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Crankshaft

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Symptoms of a Bad or Failing Crankshaft Position Sensor
Common signs include issues starting the vehicle, intermittent stalling, and the Check Engine Light coming on.
Symptoms of a Bad or Failing Crankshaft Seal
If your car is reaching high mileage or is experiencing oil leaks, it may be time to replace the crankshaft seal.
Symptoms of a Bad or Failing Crankshaft Harmonic Balancer
Common signs include engine vibration, misaligned timing marks, and a separated harmonic balancer.
How to Replace a Crankshaft Seal
Engine oil leaks are prevented by the crankshaft seal. Replacing one requires several tools, such as a dead blow hammer and a strap wrench.
How to Replace a Crankshaft Position Sensor
The crankshaft position sensor, along with the camshaft sensor, helps the vehicle determine top dead center, among other engine management tasks.
How Long Does a Crankshaft Position Sensor Last?
The crankshaft position sensor monitors the rotational speed and position of the crankshaft in the engine. It reports this information to the engine management system to control the ignition system timing....
How Long Does a Speed Timing Sensor Last?
Your car’s engine needs a considerable number of sensors in order to operate correctly. Oxygen sensors, the vehicle speed sensor, the mass airflow sensor – these are just a few of...
Why Crankshaft Seal Replacements Can Be Tricky
Changing a crankshaft seal, such as the front cover seal, can be challenging. It may involve working on the engine or another complex part of the car.
How to Replace a Speed Timing Sensor
Some signs of a failed speed timing sensor include a Check Engine Light and poor performance. It's also known as the crankshaft position sensor.
P0337 OBD-II Trouble Code: Crankshaft Position Sensor A Circuit Low Input
P0337 means that the crankshaft is suffering because of low voltage. This could be due to sensor not being aligned properly or electrical problems.
How a Modern Engine Works
You turn your key in the ignition, and the engine fires up. You press the gas and the car moves forward. You take the key out and the engine turns off. That’s how your...
3 Essential Things to Know About Your Car’s Tachometer
The tachometer is located on the dashboard next to the speedometer. It measures the revolutions per minutes (RPM). The tachometer can be a digital display or on a calibrated analogue dial. They are on both...
How to Buy a Good Quality Crankshaft Harmonic Balancer
It sounds musical, but what it really does is disperse vibrations that travel through the crankshaft to prevent damage to it and other vehicle components. The harmonic balancer, or vibration damper,...
How to Buy a Good Quality Crankshaft Position Sensor
Just like the name indicates, the crankshaft position sensor monitors the rotation speed and position of the crankshaft. The crankshaft is what turns the engine’s piston power into a force that...

Related questions

Question
What is the function of the crankshaft sensor in a 2005 Lincoln LS 3.9 liter v-8 ?
Hello - the crankshaft position sensor (CPS) provides an ignition timing reference information for the engine management for both ignition and fuel injection. Originally, the CPS provided only timing information for the ignition, replacing old-fashioned distributors. However, with newer, more...
Question
I want to know something about the Honda engine D15 crankshaft can work in a D13 block
Hi there. The D13 crankshaft will work in a D15 block, but will have to have long rods. The D15 crankshaft will not work in the D13 block for the D15 has long throws, so you will need short rods...
Question
Engine cranks, but does not fire
A crankshaft position sensor is an electronic device used to monitor the position or rotational speed of the crankshaft. This information is used by engine management systems to control the fuel injection or the ignition system timing and other engine...
Question
On a 2005 Kia Sedona's crankshaft sensor, I noticed there is a split in the sensor. After installing the sensor, it won't start.
Hello - there are two bolts on the sensor holding it to the engine. The sensor should bolt directly to the engine, with the 2 bolts providing proper alignment and positioning of the "slot." If you need additional assistance with...
Question
Changing engines. What engine has a power stroke every revolution?
Only two stroke engines have a power stroke once every revolution of the crankshaft. There is no vehicle that I know of or an engine in a car or truck that is not a four stroke gas or diesel engine....
Question
318 Won't start. How do you know when a cam is 180 degrees out?
Hey there. If you bring the number one cylinder up on its compression stroke and crankshaft set to top dead center, then take off the distributor cap to see if the distributor rotor is pointing to number one cylinder on...
Question
Do you have to remove the transmission on a 2003 Chevy Tracker with a 4 cyl. engine to replace the crankshaft position sensor?
Hi there. The crankshaft sensor is mounted behind the engine flex plate flywheel. The transmission and the flex plate flywheel needs to be removed to replace the crankshaft sensor. If you need help with a crankshaft sensor replacement, a certified...
Question
Engine shakes and plug wires when checked with timing light look something like Morse code
Hi there. I would still be suspicious of the coil packs. If you have access to an oscilloscope, I would look for pulses off the crankshaft and camshaft sensors. If sensor pulses are even, change the coil packs. If the...
Question
Code P0335. Crank position circuit code
Hello. Your crankshaft position sensor has failed. Most engines support a fall-back mode where engine timing is then determined by the cam position sensor. It is less precise than when the crank position sensor is used, but allows the engine...
Question
What is P0335 Crankshaft Position Sensor A Circuit and where is it located?
Hello - this message (P0335) indicates that the crankshaft position sensor is failing, causing the "cutting off" you have already noticed. It is located on the bottom of the engine/transmission interface (drivers side of the vehicle). To avoid any unnecessary...
Question
I have oil dripping from the steering damper all the way back to the transmission
I hear you, tracing oil leaks is hard! I suspect as you do that the leak is at the "nose" or front of the engine (possibly at the front crankshaft seal), and the higher oil pressure at road speed and...
Question
Car takes 7-10 seconds to turn over and crank. VDC and Slip Lights are on.
Hi there. Typically, when a vehicle is hard to ignite, it's related to ignition timing. However, there is no need to spend $2,500 from the dealership on that type of repair. The best thing you can do is contact one...
Question
My 2007 Grand Caravan hard detonation problem
As you know, a misfire can be caused by many different reasons such as bad spark plugs, spark plug wires, faulty fuel injectors, lack of voltage to fuel injectors, incorrect fuel pressure, an air intake leak and many other possibilities....
Question
Engine noise when cranking. P0011 and P0021 codes
Hi there. The P0011 OBD-II error code indicates that you have an over advanced timing issue, which might be the reason why your engine stumbles for a brief moment when it's cold and first starts. Ignition timing is typically monitored...
Question
There is a strong knocking sound coming from the engine. Today my car won't start. Service engine light is on. It keeps turning over
Hi there. When the crankshaft position sensor is damaged or faulty, it will cause intermittent starting issues, misfiring problems, or might cause the vehicle to fail to start entirely. The best way to resolve this issue is to contact a...
Question
I have a wobble on the pulley and an oil leak, is it going to need a main bearing?
Hi there. The two symptoms you're describing (the front oil leak and the crankshaft pulley wobble) are two of the best indicators that a professional mechanic should use to diagnose that the issue is the pulley or the seal behind...
Question
Will not attempt to start. Engine has spark. Also noticed oil was in the intake tube.
Hi there. Check to see if the fuel injectors are working. You can back probe them with a digital meter and see if the voltage is being metered. If the injectors are working, then check the crankshaft position sensor and...
Question
My car won't start after replacing flex pipe and Muffler
Technically, there is no connection at all between what was done on the exhaust system and the subsequent no start problem. Of course, it's always possible the Mechanic damaged something on the vehicle but such, if it occurred and if...
Question
Will my car turn on normally again once I fix the crankshaft position sensor?
A faulty crankshaft position sensor could cause hard starting but to determine if the sensor itself is faulty it has to actually be tested. Often, there will be a Diagnostic Trouble Code (DTC), that is generated by the car's computer,...
Question
I was driving on the highway and I lost power and the car cut off. The car will not start back up and it has gas in it has coming through the gas line.
Hi there. Check the ignition system and see if the spark plugs are sparking. If the spark plugs are not sparking, then check for power to the ignition coil. If there is no power to the ignition coil, then check...

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