P0336
UniversalCrankshaft Position Sensor A Circuit Range/Performance
High SeverityThe Engine Control Module (ECM) detects an issue with the signal from the crankshaft position sensor, indicating that its output is inconsistent or outside the expected range. This typically results in unstable engine operation or difficulty starting the vehicle.
⚠️ Before You Begin (Safety First)
Always ensure the vehicle is safely supported on jack stands and the engine is cool before working. Disconnect the battery before attempting any electrical repairs to prevent accidental shorts or injury.
Common Symptoms
- Check Engine Light illuminated
- Engine misfires or rough idle
- Engine stalls unexpectedly
- Hard starting or no-start condition
- Reduced engine power or acceleration
Common Causes
- Faulty crankshaft position sensor
- Damaged or corroded wiring or connectors to the sensor
- Incorrect sensor air gap (rare)
- Interference from other electrical components
- Faulty Engine Control Module (ECM) (less common)
Frequently reported on: Chevrolet Silverado 1500 (2000-2006), Ford F-150 (1997-2003), Honda Accord (1998-2002), Nissan Altima (2002-2006)
Diagnostic Steps
- Safely lift and support the vehicle if needed to access the sensor.
- Locate the crankshaft position sensor, often near the crankshaft pulley or on the engine block.
- Inspect the sensor's wiring harness and connectors for any signs of damage, corrosion, or loose connections. Repair as necessary.
- Disconnect the old crankshaft position sensor.
- Install a new, high-quality crankshaft position sensor.
- Reconnect the wiring harness and ensure it is secure.
- Clear the P0336 code using an OBD-II scanner and test drive the vehicle.
👨🔧 When to Call a Professional
If diagnosing complex wiring issues, or if the code persists after replacing the crankshaft position sensor, it's best to consult a professional mechanic. ECM issues are rare but require specialized tools.
Commonly Asked Questions
Can I drive with a P0336 code?
It's not recommended to drive with a P0336 code, as it can cause unexpected stalling or a no-start condition, which could be dangerous.
What's the difference between P0335 and P0336?
P0335 indicates a general circuit malfunction for the crankshaft position sensor, while P0336 specifically points to a range or performance issue with the sensor's signal.
How much does a crankshaft position sensor replacement cost?
The cost for a new sensor typically ranges from $50-$200 for the part, with labor costing an additional $100-$300, depending on the vehicle and shop.
Do I need to reprogram anything after replacing the sensor?
In most cases, no reprogramming is required. However, some vehicles might benefit from an ECM reset or a crankshaft position variation learn procedure (CKP relearn) after replacement.
What tools do I need to replace a crankshaft position sensor?
Basic hand tools like wrenches, sockets, and possibly a floor jack and jack stands for access. An OBD-II scanner is essential for reading and clearing codes.