The crankshaft is one of your engine's most essential components. It converts the up-and-down movement of the pistons into the rotational force that powers your wheels. If the crankshaft or its associated sensor begins to fail, your vehicle may start to behave strangely, sometimes without warning. At Chevrolet Van Nuys, our technicians often see drivers overlook early warning signs until bigger issues develop. Here’s how to tell if it’s time to schedule Chevrolet service.
Trouble Starting or Frequent Stalling
A failing crankshaft position sensor can disrupt the timing of fuel injection and spark delivery. This can make it hard to start your vehicle or cause it to stall suddenly while idling or driving. If you’ve had to turn the key more than once to start your Chevy, or it shuts off unexpectedly, this may be your culprit.
Irregular Engine Performance
Engine misfires, rough idling, and sluggish acceleration are all signs that your engine may not be getting accurate timing signals. These symptoms often point to a crankshaft sensor that’s either dirty, damaged, or failing to send consistent information to the engine control unit (ECU).
Check Engine Light
One of the most common alerts for a crankshaft issue is an illuminated check engine light. Modern Chevrolet vehicles are equipped with onboard diagnostics that can detect timing inconsistencies. A diagnostic scan at our service center can quickly confirm whether the crankshaft position sensor is the problem or if another component is involved.
Engine Vibrations
If the crankshaft itself is imbalanced or has sustained physical damage, especially in high-mileage vehicles, you may notice vibrations, particularly when the engine revs. Over time, these vibrations can lead to premature wear on bearings and other engine parts, making timely diagnosis essential.
Decreased Fuel Efficiency
Poor timing caused by crankshaft issues can also result in reduced combustion efficiency. If you find yourself filling the gas tank more often, even though your driving habits haven’t changed, it may be a sign that your engine isn’t performing optimally.
Schedule a Crankshaft Inspection at Chevrolet Van Nuys
If you’re noticing any of these warning signs, don’t wait until the problem worsens. Visit or contact Chevrolet Van Nuys today or schedule your service appointment online to keep your engine running strong and your mind at ease. Whether it’s a sensor replacement or more in-depth crankshaft repair, we’ll get your Chevy back in peak condition.