Global Parts 1811974 Ignition Knock (Detonation) Sensor

Reliable Ignition Knock Sensor for Buick Vehicles

The Global Parts 1811974 Ignition Knock (Detonation) Sensor is designed to provide accurate engine knock detection for Buick Allure, LaCrosse, and Rendezvous models. This sensor helps maintain optimal engine performance by monitoring detonation and sending precise signals to the engine control unit.

• Wiring harness length: 7.75 inches for flexible installation
• Blade terminal type with 2 terminals for secure electrical connection
• Includes wiring harness with one female rectangular connector
• Connector designed for easy plug-and-play compatibility
• Mounting hardware not included, allowing use of existing fasteners

Product Details and Specifications

The Global Parts 1811974 ignition knock sensor features a 7.75-inch wiring harness that provides sufficient length for installation in various engine compartments. It includes a female rectangular connector with a single connection point, ensuring compatibility with the factory wiring harness on Buick Allure, LaCrosse, and Rendezvous models. The sensor uses blade-type terminals with two contacts to maintain a reliable electrical connection. While mounting hardware is not included, the sensor is designed to fit directly into the existing mounting location on compatible Buick vehicles.

Compatible Buick Models and Applications

This ignition knock sensor is compatible with the following Buick models:

• Buick Allure
• Buick LaCrosse
• Buick Rendezvous

Use the Global Parts 1811974 sensor to replace faulty or worn knock sensors in these vehicles to ensure accurate engine knock detection and maintain engine efficiency.

Common Issues Addressed by This Sensor

• Engine knocking or pinging during acceleration
• Reduced fuel efficiency due to improper ignition timing
• Check engine light triggered by knock sensor fault codes
• Engine performance issues related to detonation misfires
• Unstable idle or hesitation under load

Installation Notes and Tips

Before installation, verify the part number 1811974 matches the original sensor on your Buick Allure, LaCrosse, or Rendezvous. The included wiring harness with a female rectangular connector allows for straightforward connection to the vehicle’s existing wiring. Since mounting hardware is not included, retain the original fasteners or source compatible hardware. Ensure the sensor is securely mounted to the engine block to accurately detect knock signals. It is recommended to disconnect the battery before installation to prevent electrical shorts.

Quality Assurance and Warranty

Global Parts manufactures this ignition knock sensor to meet OEM specifications for Buick vehicles. The part number 1811974 undergoes quality control testing to ensure reliable performance and durability. While mounting hardware is not included, the sensor is designed for direct replacement. Warranty coverage details should be confirmed with the distributor or retailer at the time of purchase.