12574628 GM Ignition Knock Detonation Sensor

Review GM Genuine Ignition Knock Detonation Sensor

The GM 12574628 Ignition Knock Detonation Sensor is an essential component of modern automotive ignition systems. This sensor plays a crucial role in detecting and preventing harmful engine conditions such as ignition knock or detonation.

The sensor is designed as a thin, flat, and cylindrical device with a diameter of approximately 1.3 inches (33.02mm) and a length of about 1.8 inches (45.72mm). It is primarily composed of advanced materials like ceramics and semiconductors that ensure high levels of sensitivity, durability, and reliability.

The GM 12574628 sensor employs a piezoelectric design, which converts mechanical energy into electrical energy. The device is strategically located near the engine cylinders to capture the minute pressure waves generated during the combustion process. When ignition knock or detonation occurs, the pressure waves produced are significantly different from those of a normal combustion event. These distinct pressure waves are detected by the sensor, which then generates an electrical signal.

The electrical signal produced by the GM 12574628 sensor is sent to the powertrain control module (PCM). The PCM analyzes the signal and determines whether ignition knock or detonation is present. Based on this analysis, the PCM can take corrective actions such as retarding the ignition timing or adjusting the fuel mixture to optimize engine performance and prevent potential damage.

The sensor's high level of sensitivity ensures that it can detect even the slightest signs of ignition knock or detonation, allowing for early intervention and minimizing the risk of engine damage. Additionally, the sensor's robust design ensures that it can withstand the harsh conditions of the engine bay, providing reliable operation over an extended period.

In summary, the GM 12574628 Ignition Knock Detonation Sensor is a critical component of modern automotive ignition systems. Its piezoelectric design allows it to detect and respond to the unique pressure waves generated during ignition knock or detonation, ensuring optimal engine performance and preventing potential damage. Its high level of sensitivity and robust design make it a reliable and durable solution for maintaining the health and longevity of your engine.

1. Improved Engine Performance: This sensor is designed to detect early signs of engine knocking and misfiring. By identifying these issues early, the engine control module (ECM) can adjust the ignition timing to prevent further damage and optimize engine performance.

2. Enhanced Fuel Efficiency: Preventing engine knocking can lead to improved fuel efficiency. When the engine is running smoothly, it doesn't need to work as hard to maintain power, which can result in better gas mileage.

3. Long-Term Engine Protection: Ignition knock can lead to significant engine damage over time, including piston and cylinder wall damage. By addressing this issue promptly, you can protect your engine from costly repairs down the line.

1. Cost: The GM 12574628 Ignition Knock Detonation Sensor is a relatively expensive replacement part, especially compared to other sensors or filters. However, the potential benefits to engine performance and longevity may justify the investment.

2. Installation Complexity: Installing this sensor requires some mechanical knowledge and the right tools. If you're not comfortable working on your vehicle yourself, you may need to pay for professional installation, which can add to the overall cost.

3. Potential False Positives: While the sensor is designed to detect engine knocking, it's possible for it to produce false positives. This can lead to unnecessary repairs or adjustments, which can be frustrating and time-consuming.

The GM 12574628 Ignition Knock Detonation Sensor is an investment in your vehicle's long-term performance and protection. While it comes with some costs and potential drawbacks, the benefits of improved engine performance, enhanced fuel efficiency, and engine protection make it a worthwhile consideration for vehicle owners. If you're comfortable with the installation process or have access to a professional mechanic, the benefits may outweigh the costs.

If you're experiencing engine knocking or misfiring, or if you want to proactively address potential engine issues, consider investing in a GM 12574628 Ignition Knock Detonation Sensor. However, make sure to weigh the potential benefits against the costs and installation complexity before making a decision. If you're unsure, consult with a professional mechanic for advice.

Details:

Shipping carrier substitutions may be made at our determination in an attempt to reduce shipping cost the customer. Sends signals to the engine control module ecm adjust timing helps prevent damage caused by pre-ignition. Parts must be resalable and in the original packaging. 3.6l, with leads.

Electrical parts are not returnable.

specifications ignitioncomp:

• brand: Gm
• mpn: 12574628
• part type: Ignition Sensor
• genuine oem: Yes
• manufacturer warranty: 1 Year
• universal fitment: Direct Replacement
• make: Buick
• year: 2004 2005 2006 2007 2008
• parts included: Only Part Reference 6 On The Diagram Is Included

seller ignitioncomp:

• city: rexburg, idaho
• rating: 100.0%
• # reviews: 618

returns ignitioncomp:

• paid by: buyer
• policy: returns accepted
• time: 30 days

general ignitioncomp:

• category: Auto Parts > Car Truck Accessories > Ignition Systems Components

shipping ignitioncomp:

• type: fixed
• service: standard, expedited
• class: standard, expedited
• transit: 3-8 days

offer ignitioncomp:

• started: july 16, 2025
• availability: in stock
• sold #: 17
• options: ship-to-home
• prices: $59.10–$131.13
• item condition: New
• in stock #: 5

payments ignitioncomp:

• other
• wallet: google-pay
• credit card: diners-club