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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 to Replace an Air Cleaner Temperature Sensor
The air cleaner temperature sensor allows the computer to adjust engine timing and air/fuel ratio. A rough idle or "engine lag" are signs of failure.
How to Replace a Cylinder Head Coolant Temperature Sensor
Signs of coolant temperature sensor failures include sluggish acceleration, hard starting, and a Check Engine or Service Engine Soon Light.
How to Replace an Ambient Temperature Sensor
The ambient temperature sensor monitors the car's temperature inside and out. This sensor allows the AC to maintain comfortable cabin temperatures.
How to Replace a Fuel Gauge Sender
The fuel gauge has a sender that goes bad when it says that the fuel level is different lower or higher than it actually is.
How to Replace a Low Oil Level Sensor
A low oil light sensor allows you to know when your oil levels are low. A bad sensor won't be able to alert you, causing wear and damage as you drive.
How to Replace a Brake Booster Vacuum Sensor
The brake booster vacuum pressure sensor is a vital part of power brake operation. A Check Engine Light or a hard brake pedal are signs of failure.
How to Replace an Evaporator Temperature Sensor (Switch)
The air conditioning system has an evaporator temperature sensor that fails when there is no cold air or the air conditioning is inconsistent.
What Does the Rain and Light Sensor Warning Light Mean?
The rain and light sensor warning light indicates when there is an issue with the sensor system. It will remain deactivated until fixed.
How to Replace a Coolant Level Sensor
Coolant level sensors are faulty if the coolant level sensor light stays on extensively or the engine overheats without the light coming on.
How to Replace an EVP Position Sensor
The EGR valve is monitored by a valve position sensor. This sensor helps your car's EGR system to run more efficiently and better control emissions.
How to Replace an Oil Pressure Sensor on Most Cars
Oil pressure sensors fail if the sensor light blinks or stays on constantly when the pressure if acceptable or when the gauge is at zero.
How to Replace a Fuel Rail Sensor
The fuel system has a fuel rail sensor which fails when the engine operates erratically, has difficulty starting, or the Check Engine Light comes on.
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.
How to Replace an Injector Control Pressure Sensor
Diesel engines have an injector control pressure sensor that fails when there is hard starting, decreased power, or an illuminated Check Engine Light.
How to Replace a Manifold Temperature Sensor
Signs of a failing manifold temperature sensor include rough idling and a rough running engine, and may result in a failed emissions test.
How to Replace a Refrigerant Pressure Sensor
The air conditioning system has a refrigerant pressure sensor that goes bad when the air conditioning does not work or only works intermittently.
How to Replace the Speedometer Sensor on Most Cars
The speedometer has a sensor that fails if the speedometer or cruise control do not work, the Check Engine Light comes on, or the vehicle loses power.
How to Replace a Washer Fluid Level Switch
The washer fluid level switch fails when the Windshield Fluid Warning Light stays illuminated or there are unusual noises coming from the washer pump.
How to Replace a Steering Angle Sensor
A steering angle sensor fails if the Traction Control Light illuminates, the steering wheel feels loose, or the vehicle drives differently.

Related questions

My car keeps giving misfire cylinder 5
Hello - when you changed the plug and coil, was there oil in the spark plug recess? If so, the valve cover is leaking oil onto that plug and coil, and should be replaced. The oil can enable a misfire...
Jerking when accelerating (after slowing down).
Hi there. From my experience with this vehicle the issue is almost always a failure in the throttle body. It is very common for the throttle body to have an intermittent failure and for it to run like this. Most...
Crankshaft sensor replacement - 2014 Toyota Avalon
Hi - the crank position sensor on the V6s is located at the "nose" (passenger side) of the engine, way down low. Rather restricted access. Will require safely raising and supporting the car, and access from underneath the engine. If...
Why would i keep getting p0013 and p0023 codes when the truck isn't equipped with exhaust cams, it's not a 4 cam engine
Hello - this engine, although single overhead camshaft, does use variable cam timing, actuated by "cam torque", rather than engine oil pressure, to adjust exhaust valve timing (relative to the intake valves). This engine was introduced to Ford trucks in...
Throttle body or sensor issue
Hello, thanks for writing in. Your problem is likely the coolant temperature sensor, which communicates engine temp to the engine management computer (ECM) so that the proper amount of fuel can be injected. If it passes bad readings (too warm...
Crankshaft sensor - 2014 Toyota Avalon
Hi. A lot times if you type in the make and model and year of your car and "crankshaft sensor location" into a search engine, you will have some pictures on were the crankshaft sensor is located. You may have...
My car starts but only runs for 3 seconds before it shuts down
Hello - Is your Check Engine Light on? If so, you can check the trouble codes yourself to diagnose the problem, or you can have a mobile technician, such as one from YourMechanic, come by at your convenience and diagnose...
Cam shaft position sensor
Hi there. The camshaft position sensors are located on the front of your engine on the top under the engine cover. I usually do a complete inspection before replacing these because there are a number of reasons as to why...
Where is the Crankshaft Position Indicator on a 1998 Infiniti QX4?
The crankshaft position sensor is typically externally mounted on the engine near the crankshaft pulley. I would recommend checking near the crankshaft pulley for this answer. If you need help with the replacement of the crankshaft position sensor, I recommend...
replaced the engine temp sensor and now the cooling fans wont turn on
Hello there, a few common faults will cause your cooling fans to not work after the temperature sensor was replaced on your 2003 Subaru Impreza. If the problems started right after the repair was made the replacement coolant temperature sensor...
Black smoke and rich fuel the codes P0191 & P0452 and short trim bank 1 & 2. Both at -28.9
Hello. You have 2 separate problems here. The P0191 (fuel rail pressure sensor circuit problem) may just be a symptom - it is reporting suspect fuel pressure on the rail. The fuel pressure on the rail is controlled by the...
Cant get my car out of limp mode or "fail safe mode"
The reason "limp mode" has become "unbypassable" is due to the existing codes. The ECT failure, if it exists, may alone account for that because an engine coolant temperature sensor is essentially a master sensor - the value of which...
Burned up DPFE sensor. What caused this problem?
Hi there. The DPFE sensor is actually a common problem on Ford vehicles. Replacing the DPFE sensor should resolve the issue you are experiencing. If you are in doubt about this repair, I would recommend enlisting the assistance of a...
Reduced engine power
Hi. The first task is to extract problem codes. Whether the Check Engine light is on or not. The most common source of the "reduced power" for these GM engines is either the wiring connector to the throttle body (connections...
Crank no start - 1997 Volkswagen Golf
Hello there. Many faults will cause your 1997 Volkswagen Golf to crank but not start. The most common fault is the battery. Once the battery has been load tested and ruled out, there are a few other likely faults, such...
Bank 1 is lean - 2001 Ford Mustang
As you know, this is caused by a lean fuel condition. This can be caused by a few different things, one of which is a dirty or failing mass air flow sensor, which you have already replaced. The other potential...
My DPFE sensor burned up. What do you think caused this and will it do a new one the same way?
Hi and thanks for contacting YourMechanic. The delta pressure feedback of EGR (DPFE) sensor was burned up for having too much back pressure on the engine. A plugged catalytic converter or a plugged exhaust muffler will cause the engine...
Why does my car have rough idle and lack of power only on warm days?
This problem may be caused by a coolant temperature sensor, idle air control valve, throttle position sensor, or O2 sensor that may be failing. Use a digital volt ohm meter (DVOM) to check resistance on all of the sensors. If...
Car starts and runs perfectly for 3-4 minutes then stalls and won't restart for several hours.
Hi there. From the description you have provided, your vehicle's P0335 code is not being corrected by replacing components. Assuming, the replacement components are correct by application and of OEM (original equipment manufacturer) quality. It could be, the crankshaft reluctor...
Camshaft position sensor error code P0343
Hello. The P0343 code indicates there is no signal from the passenger side cam position sensor (Bank 1 actually). Given you have changed the sensor, this would suggest a wiring or connector issue. Your mileage would also make me anxious...

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