Check the sump pan Car Components Transmission 

The way of check and change automatic transmission fluid

Automatic transmission needs little maintenance other than regular checking of the transmission fluid level. Most failures are caused by a level drop through evaporation or leakage (see checking the transmission fluid level, drain and injection), or because the engine is idling at such a speed that is incorrect when you check the level. Check in the car handbook which particular fluid should be used for your car. Topping up with the wrong fluid can damage the transmission. (In some smaller automatic gearboxes, such as those used in BL cars, the…

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