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What does it mean when the car shakes and you start to smell something burning check engine light comes on?

Shaking, burning smell, and check engine light indicate a serious issue that requires immediate attention from a qualified mechanic. Here are some potential causes and actions you should take:

1. Engine Misfire:

>If the car is shaking and you smell something burning, the engine might be misfiring. Misfiring happens when the spark plugs or ignition coils are not functioning correctly. This can cause incomplete combustion, which leads to rough running and the smell of unburned fuel.

* Action: Have the car towed to a mechanic as driving it may cause further damage. The mechanic will diagnose the cause of the misfire and replace any faulty parts.

2. Transmission Problems:

>A burning smell and shaking can also indicate transmission problems. Transmission fluid may be low or contaminated, leading to overheating and the burning smell.

* Action: Check the transmission fluid level and color. If the fluid is dark, burnt-smelling, or low, have the car towed to a mechanic. Do not drive the car to avoid further damage to the transmission.

3. Brake Issues:

>A burning smell can be caused by overheating brakes. If you notice the smell along with shaking, it might be related to brake problems such as worn brake pads or a seized brake caliper.

* Action: Immediately stop driving and let the brakes cool down. Have the car towed to a mechanic to inspect the brakes and rectify any issues.

4. Electrical Problems:

>Sometimes, electrical issues like faulty wiring or a short circuit can lead to a burning smell. If the shaking is accompanied by the smell of burnt rubber or plastic, it could be an electrical problem.

* Action: Do not attempt to drive the car. Call for roadside assistance and have the car towed to a mechanic for electrical diagnosis and repair.

5. Coolant Leaks:

>Shaking and a burning smell can be accompanied by steam coming from under the hood, indicating a coolant leak. Coolant leaks can cause overheating and engine damage.

* Action: Pull over immediately, turn off the engine, and allow it to cool down. Check the coolant level and add more if needed. However, do not attempt to drive the car. Call for roadside assistance and have it towed to a mechanic.

6. Check Engine Light:

>The check engine light is an important warning indicator that should not be ignored. When it comes on with shaking and a burning smell, it usually means a severe issue that requires professional attention.

* Action: Do not continue driving. Call for roadside assistance or have the car towed to the nearest auto repair shop for a diagnostic scan. The mechanic will identify the root cause of the problem and recommend the appropriate repairs.

Always prioritize safety when encountering such issues. If the shaking, burning smell, and check engine light persist or intensify, pull over to a safe location and seek professional help.