Preparing your vehicle settings
YMMSE Car Icon Select your vehicle
Year
    Make
      Model
        Submodel
          Engine
            settings
            settings
            2018 Acura ILX Base 4 Cyl 2.4L expand_more
            search Browse Part
            add_box Add New Vehicle
            Shop By Brand
            Select Brand

            Knock Sensor Part

            Knock Sensor Brand

            Knock Sensor Price

            Knock Sensor Location

            Knock Sensor Product Fit

            Knock Sensor Quantity Sold

            Knock Sensor Recommended Use

            COLLAPSE ALL

            Knock Sensor

            We have 416 Items for Knock Sensor In-stock.
            • Shop By Part
            • Shop By Vehicle
            • Shop By Brand

            Knock Sensor Products

            Bang. Clunk. Shake. Uh, oh'sounds like your knock sensor is shot. Without a properly working knock sensor your car's engine cannot process fuel without knocking, pinging, and rattling its way down the street. Turn off your car when the knock sensor is dead and you are likely to witness your car shaking, gasping, and rattling for several seconds after you turn off the ignition. You need a new knock sensor, my friend. Don't risk damage to your engine by letting the problem continue. Nip it in the bud with one of our knock sensors and save money too. We buy all of our knock sensors directly from the manufacturer, so you save money. We only carry OEM or better parts and we sell all that we stock at a discount. You save money and get the best knock sensors you can find. You want to be the talk of the town with your fine looking roadster, but you don't want the town talking about the noise coming from underneath your hood. Check our online catalog, find the knock sensor that is right for the make and model of your car, and order it today. Our service and prices are unbeatable.

            Buying Guides

            Getting the Proper Knock Sensor for Your Ride

            Your vehicle also upholds the motto that prevention is better than cure. This is proven by the part that is called as the knock sensor. It is connected to your vehicle's computer system in order to determine and serve as a warning signal against engine knocks. This occurs when the spark plug fails to trigger the fuel operations properly. As a result, your engine cannot run smoothly. With your knock sensor, the first sign of engine trouble can be avoided. However, it can wear out over time. Hence, you need to have a replacement. Here are important things that you must keep in mind if you are about to make a purchase for a new knock sensor.

            Different types of knock sensor

            Whether you love driving off-road or on normal paths only, there are two types of knock sensor that you can pick from:

            1. Broadband single wire sensor: This is the older type of knock sensor in the automotive market. It works by observing and identifying the standard range of engine noise from its operations. Once the broadband single wire sensor detects a noise that is higher than the usual, it will send a signal to your vehicle's electronic control unit (ECU). This type of knock sensor can be able to detect a huge variation in the rates of the engine noise. It also has electromagnetic resistance so that it can function smoothly.
            2. Flat response two-wire sensor: This second type of knock sensor is the newer design introduced. Its difference from the broadband single wire is that it already has a programmed range of engine noise frequency. If there is an engine knock, the flat response two-wire sensor will respond by giving out a higher voltage than the predetermined frequency range. As a newer type of sensor, it is more accurate than the broadband single wire.

            Other things to consider

            Both types of sensors has the same piezoelectric element that allows them to send signals to a vehicle's electronic control unit (ECU). However, you must pick which type is compatible with the ECU of your vehicle. Some knock sensors that are available in the market come in a complete assembly, while others come in a single item only. It still depends on your driving needs.

            Repair Guides

            How to Replace Your Knock Sensor

            Imagine what would happen if there is no signal that can tell how knocked up the engine is. You would probably end up driving recklessly. That is why your knock sensor is up to the rescue. It is responsible for detecting the signs of engine detonation. The knock or detonation is harmful in a way that the spark plug will not be able to ignite fuel in the right manner. This further causes the engine to sputter, and can also lead to more serious engine problems. So thanks to your knock sensor, the possible damage can be prevented. But if your knock sensor fails to maintain its optimum working condition over time, it is best to have it replaced with a new one. These steps can help you to install your new knock sensor efficiently:

            Difficulty level: Moderate

            Things you'll need:

            • jacks and jack stands
            • wrench
            • dielectric grease
            • new knock sensor

            Step 1: Before you remove your knock sensor, you need to raise your vehicle with the help of jack stands to have proper access on the front area of the engine.

            Step 2: As a safety measure, it is recommended to disconnect the negative battery cable from the terminal.

            Step 3: Once you have located your knock sensor, you must unplug its wiring harness connector first before totally removing it. This will ensure that its electrical connections will not be affected throughout the process.

            Step 4: Look for the hexagon-shaped part of your knock sensor. Once you have located it, slide a wrench onto it in order to unbolt your knock sensor in a counterclockwise motion.

            Step 5: Before attaching your new knock sensor on the engine block, you must apply a dielectric grease on its threads for lubrication.

            Step 6: Install your new knock sensor, and tighten it securely with the help of a wrench.

            Step 7: Reattach the wiring harness connector and the negative battery cable to the terminal.

            Step 8: Remove the jack stands that support your vehicle while lowering it carefully in order to test the efficiency of your new knock sensor.

            Need Help? Get everything right and save time

            Contact our auto parts experts through Live Chat or Email us

            Our Advantage

            Free Shippingon orders $50 and above

            Top Selling Knock Sensor