One of the most important factors is the age and mileage of the transmission. Automatic transmissions often fail between 80,000 and 150,000 miles. Manual transmissions can fail even sooner than that, especially when routine maintenance is neglected.

Is it worth it to replace a transmission?

Transmissions are one of the most expensive repairs that you can make on a vehicle. If the car is relatively new and in great condition other than the transmission, then it is probably worth fixing. Other reasons to fix the transmission of a vehicle include you having a vintage car that is worth the money to fix.

How long do transmissions last on average?

Time and mileage vary between car drivers and how they use or abuse their transmissions. Still, typical automatic transmissions last around 150,00 to 200,000 miles or approximately 7 years. Cases exist in both extremes; extreme longevity and early failure.

Clunking, humming or whining sounds are signs of automatic transmission problems. Faulty manual transmissions will also give off loud machinelike sounds that seem to come out of nowhere. A clunking noise when you shift gears is a telltale transmission situation. Have a mechanic look it over.