Skip the auto shop - Our mechanics make house calls

Q: Bad crank sensor

asked by on

My car has gone around 120,000 miles. At the dealership I was told that I have a bad crank sensor. It was supposedly caused by a broken fan, as a result of a rock being stuck in the alternator. I took the car to a mechanic I know and he told me there is a small likelihood of that happening. I'm reluctant to fix something that isn't necesssary, especially because it is not under warranty. How can I know for sure?

Hello. Just about anything is possible but it is unlikely. I have seen crank sensors go bad and cause many issues, but if you are not having any other issues then I think that it is unlikely. If I knew what the issues were with the car I could tell you for sure.

If you want a second opinion, consider YourMechanic, as a certified mechanic can come to you home or office to diagnose and ]replace your crankshaft position sensor](https://www.yourmechanic.com/services/crankshaft-position-sensor-replacement) if necessary.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 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!

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: The temperature part of my air conditioning works but the directional part of it is stuck on defrost

Hi There, It sounds like you may have a faulty blend door actuator. Inside your vehicle's vent system, there are small doors that open and close to change the flow of air running through the system. These doors are operated...

Q: Starter parts

Hello. You will need all of the bolts for the intake manifold, intake manifold gaskets, and starter bolts. The bolts must be replaced because they are made from aluminum, and are designed for one-time use. Gaskets should always be replaced...

Q: My truck's battery volts keep dropping and I can't accelerate

Hi there. Intermittent power loss could be caused by a loose wire or the computer losing power. First, try checking the battery and alternator connections. Make sure that all of the cables are tight and free from any corrosion. Then,...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...