have a read....a general overview Tom.
3 Symptoms of a Failing Camshaft Sensor
3 Symptoms of a Failing Camshaft Sensor
A failing camshaft sensor can be identified based on any one of the three following symptoms.
1. "Check Engine" Light
The first symptom of a failing camshaft sensor manifests as a warning from the car’s control module. As the camshaft sensor fails, the computer sends the driver a warning sign via the “check engine” light on the car’s dashboard. When the check engine light first comes on, the driver has enough time to service the car and replace all faulty parts, including the failing camshaft sensor. However, if you ignore this flashing light for a considerable time, it could later lead to severe engine trouble.
2. Disrupted Driving
Another symptom of a failing camshaft sensor is experiencing constant disruption while driving. If you are experiencing symptoms like frequent stalling, poor idling of the car at 500 to 600 rpms, a massive drop in the rpms slowing down the car to a crawl, a noticeable drop in engine power, poor mileage, abnormal acceleration activity, frequent stumbling, etc., it probably means you have a failing camshaft sensor that needs immediate attention. If you are experiencing any of these symptoms, it is best to seek a mechanic before the situation gets worse and the car gives up, refusing to start at all.
3. Ignition Trouble
If you ignore all of the above symptoms, you end up with one that really can’t be ignored—no ignition. Remember, as the sensor begins to weaken, so does the signal it transmits to the car’s computerized control station. If you let the problem carry on for too long, the engine will suffer from a “no spark” situation. Once the signal switches off, so will your engine, thereby stranding you. Thus, it is best not to let your car get to this stage.
Warning Signs of a Bad Crankshaft Position Sensor Warning Signs of a Bad Crankshaft Position Sensor
it needs immediate attention. Ignoring the symptoms of a bad crankshaft position sensor will result in rapid wear and tear of the various parts of the engine and will quickly lead to engine wear-out. Fortunately, warning signs of a bad crankshaft position sensor are easy for the driver to detect. Read through the following points and keep an eye out for any one of these warning signs.
The Blinking of "Check Engine" Light
The simplest and most obvious symptom of a failing crankshaft position sensor is the blinking “check engine” light in your car. Fortunately, this light is programmed to come on well in advance, allowing you to take care of the problem before the car is left immobile and you are left stranded. Once the light comes on, be sure to contact your mechanic for a quick look-over or take your car in for servicing.
Ignition Malfunction
When the crankshaft position sensor begins to fail, the signal it transmits to the vehicle’s computer begins to weaken. If left unattended, the signal will switch off completely. This, in turn, causes the car’s spark plugs to die out, killing the engine. If you are having problems starting your car, it could indicate a bad crankshaft position sensor.
Stalling and Backfiring
Another sign of a sensor malfunction is the constant stalling and backfiring of the engine. In such a scenario, the engine is prone to cutting off from time to time, stalling as you drive for a few seconds. Unlike ignition malfunction, the car will probably start, even run for a while, only to shut down somewhere along the way. It goes the same for engine backfiring. If you keep ignoring the warning signs though, the engine may get exhausted and die out.
Engine Vibrations
As mentioned above, the sensor regulates the crankshaft position. Once the position sensor begins to fail, you’ll notice a considerable increase in engine vibration. This in turn will ruin your mileage as well as engine power.
