How to Replace a Car's Sensor Ring How to Replace a Car's Sensor Ring

What You'll Need
Screwdriver
Socket wrench
Rubber "O" ring (this can be found at an auto store or on line)
Pacer Spacer
Replacement position sensor if needed

Replacing the sensor ring on a car can be a tricky job if you have never done it before. Thankfully though, with the right instruction anyone can do it on their own. Here are a few steps that can help to get this job done with success.

Step 1 – Turn Car Off and Disconnect

The first thing that you need to do is make sure that you shut the car off and let it cool before working on it. This keeps you from causing any danger to either you or the car. Once the car has cooled down, you can disconnect the battery cables. This will help you to prevent further damage. To do this, open the hood by pressing the hood release button in your car. Then, reach under the hook and un latch the hood. Once the hood is up you can keep it up with the stand to prevent you from having to hold it while you work. Then carefully detach the battery ground, which is the negative one.

Step 2 – Find the Sensor

This may be the most difficult part of this task is locating the actual sensor. It is best to use a manual for your car as the location may vary with different models. Typically it is located near the front of the engine or you can check by the side and rear which is more uncommon.

Step 3 – Disconnect Wires

Now, check out the 3 wires that you see leading up to the sensor. There are 3 different wires for the sensors output, the ground wire and the current feed. Disconnect these wires, but make sure that you keep track of which one is which. It is simple to mark them or you can draw a little map for yourself to remember. It is a pain to have to put them together later when you do not know.

Step 4 – Remove Sensor

Now remove the actual sensor from its position. Typically you will just need to use a wrench or screwdriver to loosen it up and then twist it out of there. Be careful not to hit anything else while you are working.

Step 5 – Install Replacement

Now, install the new sensor and ring in and use a screwdriver or wrench to tighten them up securely. Once you have done that you can hook the wires back into the places that they go. Re connect the battery and then shut the hood, making sure that everything is safe and secure before driving around.

If at any time you have a problem, stop what you are doing and allow a professional to take a look at it. Many car problems can be fixed before they escalate and end up costing a lot of money. Typically they will be able to spot the problem right away and help. 

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