Clean transmission fluid plays an essential role in keeping the transmission system running smoothly. It lubricates moving parts, cools the system, and ensures gears shift correctly. Over time, however, transmission fluid can become contaminated with debris, dirt, or metal shavings. When that happens, the transmission may begin to show warning signs that shouldn’t be ignored. Driving with contaminated fluid can lead to expensive problems. At Hirst Transmission Specialists, we can expertly handle your transmission fluid issues. Here are five indications that your transmission fluid may be contaminated.

Dark or Dirty Fluid

Fresh transmission fluid is typically bright red. As it becomes contaminated, it turns darker, often appearing brown or even blackish. If you check the fluid and notice it looks dirty or smells burnt, that’s a strong indication that it’s no longer protecting the transmission effectively. Dirty fluid means contaminants are circulating through the system, wearing down internal parts.

Slipping Gears

One of the most noticeable symptoms of contaminated transmission fluid is gear slipping. When the fluid loses its ability to provide proper lubrication and pressure, the transmission may struggle to stay in gear. You might feel the vehicle suddenly change gears on its own, hesitate when accelerating, or fail to engage properly. 

Delayed or Rough Shifting

If your transmission fluid is contaminated, gear changes may not feel as smooth as they should. You might notice delays when shifting into drive or reverse, or the gears may clunk and jerk instead of transitioning seamlessly. Contaminated fluid prevents the hydraulic system from operating correctly, which can make gear changes harsh.

Overheating Transmission

Contaminated transmission fluid loses its ability to cool the transmission system effectively. Without proper cooling, the transmission can overheat, leading to significant internal damage. A distinct burning smell is a common sign of transmission overheating. Once a transmission overheats, repairs quickly become costly, making it crucial to address the fluid issue right away.

Unusual Noises While Driving

Grinding, whining, or clunking sounds can potentially be traced back to fluid that’s no longer clean and effective. These noises often get worse the longer you drive, signaling that the system is struggling under the strain of inadequate lubrication.

Transmission Service in Pensacola, FL

When you need transmission service in Pensacola and the surrounding area, contact Hirst Transmission Specialists at (850) 478-3395. Feel free to give us a call to schedule an appointment!