Q: If my car needs a new crankshaft position sensor, will it still run?

asked by on

My #1 cylinder is misfiring. The computer says crankshaft position sensor. Would my car run if that needs replaced? Cause my car starts without any problem, but it sputtered and smells like rotten eggs.

My car has 150000 miles.
My car has an automatic transmission.

Hello. The crankshaft position sensor will not usually cause a misfire, but in rare cases it can. Since there is a misfire on the number one cylinder, the source of that issue needs to be confirmed before you do anything else. It may be caused by a spark plug or ignition coil or even an internal engine problem. I would start by checking the plug and coil to see if they are bad, and if those are fine, then I would do a compression test. Typically, one of these areas will be the source of the problem. These would also cause the smell that you’re describing, as a misfire will overheat the catalytic converter. As for whether your car will still run with a misfiring cylinder, it certainly can, but to drive in this condition is risky. Consider contacting a certified technician, such as one from YourMechanic, to properly diagnose and repair your misfiring cylinder.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. If my car needs a new crankshaft position sensor, will it still run?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Loss of power like misfire under any load

Hello. To start, you mentioned that you had switched out the fuel injectors. Have you checked the fuel pump and filter? Being 16 years old, the vehicle may be struggling due to lack of fuel pressure. The Check Engine...

Q: I put a 4x4 (Jell Type Marine) battery in my sedan. Car starts and runs but loses power and completely stops.

Hi there. The battery is not holding a proper charge. Check the alternator and see if its producing a voltage of 13.5 to 14.7. If so, then have the alternator checked for the amperage that it puts out and see...

Q: I have code P0305 on it. Ive heard it's cylinder #5 misfiring but I don't know what the issue may be.

The code P0305 is indication that cylinder number 5 is not firing all the time. When you see the check engine light flashing then the cylinder is actively misfiring. You should have the spark plug and coil checked for problems...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...