Prenco 4D-1271 Engine Crankshaft Position Sensor

Overview of Prenco Engine Crankshaft Position Sensor 4D-1271

The Prenco 4D-1271 Engine Crankshaft Position Sensor is designed for precise engine timing and performance monitoring. Compatible with select Buick, Chevrolet, Pontiac, and Saturn models, this sensor ensures reliable crankshaft position detection for optimal engine operation.

• Terminal Type: Blade
• Connector Quantity: 1
• Connector Shape: Oblong
• Terminal Quantity: 3
• Connector Gender: Female
• Terminal Gender: Male
• Sensor Body Diameter: 0.74 inches
• Mounting Bracket: Not included

Detailed Product Description

The Prenco 4D-1271 crankshaft position sensor features a blade terminal type with three male terminals housed within a single oblong female connector. Its compact sensor body diameter of 0.74 inches allows for easy integration into the engine assembly without requiring additional mounting hardware, as no mounting bracket is included. This sensor is engineered to provide accurate rotational position data of the crankshaft, which is critical for engine timing and fuel injection control.

Compatible with a range of vehicles including Buick Lucerne, Chevrolet Malibu, Pontiac G6, and Saturn Vue, the 4D-1271 sensor supports reliable engine management across multiple GM platforms. The single oblong female connector simplifies installation and ensures a secure electrical connection.

Common Applications and Issues Addressed

• Engine misfires or rough idling due to inaccurate crankshaft position data
• Difficulty starting the engine or intermittent stalling
• Check engine light triggered by crankshaft sensor faults
• Poor fuel economy related to timing errors
• Engine performance issues in Buick, Chevrolet, Pontiac, and Saturn models

Installation Notes and Tips

• Ensure the vehicle is turned off and the battery is disconnected before installation
• Locate the existing crankshaft position sensor on compatible Buick, Chevrolet, Pontiac, or Saturn models
• Disconnect the oblong female connector carefully to avoid terminal damage
• Install the Prenco 4D-1271 sensor in place of the original, noting the 0.74-inch sensor body diameter for fitment
• Secure the sensor as per vehicle manufacturer guidelines; note that no mounting bracket is included with this part
• Reconnect the electrical connector and battery, then test engine operation

Quality Assurance and Warranty

Prenco manufactures the 4D-1271 crankshaft position sensor to meet industry standards for durability and performance. While no mounting bracket is included, the sensor is built to OEM specifications for reliable fit and function. Warranty coverage details should be confirmed at the point of purchase to ensure protection against manufacturing defects.