Prenco 4D-1030 Engine Crankshaft Position Sensor

Engine Crankshaft Position Sensor for GM Applications

Prenco 4D-1030 is an engine crankshaft position sensor built for direct replacement use on a wide range of GM and related vehicles. It uses a 1-connector, 2-terminal blade-style electrical interface with an oblong female connector and male terminals for straightforward harness connection.

Compatible With 1987-2007 Buick, Chevrolet, GMC, Oldsmobile, Pontiac, Saturn, Saab, and Isuzu applications, including Chevrolet Trailblazer, GMC Envoy, Saturn Vue, and Pontiac Grand Am platforms. The Prenco 4D-1030 is sized with a 0.75-inch sensor body diameter and does not include a mounting bracket.

Key Features

• Engine crankshaft position sensor for ignition and engine management systems
• Prenco part number 4D-1030 for easy catalog matching
• Blade terminal design with 1 female connector and 2 male terminals
• Oblong connector shape for application-specific fitment
• 0.75-inch sensor body diameter
• No mounting bracket included
• Cross-references Standard Ignition PC134 and Beck/Arnley 180-0528 for the same application

Detailed Description

The crankshaft position sensor monitors crankshaft rotation so the engine control system can manage ignition timing and fuel delivery. Prenco 4D-1030 is specified for a broad range of vehicles, including Chevrolet Cavalier, Chevrolet Malibu, Chevrolet Trailblazer, GMC Envoy, Saturn Ion, Saturn Vue, Pontiac Sunfire, Pontiac Grand Am, and Buick Skylark applications. It also covers select Oldsmobile Alero, Oldsmobile Bravada, Saab 9-7x, and Isuzu Ascender models.

This part number, 4D-1030, is a practical OE-style replacement choice when diagnosing crank signal faults on GM compact cars and midsize SUVs. Use the vehicle-specific fitment list to confirm the exact year and model before ordering.

Common Problems This Part Can Help Address

• Crankshaft position sensor fault codes
• Hard starting or extended crank time
• Intermittent stalling or sudden engine shutdown
• Rough idle or misfire symptoms tied to crank signal loss
• No-start conditions caused by missing engine speed input

Installation Notes and Tips

Verify connector shape, terminal count, and sensor body diameter before installation. Inspect the harness connector for corrosion, bent terminals, or damaged locking tabs, since wiring issues can mimic sensor failure. On listed applications, fitment varies by year and model; for example, Chevrolet Trailblazer, GMC Envoy, and Saturn Vue coverage spans multiple model years, while some Chevrolet Malibu and Pontiac Grand Am applications are year-specific.

Because mounting bracket inclusion is not provided with this part, compare the existing sensor mounting style on the vehicle before replacement. Confirm the exact application for Chevrolet Cobalt, Chevrolet HHR, Chevrolet Classic, and Saturn Ion models where year coverage differs by platform.

Quality Assurance

Prenco 4D-1030 is cataloged with defined connector, terminal, and body specifications to support accurate parts matching across the listed GM, Saturn, Saab, and Isuzu applications. Use the published interchange references and fitment data to verify selection against the vehicle’s original sensor configuration.