2016 Ford Taurus Has A Vacuum Leak

Diagnosing Vacuum Leaks in Your 2016 Ford Taurus: Symptoms, Causes, and Repair Solutions

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Reviewed by
Andrew Hajjar
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 2016 Ford Taurus 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 2016 Ford Taurus 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 and repair a vacuum leak in a 2016 Ford Taurus?

When tackling a vacuum leak in a 2016 Ford Taurus, it's essential to adopt a systematic diagnostic approach. Begin by visually inspecting the vacuum hoses and connections for any signs of damage, such as cracks or disconnections, as these are often the most straightforward issues to address. If the source of the leak isn't immediately apparent, utilizing a vacuum gauge or a smoke machine can provide a more precise identification of the leak's location. Once you've pinpointed the problem, proceed with repairs by replacing any damaged hoses and securely reconnecting any that may have come loose. For minor cracks, silicone tape or sealant can be effective temporary solutions. Additionally, check components like the PCV valve or brake booster, as these can also contribute to vacuum leaks if they are faulty. After completing the repairs, start the engine and listen for any hissing sounds that might indicate remaining leaks, and use the vacuum gauge to ensure that the pressure aligns with the manufacturer's specifications. This methodical approach not only helps in effectively diagnosing and repairing the vacuum leak but also ensures that you address the simplest issues first, potentially saving time and effort.

What are the common causes of a vacuum leak in a 2016 Ford Taurus?

When diagnosing a vacuum leak in a 2016 Ford Taurus, it's crucial to understand the common problems that can arise within the vacuum system. One of the primary culprits is worn out vacuum hoses, which can deteriorate over time due to exposure to heat and engine vibrations, leading to cracks or loose connections. Additionally, a faulty intake manifold gasket can compromise the seal between the manifold and the engine, allowing air to escape and disrupting the air-fuel mixture. Another potential issue is a malfunctioning vacuum pump, which is responsible for generating the necessary vacuum pressure; if it fails, it can create significant leaks. Furthermore, loose or damaged vacuum fittings, including connectors and valves, can also contribute to leaks, as they may not maintain a proper seal. Lastly, the vacuum reservoir itself can develop cracks or damage, resulting in a loss of vacuum pressure. By being aware of these common causes, DIYers can effectively troubleshoot and address vacuum leak issues, ensuring optimal engine performance in their Ford Taurus. Regular inspections and proactive maintenance are key to preventing these problems from escalating.

How urgent is it to address a vacuum leak in a 2016 Ford Taurus to prevent potential safety risks and engine damage?

Addressing a vacuum leak in your 2016 Ford Taurus is not just a matter of performance; it is a critical safety concern that requires immediate attention. A vacuum leak can lead to rough idling, stalling, and poor acceleration, which can compromise your ability to control the vehicle effectively. More alarmingly, it can result in a lean fuel mixture, causing the engine to overheat and potentially leading to severe engine damage. Additionally, a vacuum leak can affect your power brakes, increasing the risk of brake failure and endangering your safety on the road. Given these serious implications, it is essential to diagnose and repair any vacuum leaks as soon as symptoms arise. Ignoring these issues can lead to costly repairs and jeopardize your vehicle's reliability and your safety. Therefore, if you suspect a vacuum leak, it is advisable to consult a professional mechanic promptly to ensure your Ford Taurus remains safe and performs optimally.

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