Crankshaft Sensor
If your engine cranks but won't start, or stalls without warning, a failing crankshaft sensor is a likely cause. This sensor tells the computer the engine's position and speed so timing and spark fire correctly. We diagnose it accurately and replace it to get you reliably back on the road.
Find a TechnicianCommon causes
- Heat damage to the sensor from prolonged engine bay temperatures
- Worn or cracked sensor body failing intermittently
- Damaged wiring, connector, or open circuit
- Metal debris or oil buildup on the sensor tip
- A worn or misaligned reluctor (tone) ring on the crankshaft
Frequently asked questions
What are the signs of a bad crankshaft sensor?
Common signs are hard starting or no start, sudden stalling, rough idle, and a check engine light. We confirm with a scan and live testing before replacing it.
Is it safe to drive with a failing crankshaft sensor?
Not really. It can cause unexpected stalling at any moment, which is dangerous in traffic. We recommend getting it fixed as soon as you notice symptoms.
How it works
Describe the issue
Tell us what's going on with your car. Our platform matches you with verified providers who handle this exact problem.
Connect with a provider
Browse verified mobile mechanics and auto service pros near you. Read real reviews and pick the best fit.
Get it fixed
Your provider comes to your location, diagnoses the issue on the spot, and gets you back on the road.