How do I know if I overfilled my transmission fluid?

What are the symptoms of too much transmission fluid?

Transmission fluid will become foamy if there is too much fluid. Excessive fluid prohibits proper lubrication and cooling and slows the rotating crankshaft, similar to the effect of running through water.

Is it OK to slightly overfill transmission fluid?

If it’s only slightly over, say less then a pint, it will be fine. Most auto makers know this is going to happen, so there is a margin for error. If it’s any more than that, I’d recommend draining some out or it may not function properly and could cause damage.

Will an overfilled transmission leak?

Overfilling the transmission fluid will not cause seals to break, but they may leak. The transmission is vented so that pressure won’t build in the unpressurized areas. Transmission fluid can leak out these vents if it is too high. The seals higher in the transmission may also leak, but these seals are not pressurized.

Can too much transmission fluid cause hard shifting?

If you overfill it, the transmission will experience hard shifting and slippage. Another consequence of overfilling your transmission is that it will cause the fluid to lose its lubricating properties. It could also lead to the entire system blowing up and not functioning.

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Can I check my transmission fluid?

Check the fluid. Dip the tip of your index finger into the fluid on the dipstick and rub the fluid between your finger and the tip of your thumb. The transmission fluid on the dipstick should be pinkish and almost clear. If it looks or smells burnt or has particles in it, have a mechanic drain and change the fluid.

Do you check your transmission fluid when it’s hot or cold?

The car must be warm when you check transmission fluid. Step 2: If you have an inline engine, look behind your oil dipstick, toward your windshield, to locate the transmission fluid dipstick. Step 3: If you have a front-wheel drive vehicle, look to the right of your oil.