My Speed Sensor is not working-

asked by on

IT ON THE diagnostic machine.THE CODE CAME UP AS A SPEED SENSOR OUT. SO I REPLACED IT. THE CAR WAS BdACK TO NORMAL WHEN I GOT TO WORK IT WAS DOING THE SAME THING IT WAS DOING BE FOR I REPLACED THE PIECE.SO I TOOK IT BACK TO THE MECHANIC AND I PURCHASED ANOTHER SPEED SENSOR.NOW. MY CAR IS BACK TO NORMAL. WHAT WOULD MAKE A BRAND NEW SPEED SENSOR CRACK? WHEN THE MECHANIC TOOK OUT THE NEW PART HE PUT IN TWO DAYS BE FOR WAS CRACKED.

My car has 190000 miles.
My car has an automatic transmission.

Sensors are made of plastic and plastic doesn’t like to be warmed and cooled. Which is exactly what is happening you your car everyday. Normally, plastics will last a 100,000 miles or so. With a new sensor, it is not out of the ordinary for there to be a manufacturing flaw that leads to premature failure due to the previously mentioned warming and cooling effect. This is known in the industry as heat cycling.

Additionally, there may have been a hair line crack from the get go that simply made it fail prematurely. Hopefully the mechanic warrantied the part and labor for you. Any reputable shop should do so under such a circumstance. If it fails prematurely again, the mounting of the sensor needs to be inspected closely. Without seeing the nature of the failure, I can’t offer much else. A picture is worth a thousand words so to speak.

If you continue to have problems with your speed sensor and would like to try us out, I recommend the following inspection; Speed sensor replacement to get it back working again.

Good luck!

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Replaced the air conditioning line twice due to rust

Hello. I would suggest that you get the A/C lines replaced again. Next time the A/C is recharged make sure they completely flush the system by adding fluid back into it, as crazy as it sounds. It's possible to flush it...

Warning lights come on after battery replacement

Hello. It sounds like the PCM (powertrain control module) and the BCM (body control module) have malfunctioned because of a shortage in the battery system. This could have happened when the battery failed, was removed, or installed. One explanation for...

Front passenger tire caved in.

Hello. If the front wheel caved in then it may be possible that the wheel bearing that was freshly installed may have come undone or let go. This can happen if the wheel bearing was not installed correctly. The same...

Related articles

How Long Does a Distributor O Ring Last?
The The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then ignites the fuel and air mixture in the...
Rules of the Road For Iowa Drivers
Driving Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in your own state, that does not mean you know them in all...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.