Crankshaft position sensor replacement typically costs between $150 and $400 for parts and labor combined, though the range depends on your vehicle make, model, and whether you use a dealership or independent shop

The crankshaft position sensor tells your engine's computer where the crankshaft is in its rotation cycle. When it fails, your car won't start, runs rough, or stalls without warning. Replacement is not optional — the sensor must work for the engine to run at all.

The actual cost breaks into two parts: the sensor itself and the labor to install it. A new sensor runs $50 to $250 depending on your vehicle. Labor typically adds $100 to $200 more. Dealerships charge more per hour than independent mechanics, and some vehicles require more time to access the sensor than others.

Key Takeaways

  • Parts cost $50 to $250; labor adds $100 to $200, so total replacement usually falls between $150 and $400.
  • Dealerships charge roughly 30 to 50 percent more than independent shops for the same repair.
  • Some vehicles require removing the engine cover, timing belt cover, or other components, which increases labor time and cost.
  • A failing sensor causes a check engine light, hard starting, or stalling; these symptoms mean the repair cannot be postponed without risking a breakdown.

Why the price varies so much between vehicles

The crankshaft position sensor sits near the crankshaft, which is deep inside the engine on most cars. On some models — particularly older Fords, Chevrolets, and Dodges — the sensor is mounted on the outside of the engine block and takes 15 minutes to replace. On others, especially some Hondas and Nissans, the sensor sits behind the timing cover or requires removing the intake manifold, turning a 30-minute job into a 2-hour job.

Your vehicle's year, make, and model determine both the sensor cost and the labor time. A 2015 Honda Civic sensor costs less and takes less time to reach than a 2008 Audi A4 sensor. Always get a quote from your mechanic before authorizing the work, because they can tell you the actual labor hours for your specific vehicle.

Dealership versus independent mechanic pricing

Dealerships typically charge $120 to $180 per hour for labor, while independent shops charge $80 to $120 per hour. On a one-hour job, that difference is $40 to $100. On a two-hour job, it doubles. Dealerships also mark up parts higher than independent shops do, sometimes by 20 to 40 percent.

Dealerships do have one advantage: they stock the exact sensor for your vehicle and can often fit you in quickly. Independent shops may need to order the part, adding a day or two to the repair. If your car is still under warranty, the dealership is your only option for warranty coverage on the repair itself.

What affects labor time and total cost

The sensor's location is the main driver of labor time. Sensors mounted on the outside of the block take 0.5 to 1 hour. Sensors behind timing covers, inside the engine bay, or requiring intake manifold removal take 1.5 to 3 hours. A few high-performance or luxury vehicles require 4 or more hours because the sensor sits in a location that demands removing multiple components.

Your mechanic's diagnostic fee — usually $75 to $150 — may or may not be waived if you proceed with the repair. Some shops credit the diagnostic fee toward the total; others charge it separately. Ask before you authorize diagnostics.

OEM versus aftermarket sensor costs

An OEM (original equipment manufacturer) sensor is made by the company that built your car. An aftermarket sensor is made by a third-party supplier. OEM sensors cost 20 to 50 percent more but carry a longer warranty — often 3 years or unlimited miles. Aftermarket sensors cost less upfront but may carry only a 1-year warranty.

Most independent shops recommend OEM sensors for crankshaft position sensors specifically, because a failed sensor leaves you stranded. The extra cost for reliability is usually worth it. Dealerships use OEM parts by default. If you choose an independent shop, ask whether they use OEM or aftermarket and what warranty comes with each option.

Signs your crankshaft position sensor is failing

A failing sensor produces a check engine light, usually with code P0335, P0336, P0337, or P0338. Your car may also have trouble starting, run rough at idle, stall while driving, or lose power under acceleration. Some vehicles start and run fine one day, then won't start the next.

These symptoms can overlap with other problems — a bad alternator, weak battery, or failing ignition coil can cause similar signs. That is why a proper diagnosis is important before you pay for a sensor replacement. A mechanic can read the diagnostic code and test the sensor's output to confirm it is the problem.

How to reduce the cost

Get quotes from at least two independent shops before choosing one. Call ahead and tell them your vehicle's year, make, model, and the symptoms you are seeing. Many shops will give you a rough estimate over the phone based on their experience with that vehicle. Compare the parts cost, labor rate, and total estimate.

If your vehicle is out of warranty and cost is a concern, an aftermarket sensor with a 1-year warranty can save $30 to $80 compared to OEM. Just understand that if the aftermarket sensor fails after the warranty expires, you will pay for another replacement. For most people, the OEM option is the safer choice.

Some independent shops offer discounts if you bring your own parts, but this is risky with sensors. If the part is defective or installed incorrectly, you may have no recourse. It is usually safer to let the shop source the part and stand behind the installation.

Frequently Asked Questions

Can I drive with a bad crankshaft position sensor?

Not safely or for long. A failed sensor prevents the engine from running at all, or causes it to stall without warning. You risk being stranded on the highway or in traffic. If your check engine light is on and diagnostics point to the sensor, the repair should not be delayed.

How long does the repair take?

Most repairs take 1 to 2 hours at a shop. If the sensor is hard to reach on your vehicle, it may take 3 hours or more. Call your mechanic for an estimate based on your specific car. You can usually drop the car off in the morning and pick it up the same afternoon.

Will replacing the sensor clear the check engine light?

Yes, once the new sensor is installed and the engine runs normally, the light should turn off on its own after a few drive cycles. If the light stays on after the repair, tell your mechanic — there may be a second problem or the sensor may not have been installed correctly.

Is the crankshaft position sensor covered under warranty?

If your car is still under the manufacturer's warranty, yes — the sensor and labor are covered. If the warranty has expired, no. Some extended warranties cover sensors; check your paperwork or call your warranty provider to confirm.

What is the difference between a crankshaft sensor and a camshaft sensor?

The crankshaft sensor monitors the crankshaft's position; the camshaft sensor monitors the camshaft's position. Both send signals to the engine computer. They are different parts with different costs and locations. A mechanic's diagnosis will tell you which one is failing.