Skip the auto shop - Our mechanics make house calls
  1. Home
  2. Articles
  3. How Long Does a Speed Control Assembly Last?

How Long Does a Speed Control Assembly Last?

speed control assembly

Using the gas pedal allows you to speed up and control the car on the road, but it can be a chore when driving long distances on relatively flat roads with little to no other traffic. It can lead to fatigue, leg cramps and more. Speed control (also known as cruise control) is a convenience feature built into many of today’s cars that allows you to bypass manually using the gas pedal in these circumstances.

Your car’s speed control system allows you to set a speed and then have the computer maintain it. You can also speed up and slow down without pressing the gas or brake – you just need to use the cruise control selector to tell the computer what you want to do. You can even resume a previous speed if you had to turn off cruise control because of traffic. It also improves fuel economy, as the car’s computer is much more efficient than a human driver.

The key to the system is the speed control assembly. In new cars, it’s a computerized component that operates all aspects of your cruise control system. Like all other electronics, the speed control assembly is subject to wear and tear. One saving grace is that it’s only used when you turn on the cruise control system and set a speed. However, the more frequently you use the system, the more wear and tear it will sustain. In theory, it should last for the life of the vehicle, but that doesn’t always happen.

Older cars don’t use computers. They use a vacuum system and a servo/cable assembly to control cruise functions.

If your car’s speed control assembly is beginning to fail, you’ll notice a few telltale symptoms whether you have a newer computerized system or an older, vacuum operated model. These include:

  • Vehicle drops out of set speed for no reason (note that some cars are designed to drop out of cruise after slowing to a specific speed)

  • Cruise control does not work at all

  • The car won’t resume a previously set speed (note that some cars are designed not to resume a previous speed after slowing to a certain point)

If you’re experiencing any problems with your cruise control system, YourMechanic can help. One of our expert mobile mechanics can come to your location, inspect your vehicle and replace your speed control assembly if needed.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

Symptoms of a Bad or Failing Flexible Clutch Hose
Common signs include difficulty shifting, low clutch fluid, and feeling no resistance at the clutch pedal.
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP)...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...

Related questions

Q: How do I use speed control?

Cruise Control comes in handy when you are driving long distances in your truck. Cruise Control will keep your speed level without you having to keep your foot on the pedal. To use Speed Control. Accelerate to the speed...

Q: Digital dashboard not working

Hello! That is a common problem that unfortunately usually requires a replacement of the instrument cluster. The clusters will short out internally over time, due to faulty solder points. The solder points will usually fail due to the heat those...

Q: Q: My bus is not starting.

It sounds like you may have a problem with your key. If the key is excessively worn it will not be able to unlock the ignition cylinder so you can turn the key. I would ask for help from one...