* Fluid stains or puddles under the car: Check the area underneath where the transmission is located. Look for reddish-brown fluid (transmission fluid).
* Low transmission fluid level: Check your transmission fluid level using the dipstick (if equipped) and compare it to the "full" mark. Low fluid strongly suggests a leak.
* Burning smell: A burning smell could indicate a leak that's causing the fluid to overheat.
* Slipping or rough shifting: While not always directly caused by a gasket leak, low transmission fluid (often from a leak) can cause transmission problems.
In short: Don't automatically assume you need a new gasket. Inspect your car for the signs of a leak first. If you find evidence of a leak, then you'll need a mechanic to diagnose the precise cause and determine whether the gasket needs replacing or if it's a more serious issue. A simple leak might just require a new gasket, but a large or persistent leak could mean other problems within the transmission.
