Skip the auto shop - Our mechanics make house calls

Q: What does a vehicle speed sensor look like?

asked by on

What are the signs if that's what's wrong with my car? It hasn't been shifting between 1st and 2nd gear lately&when it's stalling before it shifts the speedometer doesn't move,but as soon as it shifts everything appears normal again. However the last 2 days my car didn't want to start. It was turning over but sounded like it was drained somewhat&I jz got the battery last yr. That may be another issue idk. But I'm very concerned about my transmission. I'm a minister who does outreach with the veterans,homeless,abused/neglected children&so forth&I am on a very limited income. I've already put more money into that car than I paid for it,but can't afford another one. Thank you for all of your advice&or suggestions. May God bless you.

My car has 150773 miles.

A: There may be a couple of things going on at...

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. A vehicle speed sensor can be a 2 or 3 wires sensor and is usually mounted near a rotating object like a wheel bearing or on the extension housing of the transmission. A technician with the proper equipment can hook up to the car and observe the data being offered to the engine control computer and determine where the issues are. A lack of signal may cause shifting errors if the vehicle depends on speed to determine when to shift. A no start may come from loss of fuel pressure from a failed fuel pump or no spark due to lack of maintenance of spark plugs or the engine control computer failing to send spark. Consider hiring an experienced technician like one from YourMechanic who can come out and asses the problem to offer a more personal diagnosis.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: My car wont start

Hello. If the engine will crank and not start then we would need to see if it is lacking spark, fuel, or compression. If it does not have a spark then the ignition system needs to be diagnosed. If it...

Q: My car is still running after turning it off.

Hi there. The noise that you are hearing is commonly known as 'Dieseling'. When this happens, check the ignition switch alignment and see that the switch is turned completely off. If the switch is turned off, then while the engine...

Q: Belt, pump, and gauge problems

Hello! There is likely an issue wth the oil pressure sensor causing the flashing Oil Light. I suggest having a technician test the sensor by the use of a multimeter. Also, be sure to have the oil level checked; a...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...