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speed sensors

Related articles

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.
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
Transmission was slipping. Could it be the VSS?
Hi there. For the speedometer to be malfunctioning, either the vehicle speed sensor (VSS) could be loosing signal or the gauge has a bad resister. Now, as far as the transmission slipping, check the transmission fluid level. If the fluid...
Question
Transmission does not shift properly
This may be a sign of a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer activates a transmission solenoid, which directs transmission...
Question
ABS, Rough shifting
Hello. The only speed sensor located in the rear of the vehicle will be located in the differential housing. This may be the sensor that requires attention. If our transmission is experiencing shifting problems in first gear, and your speedometer...
Question
Car rpms were very high before it shifted gears. Every time I stop it happens again 2006 Chevy Cobalt
Hello - there are two possible causes of the "high RPM before shifting" behavior you are experiencing. The engines throttle position sensor, which communicates "power request" to the transmission as well as to the engine, may be worn out and...
Question
Speedometer stops on 40 mph until driving for 20 minutes and then regains correct speed on the speedometer with no other noticeable issues.
Hi there. The issue with your speedometer not working properly is the transmission output shaft speed sensor has a faulty pickup or broken wire inside it. The speed sensor has a magnet that reads between teeth on a gear within...
Question
Transmission shifting
The transmission control module has various sensors such as vehicle speed sensors, wheel speed sensors, throttle position sensors, turbine speed sensor, and transmission fluid temperature sensors that all direct information to it in order for it to perform it’s function....
Question
ABS modulator and brakes activate under 3 mph.
Hi there. If all of the components to the brake system has been replaced for the ABS system, then the transmission output shaft speed sensor could have failed. This speed sensor tells the driver what speed the vehicle is moving...
Question
What do i do if the ABS indicator light and the Stability Control light both stay on?
The ABS and AdvanceTrac systems share the same sensors and can turn on the service lights for both systems at the same time if there is a problem in one of the systems. When the ABS or AdvanceTrac light is...
Question
Abs and traction control light stays on
Hello. Thank you for writing in. When it comes to the readings you hace recieved, chances are the one odd sensor out is likely the culprit. It also depends on what setting your ohm meter is set to. You are...
Question
What does a vehicle speed sensor look like?
There may be a couple of things going on at the same time here. Is the Check Engine Light on? A vehicle speed sensor problem may illuminate the Check Engine Light if the lack of signal is causing shifting errors....
Question
My car gets stuck in low gear when decelerating
Hi and thanks for contacting YourMechanic. It sounds like that the low speed shift sensor has failed in the transmission. This is common occurrence to the transmissions in the Chrysler vehicles. I recommend replacing the low speed shift sensor and...
Question
Location for speed sensor?
Hello. It sounds like your transmission is in "limp mode", causing the 2nd gear start operation. If you can get the problem codes that are setting the Check Engine light, it will help in your diagnosis considerably! Most auto...
Question
My car won't shift out of 1st gear. I replaced the engine with one from a Saturn, now it won't shift up.
The vehicle speed sensor (VSS) has failed or lost power to the transmission and computer system. The computer needs to recognize the road speed to perform an up shift. Check the VSS to make sure the harness is plugged in...
Question
ABS, traction control and 4wd lights come on, brakes dragging? 2008 Jeep Patriot
Hello - mostly likely, a malfunctioning wheel speed sensor or other ABS sensor is causing these symptoms. ABS, traction control and auto-engaging 4WD are integrated systems, and share sensors. A malfunction in one system can bleed over to the other...
Question
Where can I find the speed sensor for a 2004 Jeep Grand Cherokee
Hello - it sounds like your transmission is in "limp mode" which gives you a 2nd gear start operation. Get the problem codes that are setting the Check Engine Light - this will help diagnosis considerably! Most auto parts stores...
Question
My jeep won't go over 30 mph. Where is the speed sensor located?
Hello and thank you for contacting Your Mechanic. There are two speed sensors on your jeep's transmission. There is an input speed sensor and an output speed sensor. The input speed sensor tells the computer what speed is the engine...
Question
I had to change output the speed sensor, but my car still drive in 5 high. What do I need to do?
Hi there. Since you have replaced the speed sensor and your vehicle is still giving you the engine light code P0720 for the speed sensor circuit malfunction, then you would need to check the circuits from the speed sensor to...
Question
Transmission
An appropriate diagnostic to resolve your issue is a failure to shift inspection. Of course, first check your transmission's fluid level and condition. A really low fluid level can cause shift difficulties. Typically, if a transmission fails to automatically shift...
Question
What caused my wheel speed sensor failure?
A wheel speed sensor is the most common failure in the ABS system. The reason your engine management and traction control light are also on is because those systems "borrow" wheel speed information from the ABS system. The reason the...
Question
Speedometer stops working
Depending on the type of vehicle you have and how the speedometer is actuated is going to be different. You may have a speed sensor in the transmission and run off of the out put shaft or a sensor in...

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