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Transmission Solenoids – What You Need To Know

With “transmission” being in our name, it comes as no surprise that the Quic Transmission Automotive team is experienced with caring for manual and automatic transmissions. Our goal is to provide quality service to drivers across the community and to pass on some of our knowledge to help ensure that everyone is safe and well informed when it comes to caring for their vehicles. In this blog, we wanted to share information to help those in our community who drive vehicles with automatic transmissions: transmission solenoids. An important part of a car with an automatic transmission, when transmission solenoids start to malfunction, it can spell serious trouble.

You may be wondering, what exactly are transmission solenoids? An important part of any vehicle with an automatic transmission, transmission solenoids is electro-hydraulic valves that control the flow of transmission fluid. The speed sensors around your vehicle’s engine help activate the solenoids and allow the valves to open or close so they can regulate the fluid’s flow. This differs from a manual transmission as in those types of vehicles, it’s the clutch that controls when the gears shift and how the valves behave. 

As with any other mechanical component in your vehicle, transmission solenoids can wear out over time and need preventative maintenance to help keep them working effectively. But what are some of the signs that your solenoids are failing? 

The most typical signs of that your solenoids are failing will be:

  • A delay in shifting – This could last as little as few seconds or up to a minute, but during this period it will feel as if your car is in neutral and cannot accelerate. 
  • Being unable to downshift – Normally your transmission will automatically downshift as your vehicle slows down and then change to first gear once you’ve stopped. However, if your solenoids are failing, your transmission may not be able to downshift or do so erratically. 
  • A rough, choppy feeling when you shift gears – If your transmission solenoids are failing, you might find your gearbox skipping up or down, shifting back and forth between gears or even getting stuck in one gear and unable to shift.

If you’ve been noticing any of these symptoms in your automatic transmission, then it might be time to get your transmission solenoids repaired or even replaced. Depending on the make and model of your vehicle you may be able to get a single faulty solenoid replaced, but if the solenoids come in multiple unit packs, which require that the entire pack be replaced when issues arise. 

Be sure to pay close attention to your transmission and if you’ve been noticing issues on how your manual or automatic transmission shifts or accelerates, be sure to call Quic Transmission Automotive and schedule service with our team today. 

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