It's extremely dangerous to drive a vehicle with a knocking engine. You should stop driving immediately and contact a qualified mechanic.
Here are some possible causes of engine knocking, but remember this is not a definitive diagnosis, and it's essential to have your car inspected by a professional:
* Low engine oil: While you mentioned no leaks, low oil pressure can cause knocking.
* Spark plug issues: Worn or fouled spark plugs can misfire and cause knocking.
* Ignition timing: Improper ignition timing can result in knocking.
* Fuel delivery problems: Clogged fuel injectors or a faulty fuel pump can disrupt fuel delivery, causing knocking.
* Mechanical issues: This could include worn bearings, piston slap, or damaged connecting rods, all serious problems requiring immediate attention.
Here's what you should do:
1. Stop driving immediately. A knocking engine can cause serious damage if you continue to drive it.
2. Call a tow truck to transport your vehicle to a trusted mechanic.
3. Describe the symptoms to the mechanic in detail, including the sound of the knocking.
4. Be prepared for a potential repair that could be costly.
Remember, it's crucial to have a qualified mechanic diagnose and address the problem. Driving a car with a knocking engine can lead to further damage and potentially unsafe situations.
