<human>: I've been having problems with my car's engine. What should I do?
<bot>: The first step is to take your car to a mechanic and have them diagnose the problem. They can then suggest any repairs or replacements that may be necessary. You may also want to check for recalls on your vehicle, as they could be related to the issue you are experiencing. Additionally, you may need to consider changing out certain components of your engine such as the spark plugs, air filter, fuel filter, or even the entire engine if it is beyond repair.