
How do you fix a camshaft sensor?
- Locate the sensor.
- Disconnect the negative battery cable.
- Remove the sensor electrical connector.
- Remove the sensor mounting screw (s).
- Remove the sensor.
- Disconnect the negative battery cable.
- Locate the sensor. ...
- Release the tab on the sensor to disconnect the wires from the sensor.
- Remove the mounting bolt which attaches the sensor to the engine. ...
- Pull the sensor off with a slight twist.
How much does it cost to replace a camshaft sensor?
To replace a camshaft position sensor, you can expect to pay anywhere from $120 to $300.Parts alone will run about $50 to $200. Labor costs will be in the range of $70 to $100 for professional replacement. Expect to pay more if you have a luxury vehicle or are having your local car dealership perform the replacement.
What are the signs of a bad camshaft sensor?
- What Is a Camshaft Position Sensor and What Does It Do?
- What Are the Symptoms of a Bad or Failing Camshaft Position Sensor? 1. Check Engine Light Comes On 2. Poor Drivability 3. Transmission Shifting Problems 4. Bad Fuel Economy
- The Engine Will Not Start
How to check if camshaft position sensor is bad?
TEST 1: Testing The Camshaft Position Signal Generally, when the camshaft position sensor fails, it'll usually stay stuck producing a single voltage value as the engine turns. For our first test we'll connect a multimeter to the CMP signal wire and check to see if the sensor's signal voltage is switching between 5 Volts and 0 Volts.
How do you fix the camshaft position sensor?
- P0345 – Camshaft position (CMP) sensor A, bank 2 – circuit malfunction
- P0346 – Camshaft position (CMP) sensor A, bank 2 – range/performance problem
- P0347 – Camshaft position (CMP) sensor A, bank 2 – low input
- P0348 – Camshaft position (CMP) sensor A, bank 2 – high input
- P0349 – Camshaft position (CMP) sensor A, bank 2 – circuit intermittent

Is a camshaft position sensor easy to replace?
It may be easiest to remove and replace the camshaft sensor from under your vehicle, but it can also be done from the top by removing the air filter housing.
How long does it take to change a camshaft sensor?
Replacing a camshaft position sensor typically takes between one and two hours. However, this may vary depending on the make and model of your vehicle.
What does a cam sensor do when it goes out?
Poor Drivability A failing camshaft position sensor begins losing its ability to quickly transfer data. Mismatched fuel delivery and ignition timing, even if off by a few milliseconds, will cause your vehicle to sputter, accelerate poorly, lack power, stall or even shut off.
How do you replace a camshaft sensor?
0:162:44How to Replace a Camshaft Sensor - YouTubeYouTubeStart of suggested clipEnd of suggested clipThen you need to take the one eight millimeter bolt off underneath reach down there. And get this onMoreThen you need to take the one eight millimeter bolt off underneath reach down there. And get this on. Done. Once you have that bowl out it should slide right out now sometimes they get stuck.
Can you replace a camshaft sensor yourself?
0:523:33How To: Replace a Camshaft Position Sensor - YouTubeYouTubeStart of suggested clipEnd of suggested clipSo be sure to know the specifics for your vehicle before getting started if you're not completelyMoreSo be sure to know the specifics for your vehicle before getting started if you're not completely comfortable doing this yourself we'd be happy to recommend a professional technician in your area.
How much does a camshaft sensor cost?
The sensor will cost somewhere between $50 and $100 depending on the manufacturer. Installation can vary depending upon the car, and will run from $40 to $200 depending upon the location. Sometimes other parts of the engine need to be removed in order to access the sensor, and this may include the valve cover.
Where is Cam sensor located?
The Camshaft Position sensor is typically located in the cylinder head of the engine and has a cylindrical portion that inserts into the head. The Crankshaft Position sensor is normally located in the timing cover or on the side of the block with a cylindrical portion that inserts into the block.
Is it worth replacing a camshaft?
Due to the manufacturing processes, repairing a camshaft is not often advisable. While some high-performance engines use camshafts that are repairable, it's not really cost effective or practical for the average car on the road. Instead, if your car needs a new camshaft, replacing it with a new one is the best choice.
How do I know if my camshaft is bad?
6 Symptoms of a Bad CamshaftActive check engine light.Loud ticking or tapping sounds.Metal debris in the engine oil.Cylinder misfire.Increased emissions as a result of misfiring.Visible signs of damage.
Can you drive without camshaft sensor?
Yes, it is safe to drive with a bad camshaft sensor. However, the performance of your engine will not be as good and fuel consumption may increase. If you have any trouble with your camshaft sensor, there are a few ways to test and diagnose the problem.
How many camshaft sensors are in a car?
four camshaft sensorsWhile the number can vary based on the age of your car, a new car should have four camshaft sensors, one for each camshaft. A camshaft sensor determines the exact position of your engine's camshaft, helping your car keep your engine's combustion running smoothly.
1. Disconnect The Battery
Disconnect the negative terminal or the black wire from the battery to keep yourself safe from any kind of shock.
2. Locate The Camshaft Position Sensor
The camshaft position sensor of the vehicle can be located at different places under the hood of the vehicle based on the make and model of the vehicle.
3. Disconnect & Unscrew The Camshaft Sensor
Disconnect the connector from the camshaft position sensor of the vehicle. After you are done disconnecting the connector from the camshaft position sensor, you must take the old sensor out of the place to replace it with a new one. For this, you will have to unscrew the nut bolt.
4. Remove The Camshaft Position Sensor
Once you have unscrewed the bolt, you have to twist the sensor to get it off its place.
5. Install The New Camshaft Position Sensor
Before you proceed to fix the new sensor, instead you must first oil the O-ring of the new camshaft position sensor, so you face no problem in placing the new sensor.
6. Connect The Connector To Camshaft Position Sensor
After placing the sensor, you have to connect the connector to the sensor as they were connected previously.
7. Reconnect The Battery Terminal
After you are done connecting the connector of the camshaft position sensor, the only thing left for you to do is to connect the terminal of the battery back. And you are done replacing the camshaft position sensor.
How to remove camshaft position sensor?
Twist gently to remove the camshaft position sensor. Visually inspect the sensor plug to make sure that it hasn’t been contaminated by a leak from another engine component. If it has, repair the leak before installing the new sensor. Check to make sure that the O-ring from the sensor hasn’t fallen into the hole in the engine block.
What happens when one or more cam sensors fail?
When one or more cam sensors fail, it can cause the engine to run rough or even make it difficult to start the vehicle. If the engine control module isn’t receiving a signal from one or more cam sensors, it will trigger a Check Engine light.
How long does it take for a check engine light to shut off?
Reconnect the negative battery cable, start the vehicle, and take it for a test drive. It could take ten to twenty minutes with the vehicle running for the Check Engine light to shut off.
How to remove air filter housing?
Do It Right: If you decide to remove the air filter housing, you can do so by unsnapping the spring clips from the air filter housing cover, loosening the hose clamp and removing the air inlet tube, and removing the air filter housing cover and air filter. Remove the air inlet above the radiator support by pulling out at the base, disconnecting from the air filter housing, and pulling up on the housing firmly.
How to find a faulty CMP sensor?
The DTC (s) can be retrieved by connecting a scan tool or code reader to the vehicle’s onboard diagnostic port underneath the dashboard.
What is the purpose of camshafts?
The camshafts open and close a series of valves that allow air (and fuel, in the case of port injection) into the engine and exhaust gases out.
Why is my CMP sensor bad?
Because the data from the CMP sensor (s) is often used as an input for everything from fuel injector timing to VVT operation, a bad sensor can potentially lead to a variety of engine performance problems. Examples include misfiring, rough running, lack of acceleration, and stalling. Vehicle Refuses to Start.
How many wires does a CMP sensor have?
It’s important to know what type of sensor your car has. You can distinguish between the two types of sensors by noting that magnetic CMP sensors typically have two wires, whereas Hall effect sensors usually have three wires. Consult a repair manual or repair database if you don’t know what type of sensor your car has.
How many camshafts are there in an engine?
Every internal combustion engine has a crankshaft and one or more camshafts (the number of camshafts depends on the engine’s design). The camshafts open and close a series of valves that allow air (and fuel, in the case of port injection) into the engine and exhaust gases out. One or more camshaft position sensors measure the speed and position ...
What are some examples of bad CMP sensors?
Examples include misfiring, rough running, lack of acceleration, and stalling.
What does a PCM use to check engine timing?
If the engine is equipped with VVT, the PCM will also use the CMP signal (s) when calculating valve timing. Depending on the vehicle, the module may also use the CMP signal (s) to monitor the engine for misfires and calculate other parameters. The Top 3 Symptoms of a Bad Cam Position Sensor.
How to remove camshaft sensor 302?
Once you do, make sure to disconnect the current sensor’s electrical connector or plug. You just have to press and pull on the tab quickly. There will be bolts that are connected to the sensor. Take your ratchet and a socket and proceed to remove the bolts. You can then easily pull the sensor off.
Why is my camshaft position sensor not working?
There are various problems that could have caused the camshaft position sensor to fail or get damaged. Some of those causes could most likely be bad wiring, overheating, crank walks, pollution or impurities in the camshaft, damage to the belt, car accidents or collisions that happened before, and many more. If these problems have occurred, then you know it is time to remove and replace it.
Can you fix camshaft position sensor by yourself?
It won’t be very useful for you to try and fix the sensor by yourself. The only action for you to take is to replace it. Now knowing how to replace camshaft position sensors aren’t an easy task. Having both the materials and knowledge is vital for you to carry out this task. We will help you know exactly what to do for this now.
What to do if you replace camshaft sensor but still get code?
As you learned, if you have replaced camshaft position sensor but still get a code, there are simple ways to detect and resolve the problem. All you have to do is make sure that the wiring and connectors are secure, not open, not grounded, and not loose.
What to do after removing crankshaft position sensor?
If all is good and there is no misalignment, place the crankshaft position sensor back in its place.
What is the camshaft sensor?
If you didn’t know already, the camshaft sensor is responsible for recording the speed and position of the camshaft when it rotates, as well as for synchronizing the ignition and firing of the coils.
What are the two modules that use camshaft sensors?
Now, there are different modules inside the car that make use of the camshaft sensor. The Engine Control Module and the Power-train Control Module or PCM are two such users of the sensor.
How to check if fuse box is P0340?
Open the hood of the car. Locate the relay center as well as the fuse box. Now, check them for disconnected or loose wires. One important thing that you should keep in mind while checking the fuse box, is that there should be no melted plastic present anywhere. This can lead to a fire hazard and is often responsible for the P0340 code.
Can you replace a CKP sensor yourself?
For the CKP sensor, replacing that would require a lot of technical skills that only car mechanics can boast of. Trying to run this test for the CKP sensor yourself at home can be costly. So you can take your car to professional service centers.
Can you repair a camshaft sensor?
And as for the replacement, if replacing the camshaft sensor still gives you codes, you should repair the camshaft position sensor, as well as the ECM and PCM. While you can do the checking by yourself, it is always better to take the bigger steps of resetting and fixing by a professional who has access to the right diagnostic tools and advanced scanners to stop and erase the codes permanently for you.
