Your vehicle’s automatic transmission is responsible for delivering smooth, reliable shifts that allow your engine and wheels to work together efficiently. When something goes wrong, the transmission often sends out warning signs long before a complete failure occurs. Paying attention to these early indications can save you from more expensive repairs and breakdowns that leave you stranded. At Hye-Tech Auto, our local mechanics provide expert automatic transmission repair in the greater Covina, CA area. Here are four common signs that your automatic transmission may be in trouble and needs professional attention.

Slipping Gears/Unpredictable Shifting

One of the most noticeable signs of transmission trouble is slipping gears. If your vehicle unexpectedly changes gears, struggles to stay in gear, or feels like it’s losing power during acceleration, your transmission may be slipping. This issue is often caused by worn-out clutch components, low fluid levels, or internal mechanical problems. Even minor slipping should be taken seriously—ignoring it could lead to complete transmission failure.

Delayed Engagement When Shifting

If you shift from Park to Drive or Reverse and notice a delay before the car actually starts moving, that hesitation is a red flag. Delayed engagement commonly signals internal wear or low transmission fluid. This type of hesitation often worsens over time, and addressing it early can prevent much more costly internal damage.

Grinding, Whining, or Unusual Noises

Healthy transmissions operate smoothly and quietly. If you begin hearing whining, humming, clunking, or grinding sounds, you may be dealing with worn gears, failing bearings, or fluid problems. Transmission fluid lubricates and cools internal parts—when it’s old, contaminated, or running low, components start to wear quickly. Any new or unusual noise during shifting warrants an immediate inspection.

Leaking Transmission Fluid

Transmission fluid leaks are both common and serious. Automatic transmissions depend on fluid to operate, and a low fluid level can cause overheating, slipping, and severe internal damage. Transmission fluid is usually red or pinkish, though it can darken to brown as it ages. If you notice puddles or spots under your parked vehicle, have it evaluated right away. Fixing a small leak is far easier and cheaper than repairing the damage caused by driving with low fluid.

Transmission Repair in Covina, CA

For expert auto repair in Covina and the surrounding area, contact Hye-Tech Auto at 626-332-5452. Feel free to give us a call to make an appointment!