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Temporary Fix for Crankshaft Position Sensor (Complete Guide)

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Last Updated on: 7th September 2023, 12:46 am

If your vehicle’s crankshaft position sensor (CPS) fails, it can cause a number of problems, including engine stalling, reduced power, and difficulty starting the vehicle.

While replacing the CPS is the best long-term solution, there are a few temporary fixes you can try if you are in a bind.

In this article, we will see if there is a temporary fix for a crankshaft position sensor problem and risks and limitations of each fix.

What is a Crankshaft Position Sensor?

The crankshaft position sensor is a vital component of your vehicle’s engine management system, it is among the many sensors of a vehicle.

It is responsible for sensing the position of the crankshaft and sending this information to the engine control module (ECM).

The ECM uses this information to adjust the ignition timing and fuel delivery to optimize engine performance.

If the CPS fails, it can cause a number of problems, including engine stalling, reduced power, and difficulty starting the vehicle.

In some cases, the CPS may simply need to be cleaned or replaced, but in other cases, more extensive repairs may be necessary.

crankshaft position sensor

Temporary Fixes for a CPS Problem

If you are experiencing a problem with your CPS and need a temporary fix, there are a few options you can try.

  1. Cleaning the sensor
  2. Jumper wire fix
  3. Using starter fluid

1. Clean the Sensor

In some cases, the CPS may simply be dirty or coated in grime, which can cause it to malfunction.

To clean the CPS, remove it from the vehicle and use a small soft wire brush or a can of compressed air to remove any dirt or debris.

2. Jumper Wire Fix

Some mechanics have reported success using a jumper wire as a temporary fix for a CPS problem. To try this fix, locate the CPS wiring harness and use a jumper wire to bypass the sensor.

This may allow the vehicle to start and run, but it is important to note that this fix is not a permanent solution and the CPS should be replaced as soon as possible.

3. Use Starting Fluid

If the vehicle is having difficulty starting due to a CPS problem, you can try using starting fluid to temporarily get the engine running.

Simply spray a small amount of starting fluid into the intake manifold and try starting the engine.

This may allow the engine to start and run, but it is important to note that starting fluid is highly flammable and should be used with caution.

Risks and Limitations of Temporary Fixes

It is important to note that the above temporary fixes are not permanent solutions and should only be used in a pinch.

Using a jumper wire or starting fluid as a temporary fix for a CPS problem can be risky and may cause further damage to the vehicle.

It is always best to replace the CPS as soon as possible to ensure the proper functioning of the engine management system.

Conclusion

If you are experiencing a problem with your vehicle’s crankshaft position sensor, there are a few temporary fixes you can try.

These include cleaning the CPS with a soft brush or compressed air, using a jumper wire, or using starting fluid.

It is important to note that these fixes are not permanent solutions and the CPS should be replaced as soon as possible to ensure the proper functioning of the engine management system.

  • Andy Lewin

    Andy Lewin is a senior mechanic, ASE qualified master technician, and an experienced automotive engineer. He's passionate about serving the automotive community with the highest-quality and trustworthy information on all things automotive. He loves to write about car repairs, maintenance, car modifications and tuning, faults, and much more.

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