However, I can give you some general guidance on what to look for and what to avoid:
Possible Issues:
* Engine Knock: This could be due to a number of things, from a loose engine component to a more serious issue like a failing connecting rod.
* Flickering Lights: This could be a sign of a problem with your electrical system, such as a loose connection, failing alternator, or even a problem with your battery.
What NOT to Do:
* Continue driving with a knocking engine: This could lead to catastrophic engine damage.
* Ignore the problem: The problem will likely worsen and could lead to even more serious issues.
What You SHOULD Do:
1. Safety First: Immediately pull over to a safe location and turn off the engine.
2. Call a Mechanic: The best course of action is to call a qualified mechanic. They can properly diagnose the issue and provide the necessary repairs.
3. Check Fluids: While you wait for the mechanic, you can check your engine oil and coolant levels to make sure they are adequate.
4. Battery Check: If you have a multimeter, you can check your battery voltage to see if it's low.
Important Note: This is just general advice. It's crucial to consult a qualified mechanic for a proper diagnosis and repair.