2013 Mitsubishi Outlander Sport, start with a thorough visual inspection of the vacuum hoses. Look for any signs of wear, such as cracks or loose connections, which are often the culprits behind leaks. Next, listen for any hissing sounds while the engine is running, as these can indicate escaping air. If you have access to a vacuum gauge, connect it to the intake manifold to check for fluctuations in vacuum pressure, which can signal a leak. For a more hands-on approach, perform a spray test by applying carburetor cleaner or propane around the hoses and intake manifold; a change in engine RPM will confirm the presence of a leak. If you want a more definitive diagnosis, consider conducting a smoke test, which visually reveals leaks by showing where smoke escapes. Finally, using an OBD-II scanner to check for any diagnostic trouble codes can provide additional insights into potential issues related to vacuum leaks. By following this structured diagnostic approach, you can efficiently identify and address vacuum leaks in your vehicle.

What are the common problems associated with vacuum leaks in a 2013 Mitsubishi Outlander Sport?

When tackling vacuum leaks in a 2013 Mitsubishi Outlander Sport, it's crucial to recognize the common problems that can arise. One of the most noticeable symptoms is rough idling, which manifests as an unstable engine performance when the vehicle is stationary, creating a shaky sensation. Additionally, drivers may experience decreased fuel efficiency due to an imbalanced air-fuel mixture, leading the engine to consume more fuel than necessary. This inefficiency often triggers the check engine light, serving as a warning that something is amiss. Performance issues such as poor acceleration can also occur, making it difficult to gain speed or respond promptly when pressing the gas pedal. In more severe cases, vacuum leaks can lead to engine stalling, particularly during idling or when coming to a stop. Addressing these issues promptly is essential to maintain the vehicle's performance and prevent further damage, making it vital for DIY enthusiasts to be aware of these symptoms and take action as needed.

How urgent is it to address a vacuum leak in a 2013 Mitsubishi Outlander Sport?

Addressing a vacuum leak in your 2013 Mitsubishi Outlander Sport is not just a matter of convenience; it is a critical maintenance task that demands immediate attention. A vacuum leak can severely compromise engine performance, leading to symptoms such as rough idling, stalling, and a noticeable drop in fuel efficiency. These issues not only make your driving experience less enjoyable but can also escalate into more serious problems if left unresolved. For instance, prolonged neglect of a vacuum leak can result in damage to essential components like the oxygen sensors and catalytic converter, which are costly to repair or replace. Additionally, a vacuum leak often triggers the check engine light, signaling that your vehicle requires urgent attention. By addressing this issue promptly, you can avoid further damage and ensure your vehicle operates smoothly, ultimately saving you time and money in the long run. Therefore, if you suspect a vacuum leak, it is imperative to take action swiftly to maintain the health and safety of your vehicle.

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2013 Mitsubishi Outlander Sport Vacuum Leak Causes & Repairs