The oil light coming on when you brake in your Hyundai Sonata is likely due to a low oil pressure situation. This usually happens because the oil pump is unable to maintain adequate pressure when the engine is under stress, such as during braking.
Here are some possible causes:
- Low Oil Level: The most common cause is simply not having enough oil in the engine. When you brake, the engine slows down, and the oil level drops, leading to a low pressure reading.
- Oil Pump Failure: A faulty oil pump may not be able to move oil efficiently, especially under strain.
- Clogged Oil Filter: A clogged oil filter can restrict oil flow, leading to low pressure.
- Oil Viscosity: If the oil is too thin or too thick for the temperature, it can cause pressure issues.
- Oil Leak: A leak in the engine or oil lines can result in a low oil level and pressure.
Note: It's crucial to address this issue immediately. Driving with low oil pressure can cause serious damage to your engine.
Recommendations:
- Check the Oil Level: First, check the oil level using the dipstick. If it's low, add the appropriate type of oil.
- Consult a Mechanic: If the oil level is normal, or adding oil doesn't resolve the issue, you should consult a qualified mechanic.