Crank shaft sensor is a crucial part of car's engine in modern automobile engineering. It monitors engine's various components via the vehicle's computerized engine management system. This sensor helps to look overall engine functions, track the speed of crank shaft rotation and also check for the engine valves with respect to the pistons.

1. Symptoms of a Bad Crank
Shaft Position Sensor

2. Crank shaft sensor is a crucial part of car's engine in
modern automobile engineering. It monitors engine's
various components via the vehicle's computerized
engine management system. This sensor helps to look
overall engine functions, track the speed of crank shaft
rotation and also check for the engine valves with respect
to the pistons. The warning signs of a bad crank shaft
position sensor can be detected easily by the driver and
ignoring such symptoms will result in wear and tear of
various engine parts.

3. Blinking of “check engine light”: The most obvious and
simplest symptom of a car's bad crank shaft position
sensor is the blinking check engine light. As the light is
programmed to work well in advance, it allows you to take
care of the malfunction before the car is left stranded.
Once the light starts blinking make sure to take your
vehicle for servicing.
Malfunctioning of ignition: The signals that are to be
transmitted by the crankshaft sensor to the computer begin
to get low when the crank shaft sensor begins to fail. This
failure causes the spark plugs to die out and thus have a
negative impact on the engine's system. A problem in
switch starting a car indicates that it has a bad crank shaft
position sensor.

4. Vibrations in engine: Crank shaft position sensor helps
to regulate its position and in case if the sensor fails to do
so, a considerable rise in engine vibration occurs. This
ruins the engine power as well as the mileage.
Backfiring and stalling: A constant back firing and
stalling is one of the signs of a defective crank shaft
sensor. In this case, the engine is more prone to
stalling/stopping as you drive for few seconds. The
engine gets backfired if one ignores the warning signs
where the engine gets exhausted and ultimately dies out.
Rough idling: One can feel that the car's engine vibrate
or runs rough at its idling if its crank shaft position
sensor is defective.

5. Reduced gas mileage: With a bad crank shaft sensor, the
engine will not receive required amount of fuel at the
right time thus resulting in lower fuel efficiency.
Problems with acceleration: A failed crank shaft sensor
will not send right information to the car's computer
which is important to make adjustments in fuel injection
and spark timing. Without accurate information from the
crank shaft, ECU (Engine Control Unit) will not be able
to coordinate the engine pistons together resulting in the
inability to maintain speed and poor acceleration.
If you are experiencing the above mentioned disruptions,
it might be the right time to overhaul your vehicle's crank
shaft position sensor.

6. Airtex Fuel Delivery Systems is the leading aftermarket
supplier of mechanical and electric fuel pumps and
modular reservoir assemblies (MRA). For over 50 years,
Airtex fuel pumps have been the benchmark fuel delivery
components for leading companies in the automotive
aftermarket. If you are looking for an electric fuel pump,
visit us at: Airtexproducts.com.