Categories

Additional Information

Site Information

 Loading... Please wait...

Worldwide Shipping

  • My Account
  • All prices are in USD

J&B Auto Tool News

What Is a Camshaft Position Sensor?

Posted on

Has your vehicle been diagnosed with a bad camshaft position sensor? Also known as the top dead center (TDC) sensor, the camshaft sensor plays an important role in the function of modern-day vehicles. Unfortunately, though, most drivers have never even heard of this component, let alone know its function. So, what is the camshaft position sensor exactly?

Overview of the Camshaft Position Sensor

The camshaft position sensor is responsible for collecting data about your engine's camshaft, specifically the speed at which the camshaft rotates, and providing this data to your vehicle's engine control module (ECM). The ECM, of course, is the main computer that's responsible for regulating various components and functions in your vehicle. Once the ECM receives data from the camshaft position sensor, it sends the appropriate commands to dictate ignition timing as well as fuel injection timing.

Symptoms of a Bad Camshaft Position Sensor

A bad or failing camshaft position sensor may cause a variety of symptoms, one of which is the Check Engine Light (CEL). If you see the CEL illuminated in your vehicle's dashboard, either take your mechanic to have the code read or read the code yourself using an OBD2 scanner tool. You can then look up the code to see if the fault is associated with the camshaft position sensor.

The CEL won't always illuminate if your vehicle's camshaft position is bad. With that said, there are other symptoms that may indicate a bad or failing camshaft position sensor. In addition to the CEL, you may experience frequent engine stalling. This is because the fuel injection timing is off, so your vehicle's engine isn't receiving fuel from the injectors at the right time.

Poor fuel economy is another symptom of a bad or failing camshaft position sensor. Again, this is due to the fact that the camshaft position sensor controls fuel injection timing. When this occurs, your vehicle's fuel injectors may pump an excessive amount of fuel into your engine's combustion chamber.

Some vehicles may enter limp mode when the camshaft position sensor fails. Of course, limp mode refers to a state in which a vehicle's power is significantly reduced. It's designed to protect the vehicle from potentially catastrophic damage.

If your vehicle has a bad or failing camshaft position sensor, you should get it replaced as soon as possible. Because of its role in ignition timing and fuel injection timing, the camshaft position sensor is an important component that shouldn't be overlooked.

View Comments


Brake Pads 101: Everything You Need to Know About Brake Pads

Brake pads are an essential component of your vehicle's braking system. Consisting of steel plates coating with friction material, they are designed to convert the kinetic energy produced by your vehicle into thermal energy via friction. In each of your vehicle's brake calipers, there are two brake pads -- one on each side. For a [...]

Read More »


5 Signs of a Failing Fuel Filter

The fuel filter is an important component used in all cars, trucks and other vehicles powered by a combustion gas engine. As with other filters, it's designed to catch and hold impurities. As fuel travels from your vehicle's tank to the engine, it passes through the filter where dirt, debris, sediment and other impurities are [...]

Read More »


Why You Should Fix Your Vehicle's Cracked Windshield

Does your vehicle have a cracked windshield? While the exact number is unknown, automotive experts say that millions of vehicles on the road have a cracked windshield. Whether it's a small hairline fracture or a complete eggshell, though, you shouldn't let it go unnoticed. Driving a vehicle with a cracked windshield is a bad idea [...]

Read More »


Refrigerant Recharge: How to Keep Your Car's AC Ice Cold

Does your car's air conditioning blow warm or room temperature air? With the summer weather upon us, you'll want to make sure your vehicle's air conditioning is functioning problem. If it doesn't, you can expect some sweaty and uncomfortable rides ahead of you. The good news is that most air conditioning problems can be solved [...]

Read More »


How to Replace a Blown Headlight Bulb

Does your car have one or more blown headlights? If you intend to drive at night -- which most people do -- you'll need to ensure all your headlights function properly. With even one blown headlight, nighttime visibility will be reduced, thus increasing your risk of collision. Furthermore, you could up getting ticketed if you [...]

Read More »


Survey Shows Motorists Would Welcome Self-Driving Cars

The idea of self-driving or "autonomous" cars is no longer science fiction. General Motors (GM), Volkswagen, Nissan, Toyota, Volvo and several other globally known and recognized automakers are currently developing their own self-driving cars. While some motorists are skeptical of self-driving cars, however, a new survey has found that most would welcome them.About the SurveyAccording [...]

Read More »


What Is an Exhaust Leak and How Does It Affect My Vehicle's Performance?

If your vehicle has been diagnosed with an exhaust leak, you'll probably have some unanswered questions, such as how it will affect your vehicle's performance and whether it's safe to drive. While the severity of exhaust leaks varies, they'll almost always create one or more symptoms. And if you don't get it fixed, it could [...]

Read More »


5 Signs Your Vehicle's AC Compressor Is Going Out

The compressor is an essential component of your vehicle's climate-control system. When summer rolls around and the temperatures begin to rise, you'll probably turn on your vehicle's air conditioning to keep cool when driving. But if the compressor is going out -- or if it's already gone out -- you may struggle to achieve a [...]

Read More »


What Is Engine Blowby?

Also known as engine blowback, engine blowby is a common problem encountered by drivers of older-model vehicles. While it often begins with minor symptoms, such as trace amounts of oil spilling out of the dipstick port, it can lead to more serious problems if left unaddressed. So, what is engine blowby exactly?Engine Blowby ExplainedBlowby is [...]

Read More »