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5 Indications that Your Transmission Fluid Could Be Contaminated

Kenny’s Transmission • Oct 13, 2024

Clean transmission fluid is essential for enabling smooth gear shifts and optimal performance. Contaminated transmission fluid can lead to costly repairs and performance issues, making it important to replace it ASAP. At Kenny’s Transmission, we provide top-quality transmission service in Greenwood, IN. Our local transmission mechanics can expertly handle fluid-related issues. Here are five signs that your transmission fluid may be contaminated:


Discolored Transmission Fluid

Healthy transmission fluid is typically a bright red color. If you notice the fluid has turned dark brown or black, this is a strong indication that it's contaminated. Darkening can occur due to debris or sludge buildup within the transmission system. Regularly checking the color of the fluid will help you spot contamination early.


Burnt Smell

Transmission fluid should have a slightly sweet smell. If you detect a burnt odor, it may indicate overheating and contamination. The heat breaks down the fluid's protective properties, leading to poor lubrication and increased wear on transmission components. A burnt smell is a red flag that should be addressed immediately.


Strange Noises During Shifting

Contaminated transmission fluid can hinder the smooth operation of the transmission, leading to unusual noises such as grinding, whining, or clunking when shifting gears. If you're hearing strange sounds, it's crucial to have your transmission inspected and the fluid replaced if necessary.


Delayed or Slipping Gear Shifts

If your vehicle hesitates when shifting gears or slips out of gear unexpectedly, contaminated transmission fluid may be to blame. Dirt and debris in the fluid can cause insufficient hydraulic pressure, resulting in delayed or slipping gear shifts. This can put additional strain on the transmission and increase the risk of more significant damage.


Transmission Overheating

Overheating is a common consequence of contaminated fluid, as the fluid loses its ability to dissipate heat effectively. If your vehicle’s transmission is running hotter than normal, it could be due to the presence of contaminants that reduce lubrication and increase friction. This issue can lead to severe transmission damage if left unaddressed.


Transmission Service in Greenwood, IN

For transmission service in Greenwood, IN and the surrounding area, contact Kenny’s Transmission at (317) 762-0389. Our nearby transmission mechanics can expertly address your vehicle’s transmission needs. Feel free to give us a call to schedule an appointment!

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