Prenco 4D-1102 Engine Crankshaft Position Sensor - Lower

Reliable Engine Crankshaft Position Sensor for Cadillac, Oldsmobile, Pontiac

The Prenco 4D-1102 Engine Crankshaft Position Sensor is designed to provide accurate and consistent engine timing data for select Cadillac, Oldsmobile, and Pontiac models. This sensor ensures proper engine performance by monitoring crankshaft position with precision.

• Terminal Type: Blade for secure electrical connection
• Single female oblong connector with three male terminals
• Sensor body diameter measures 0.64 inches for precise fitment
• Compatible with Cadillac Aurora, Oldsmobile Aurora, Pontiac Bonneville, Cadillac DeVille, Eldorado, and Seville
• Mounting bracket not included, designed for direct replacement

Technical Details and Sensor Attributes

The Prenco 4D-1102 crankshaft position sensor features a blade terminal type that ensures a reliable electrical connection. It includes one female oblong connector housing three male terminals, which facilitates proper communication with the vehicle’s engine control unit. The sensor body diameter of 0.64 inches allows for an exact fit in the engine assembly without modification. While the sensor does not come with a mounting bracket, it is engineered to replace the original sensor directly in compatible Cadillac, Oldsmobile, and Pontiac models such as the Aurora, Bonneville, DeVille, Eldorado, and Seville.

Common Applications and Problem Resolution

• Restores accurate crankshaft position readings to improve engine timing
• Resolves engine misfires caused by faulty sensor signals
• Eliminates stalling or rough idling related to sensor failure
• Prevents check engine light triggers linked to crankshaft sensor issues
• Supports smooth engine start-up and consistent performance

Installation Notes and Tips

When installing the Prenco 4D-1102 sensor, ensure the vehicle is turned off and the battery is disconnected to avoid electrical hazards. The sensor’s blade terminals and oblong female connector should align precisely with the vehicle’s wiring harness. Since the mounting bracket is not included, reuse the original bracket or mounting hardware. Verify the sensor body diameter matches the original part to ensure proper seating. After installation, clear any diagnostic trouble codes and test engine operation to confirm correct sensor function.

Quality Assurance and Warranty Information

Prenco manufactures the 4D-1102 crankshaft position sensor to meet OEM specifications for Cadillac, Oldsmobile, and Pontiac vehicles. Each sensor undergoes quality control testing to ensure durability and accurate signal transmission. While specific warranty details may vary, Prenco typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the supplier for exact warranty terms.