Parts for your 2017 Subaru Exiga-Knock sensor

Understanding the Knock Sensor on the 2017 Subaru Exiga

The 2017 Subaru Exiga, a popular family wagon known for its roomy interior and reliable performance, is equipped with a range of advanced engine management components. One of the key parts that helps keep the engine running smoothly is the knock sensor. For those not familiar with automotive tech, the knock sensor might sound like some sort of fancy gadget, but it plays a crucial role in protecting the engine and ensuring optimal performance.

A knock sensor is a small yet essential component that monitors engine vibrations caused by knocking or pinging. Knock happens when the air-fuel mixture in the engine's cylinders detonates unevenly or prematurely. This can cause a lot of stress and potential damage to the engine components over time. The knock sensor detects these high-frequency vibrations and sends a signal to the engine control unit (ECU), which then adjusts the ignition timing to prevent knocking from occurring.

So, does the 2017 Subaru Exiga have a knock sensor? Yes, it does. Subaru, especially in models equipped with boxer engines like the Exiga, incorporates knock sensors as part of their engine management system. These sensors are critical for detecting engine knock and ensuring that the timing is adjusted on the fly to protect the engine from harm.

Installing a knock sensor on the Exiga helps optimise fuel efficiency and engine performance while avoiding the damaging effects of improper combustion. Knocking can lead to poor fuel economy, rough engine running and even severe engine damage if left unaddressed. The knock sensor helps avoid these issues by allowing the car to run at the ideal timing window without risking damage.

When it comes to servicing or replacing the knock sensor on a 2017 Subaru Exiga, there are a few important things to keep in mind. While this sensor is designed to be durable and last a long time, it is not immune to failure. Faulty knock sensors may cause the check engine light to come on, lead to reduced engine performance, or cause the ECU to enter a fail-safe mode, limiting the vehicle's power.

Replacing the knock sensor is generally straightforward but does require some mechanical know-how. It is usually located screwed into the engine block or cylinder head, close enough to the cylinders to pick up vibrations clearly. On Subaru boxer engines, there are often two knock sensors, one for each cylinder bank, so both might need inspection during servicing.

Here are a few handy tips for maintaining or replacing the knock sensor on the 2017 Subaru Exiga:

• Check for symptoms: Common signs of a bad knock sensor include the engine running roughly, hesitation on acceleration, strange engine noises or the check engine light showing up on the dash.
• Use quality parts: Always replace a faulty knock sensor with a genuine or OEM-equivalent part to ensure good fitment and reliable performance.
• Handle with care: Knock sensors are sensitive electronic devices. During replacement, be gentle and avoid applying excessive torque to avoid damage.
• Professional diagnostic: If you suspect a knock sensor problem, it's wise to have a professional scan the vehicle's ECU codes. This helps pinpoint the issue accurately without unnecessary component replacements.
• Routine checks: Although knock sensor failures are not extremely common, having it inspected during major services or if the engine behaviour changes can prevent further damage.

Overall, the knock sensor is a quiet hero under the bonnet of the 2017 Subaru Exiga. It keeps the engine safe from harmful knocking, maintains performance and helps the vehicle run efficiently. Treating the knock sensor right with timely servicing and proper handling ensures that this component continues to function correctly for many kilometres to come.