Seven Signs of a Bad Transmission
Seven Signs of a Bad Transmission
At AutoNation, we know transmissions are complex systems that require proper maintenance to function correctly. When transmission problems start, they often give clear warning signs that shouldn't be ignored. Catching these issues early can save thousands in repair costs down the road.
7. Delayed or Rough Shifting
When your transmission hesitates or shifts roughly between gears, it's time for inspection. A properly functioning automatic transmission should change gears smoothly and quickly. If you notice a delay or feel a harsh engagement when shifting from park to drive, your transmission might need service.
6. Burning Smell
A burning odor often indicates overheating transmission fluid. This can happen when fluid levels are low or when the fluid has degraded. Regular checks of your transmission filter and fluid can prevent this issue. The smell might become more noticeable after driving in heavy traffic or climbing hills.
5. Strange Noises in Neutral
Unusual sounds when your vehicle is in neutral could signal transmission problems. These noises might include bumping, clicking, or humming. In manual transmissions, issues with the clutch assembly often cause these sounds. The noise typically increases with engine speed.
4. Transmission Fluid Leaks
Red or brown spots under your parked vehicle often indicate transmission fluid leaks. Fresh transmission fluid is bright red and has a sweet smell. If the fluid appears dark or smells burnt, it needs immediate replacement. Regular fluid checks can catch leaks before they cause major damage.
3. Check Engine Light
Modern vehicles use sensors to monitor transmission performance. When these sensors detect issues, they trigger the check engine light. While not every check engine light indicates transmission trouble, it's important to have the code read promptly to determine the cause.
2. Grinding or Shaking
Transmission problems often cause unusual vibrations or grinding sensations. In automatic transmissions, you might feel shaking during gear changes. Manual transmission vehicles might grind when shifting gears. These symptoms typically worsen as the problem progresses.
1. Slipping Gears
If your vehicle suddenly shifts into another gear without warning, or if the engine revs without increasing speed, your transmission might be slipping. This dangerous condition requires immediate attention as it can lead to complete transmission failure.
Prevention and Maintenance
Regular transmission maintenance can prevent many of these issues. This includes checking fluid levels, changing filters, and addressing small problems before they become major repairs. Most manufacturers recommend transmission service every 30,000 to 60,000 miles, depending on driving conditions.
AutoNation, as one of the country's largest suppliers of transmission parts, stocks everything from complete assemblies to individual components. Our extensive inventory ensures you'll find the exact parts needed for your specific make and model.
Get back on the road quickly with genuine components from AutoNation.