Fred Beans is hiring all positions! Learn about the actions we're taking as we continue to hire during COVID-19.
5 Day Return Complimentary Inspection Quality Pre-Owned
« Back to Automotive News

Symptoms of a Bad Crankshaft Position Sensor

One of the most important parts of your vehicle is the engine and its parts like the crankshaft position sensor that keep your engine working properly. The crankshaft position sensor has the important job of monitoring the engine’s many moving parts including the crankshaft, engines valves, and pistons.

Schedule Service

While problems with this part of your engine can be detrimental, drivers in Philadelphia, Doylestown, and Mechanicsburg can easily spot issues before damage occurs with this guide. Read ahead to see what we at Fred Beans think are the 4 most common symptoms of a bad crankshaft position sensor:

  • Your “Check Engine” Light is Blinking
  • It’s Difficult to Get Your Vehicle to Start
  • Your Vehicle is Stalling and/or Backfiring
  • The Engine is Making Your Vehicle Vibrate

“Check Engine” Light is Blinking

Symptoms of a Bad Crankshaft Position SensorOne of the most common symptoms of a bad crankshaft position sensor is your “check engine” light coming on. After all, the purpose of light is to let you know when something is wrong under the hood so that you can get it fixed.

Your check engine light can come on for a number of reasons so whether or not it’s a crankshaft position sensor issue, you should have your engine checked out by a professional when this light comes on.

Difficult to Get Your Vehicle to Start

Another huge red flag is that you have difficult getting your vehicle to start. When you attempt to start your vehicle, your crankshaft position sensor begins monitoring the position and speed of the crankshaft immediately.

If this sensor itself is having a problem, it may cease to begin this process and the engine will refuse to turn on as a result.

Vehicle is Stalling and/or Backfiring

Symptoms of a Bad Crankshaft Position SensorAlong the same lines as the symptom above, a problem with your crankshaft position sensor could cause your vehicle to stall and/or backfire. Stalling is more common than backfiring as the interruption of the crankshaft signal can cause the engine to be cut off.

However, backfiring can also come along with this depending on how long that signal is out for and how fast you’re driving at the time.

Engine is Making Your Vehicle Vibrate

One last symptom of a bad crankshaft position sensor is noticeable vibrating coming from the engine. Some would speculate that there’s always a bit of vibration coming from under the hood when the engine is running. However, if you notice a drastic increase in this vibrating, it’s like a result of a problem with the crankshaft position sensor.

This vibrating also usually comes paired with a severe drop in fuel economy and power. It’ll take much more power and gas to get where you need to go.

Need Some Assistance with Your Crankshaft Position Sensor?

We at Fred Beans hope this guide to the most common symptoms of a bad crankshaft position sensor gave you all the information you need to diagnose any future problems you may have. However, if any of these symptoms sound familiar, it may be time to have a professional take a look.

Drivers in Philadelphia, Doylestown, and Mechanicsburg should give us a call at our convenient on-site service center today to schedule an appointment!

You May Also Like: