Product Function Description

The crankshaft position sensor (part number 39180-2B000) is a critical component of your vehicle‘s engine management system. Its primary function is to monitor the rotational speed and position of the engine’s crankshaft and transmit this data to the engine control module (ECM). The ECM uses this information to calculate precise fuel injection timing and ignition timing, ensuring the engine runs smoothly and efficiently. This sensor is a direct replacement designed to match the original specifications, ensuring proper fit and reliable operation.

 DIY Diagnosis Guide

How to Tell If Your Crankshaft Position Sensor Needs Replacement:

Look for these common signs:

1. Engine stalls or won‘t start – Intermittent stalling, especially when hot, or no-start condition

2. Check engine light – Diagnostic trouble codes related to crankshaft position

3. Rough running or misfire – Inconsistent engine operation due to incorrect timing signals

4. Poor acceleration – ECU cannot optimize ignition timing without accurate sensor data

5. Tachometer malfunction – Erratic or non-working RPM gauge (on some models)

💡 Quick inspection: Check the sensor connector for corrosion or damage. Inspect the sensor tip for metallic debris. A scan tool can read crankshaft position sensor codes to confirm diagnosis. If the engine stalls when hot but restarts after cooling, the sensor is a common suspect.

Product Attributes

Why Choose This Crankshaft Position Sensor?

Restores Engine Reliability – A failing sensor causes stalling, starting issues, and misfires. This new sensor restores accurate crankshaft position data for dependable engine operation.

Eliminates Intermittent Failures – Worn sensors can fail intermittently, leaving you stranded unpredictably. This new sensor provides consistent, reliable signal output.

Direct Replacement – Precision-engineered to match the original sensor specifications. Direct replacement – no modifications required. Part number 39180-2B000 is confirmed for compatible Hyundai and Kia applications.

Correct Signal Type – Designed as an inductive sensor with 2 pins, matching the original specifications for vehicles without start/stop function.

Package Contents

1 x Crankshaft Position Sensor (Part Number 39180-2B000). Note: Mounting bolt, electrical connector, and wiring harness are NOT included unless stated. Please confirm compatibility with your vehicle’s model, engine, and year before purchasing.

DIY or Professional Installation?

This replacement is suitable for DIY if:

• You have basic mechanical skills and access to the sensor location (may require removing undertray or accessing from below).

• You have a socket set, ratchet, and possibly a torque wrench.

• You can safely lift and support the vehicle if the sensor is accessed from underneath.

We recommend professional installation if:

• You are unfamiliar with engine sensor replacement or electrical connectors.

• The sensor is difficult to access on your specific vehicle model.

• You are not confident in diagnosing electrical issues or clearing trouble codes.

Note: Improper installation can lead to continued engine issues. Ensure the sensor is fully seated and the connector is securely fastened. The sensor is typically secured with a single bolt and is a simple swap, often taking 15-30 minutes.

Step-by-Step Installation Guide

This installation guide is designed to help you replace your crankshaft position sensor with confidence. Before starting, ensure the vehicle is parked on level ground with the engine off. You will need the following tools: socket set, ratchet, and possibly a torque wrench.

Step 1: Disconnect the negative battery cable to prevent electrical issues during installation.

Step 2: Locate the crankshaft position sensor. It is typically mounted on the engine block or timing cover near the crankshaft or flywheel. On many vehicles, access may require removing an undertray or accessing from below.

Step 3: Disconnect the electrical connector from the sensor by pressing the release tab and pulling it away.

Step 4: Remove the mounting bolt securing the sensor. The sensor is typically held by a single bolt.

Step 5: Carefully pull the old sensor out of its mounting hole. Inspect the sensor tip for debris or damage.

Step 6: Install the new sensor into the mounting hole, ensuring it is fully seated. Reinstall the mounting bolt and torque to specification (typically light torque for M6 bolt).

Critical Step: Reconnect the electrical connector until it clicks into place. Reconnect the negative battery cable. Start the engine and verify proper operation. Check for any stored trouble codes and clear them if necessary.

Pro Tip: When replacing the sensor, clean the mounting area before installation. Avoid over-tightening the mounting bolt. If the vehicle had a P0335 code, clear it after installation and verify it does not return.

Common Misconceptions About Crankshaft Position Sensors

Myth 1: A crankshaft position sensor either works or it doesn‘t.
Fact: Sensors can fail intermittently, working fine when cold but failing when hot, or vice versa. The sensor may test within specification when cold but produce erratic signals when warm.

Myth 2: A Check Engine Light always comes on when the sensor fails.
Fact: Intermittent sensor failures may not trigger a Check Engine Light immediately. Many drivers experience stalling or starting issues without any warning light until the failure becomes more consistent.

Myth 3: Any crankshaft position sensor will work.
Fact: Crankshaft position sensors are engine-specific and must match the signal type (inductive vs. Hall effect) and connector configuration. This sensor is designed for specific Hyundai and Kia applications without start/stop function.

Common Customer Concerns & Our Solutions

We understand that purchasing a crankshaft position sensor can raise questions and concerns. Here is how we address the most common issues our customers face:

“What if I install it and the car still won’t start?” – Check that the connector is fully seated and the mounting bolt is properly tightened. An improperly seated sensor can still cause starting issues. Also verify that no other issues (fuel, spark) are present.

“Can I replace just the sensor without other repairs?” – Yes, the crankshaft position sensor is a standalone component. However, if the engine has other issues, they may need to be addressed separately.

“How to avoid comebacks after sensor replacement?” – Ensure the sensor is fully seated, the connector is properly engaged, and the mounting bolt is torqued correctly. Clear any stored codes and verify no new codes appear.

“Customer says the car stalls intermittently but no code is stored.” – Intermittent crankshaft sensor failures often do not set a code until the failure becomes consistent. Check for pending codes and inspect the sensor for contamination or damage.

Storage & Shelf Life

• Store in a cool, dry place away from direct sunlight.

• Keep the sensor in its original packaging until installation to prevent contamination or damage.

• Avoid contact with moisture, oil, grease, solvents, or other chemicals that may affect the sensor.

• Do not drop or subject the sensor to impact, as this may damage internal components.

After-Sales Service & Warranty

This product is covered by our quality assurance. If you have any questions or issues regarding fitment or quality, please contact us and we will respond within 24 hours.

Related Product Recommendations 

When replacing the crankshaft position sensor, it is often recommended to inspect and consider replacing the following related components at the same time.