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speed sensors

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How to Replace an ABS Speed Sensor
The Anti-Lock Braking System uses speed sensors to make sure your wheels are synced when braking. Most modern cars are equipped with this sensor.
Symptoms of a Bad or Failing Transmission Speed Sensor
Common signs include harsh or improper shifting, cruise control not working, and the Check Engine Light coming 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 a Wheel Speed Sensor
A car wheel speed sensor helps control the anti-lock brake system by determining if a wheel is moving at a different speed than the other wheels.
How to Replace a Transmission Speed Sensor
Transmission speed sensors accurately calculate a car's road speed. If this sensor is faulty, a Check Engine Light will indicate the driver.

Related questions

Question
2001 Chevy Silverado 1500 will not shift out of first gear. If you press on the gas pedal and then let off, the transmission would shift.
Hi there. The transmission is not shifting for the transmission speed sensor could have failed. This is the reason why when the throttle is let off and then the transmission shifts gear. The speed sensor is not communicating to the...
Question
Car won't speed up past 30 Mph.
Billing question sent to CS for the cost to replace the battery, replace the vehicle speed sensor (VSS), and clear the engine light.
Question
Check engine light.
YourMechanic does diagnose and repair speedometer malfunctions. If you desire that this problem be diagnosed by a certified Mechanic, dispatched by YourMechanic right to your location, simply request a speedometer diagnostic and the responding mechanic will get this resolved for...
Question
AT light on
One of the most common causes for this light to come on is the transmission input speed sensor goes bad and the transmission module connector. If you have the system scanned you would get codes pertaining to the input speed...
Question
Appearance of ABS, skiddig and tyre pressure signage 2009 Volkswagon
Hi there - there are couple of problems that can generate the warning lights you describe. If one or more tires has low air pressure, the vehicle can sense slightly different rotational speeds for each wheel - causing these warnings....
Question
Speedometer sensor - 2002 Dodge Durango
Hi - the speedometer sensor for your Durango is electronic, and there are instrument panel sensors and wiring adjacent to the steering column. Check to be sure all connectors are re-seated, to their proper mates as well. If you would...
Question
Getting the code P0500. Changed both NC & NT sensors. Can't pull out the vehicle speed sensor (VSS).
Hi there. The code P0500 is in reference with the vehicle speed sensor. The possible causes that contribute for this code to appear are: The vehicle speed sensor (VSS) is not reading properly There is a broken or frayed...
Question
I have to fill my radiator and reserve tank almost every week.
Hi there. If the leaks to the cooling system are visible on the ground, then there is an external leak on the cooling system. Check all of the hose clamps to the radiator and water pump. Also, look to see...
Question
Speedometer and Odometer not working 2002 Mitsubishi Magna
Hello - the lack of speedometer and odometer function is most likely caused by a failure of the vehicle speed sensor (or the wiring to it). This sensor, and its wiring, would have to be tested with a voltmeter or...
Question
2008 Mazda 5 has codes P0661 and P0720
Input from the vehicle speed sensor (VSS) is used by the transmission control module (TCM) to calculate shift points, torque converter operation and other transmission functions. Code P0720 stands for Vehicle Speed Sensor circuit malfunction. Typically, this code indicates a...
Question
Gauges not working and car not shifting
Hello, and thank you for writing in. There are a few sensors that can effect both of these systems. The first one you should check is the transmission output speed sensor. You may also want to check the other speed...
Question
Speedometer/odometer quit working.
The speedometer is electronically controlled. Typically, there is a mini stepper (positioning) motor mounted on the instrument cluster PCB and it receives a signal from a speed sensor within the transmission. A wiring harness interconnects these components. The speed sensor...
Question
On my car, the transmission output speed sensor isn't responding at all. What do I need to do? I've scanned it with OBD scanner 2006 Hyundai Sonata
Hi there - excellent diagnostic work thus far! The next step is to determine if the output speed sensor is producing a signal at all, and if so, is it a valid signal, or is the wiring to the sensor...
Question
Over revving 2008 Ford
Hello - first task is to make sure the transmission fluid level is correct. Low fluid level or dirty fluid can cause shifting problems. A malfunctioning speed sensor in the transmission, or a failing throttle position sensor can cause the...
Question
Warning lights still on 2001 Pontiac Grand Am
Hi there - the next level of diagnostics are going to be required - specifically the ABS system. (Top level OBD II codes aren't enough here) I suspect you have a wheel speed sensor that is dirty or malfunctioning. These...
Question
I have a SS impala 2009. My service traction is coming on but some times I hear a roaring noise real minor and light.
Hi there. Check the wheel speed sensors and see if any of them have broke off and now is rubbing on the tires. The wheel speed sensor is designed to register the speed of each individual wheel and let the...
Question
I have replaced the rear wheel bearings and subsequent to that the speedometer stops working. what might be the problem?
Hello - you don't mention your year/make/model, which would be helpful. Most vehicles now use electronic sensors for the speedometer function. Some of these sensors are in the transmission, some use the speed sensors in the wheel hub for speedometer,...
Question
Good evening from Ghana in west Africa, please help me with this,i want to the location of vehicle output speed sensor on benz ml3
Hello, thank you for writing in. An output speed sensor on your vehicle would likely trigger a P0720 engine code. If this sounds like the correct sensor, then you are looking at the speed sensor located on the transmission's electrical...
Question
I replaced the output shaft sensor. Do I need to reset the code?
Try removing the battery cables and letting the computer sit for about 1 minute and then hook up the cables or if you have a scanner that can erase the codes. This will clear the engine light and codes to...
Question
Where is the vehicle speed sensor located on a 2004 Golf GLS 4 door hatchback 2.0?
The vehicle speed sensor is mounted on the transaxle housing, usually on the differential. It can be very difficult to see and you will probably have to have the car well in the air to get to it. If by...

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