Crankshaft Position Sensor Replacement cost in Bountiful in 2023

The average cost for a crankshaft position sensor replacement is $140 and the range is generally between $63 and $334.

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Crankshaft Position Sensor Replacement costs by shop in Bountiful.

CarAdvise Customers save an average of $28 on Crankshaft Position Sensor Replacement.


Average cost of Crankshaft Position Sensor Replacement for popular vehicle models in Bountiful:

THE IMPORTANCE OF Crankshaft Position Sensor Replacement

What is a crankshaft position sensor and how does it work?

A crankshaft position sensor is a device that uses a magnetic field to sense or read the position of the crankshaft as it rotates. Data related to the position of the crankshaft is passed along to the engine’s main computer, the Engine Control Module, or ECM.

In order for your engine to run properly, each of its internal components must move together in concert the way instruments play along with one another in an orchestra. Synchronized by the timing belt, the crankshaft, pistons, valves, and camshaft(s) all need to play together at the same time and in relationship to the fuel injection and ignition systems. One of the ways it does so is through the use of two types of sensors, one for the camshaft and the other for the crankshaft.

Mounted near the bottom of your engine where the crankshaft protrudes through the engine block, the crankshaft position sensor sends information about the position of the crankshaft to the ECM. There it is used to determine the relationship of the crankshaft to the camshaft(s). If they are not timed correctly, the ECM makes adjustments to the fuel injection and ignition systems to make sure your engine runs at maximum efficiency and power, and to avoid internal damage and premature wear.


How do I know if my vehicle needs a crankshaft position sensor replaced?

When the ECM detects that your engine is operating “out of time” for some reason - in this case because the crankshaft is not in time with the camshaft(s) - it will turn on the check engine light to let you know there is a problem. A diagnostic scan of the associated trouble code should reveal a problem with the crankshaft position sensor. Other associated signs of a bad crankshaft position sensor might include:

Reduced horsepower and a decrease in engine efficiency

Engine stalls unexpectedly or fails to start

Hesitation upon acceleration

An uneven idle or misfire


How does a technician perform Crankshaft Position Sensor Replacement ?

Since the crankshaft position sensor is located near the bottom of your engine, the most effective way for a technician to gain access is from underneath. Therefore, a technician will likely lift and support your vehicle in the air and remove any shields or guards that are in the way. The connector from the wiring harness is then unplugged from the sensor and the mounting fasteners are removed. Care must be exercised as the technician dislodges the crankshaft position sensor from the engine. A fresh o-ring seal is prepped and installed on the new sensor, the sensor is mounted and fastened inside the engine, and the wire is connected.

Once all components are back in place and your vehicle is back on the ground, the technician will clear any related engine trouble codes with a scan tool and verify that the repair was successful.


Can a car run without a crankshaft position sensor?
The crankshaft position sensor is among the most important engine management components in your vehicle. Without this sensor, your vehicle will probably not run at all. And if it does, it will do so poorly, likely with an engine misfire, reduced fuel efficiency, and other issues.
What happens if you don't replace a crankshaft position sensor?
Without a working crankshaft position sensor, the Engine Control Module will be unable to set the ignition timing properly. If your engine is able to start at all, a misfire and rough idle are likely. Engine stalling is possible. And poor fuel economy is likely.
Can a crankshaft position sensor cause transmission problems?
The crankshaft position sensor may also be used by the transmission to detect the input shaft speed. Your transmission uses this data to determine when to shift gears. So, not only will a bad crankshaft position sensor impair engine function, it can also lead to transmission problems.

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