* Engine knocking or pinging: This is a metallic sound that occurs when the air/fuel mixture is too lean and the engine is under load.
* Reduced power and燃費: A lean air/fuel mixture can cause the engine to run inefficiently, which can lead to reduced power and燃費.
* Increased emissions: A lean air/fuel mixture can also cause the engine to produce more emissions, including hydrocarbons and carbon monoxide.
In the case of a 1995 Lincoln Town Car, there are a few possible causes for running lean on both banks:
* Faulty oxygen sensors: The oxygen sensors in the exhaust system monitor the air/fuel mixture and send a signal to the engine computer, which adjusts the fuel injection accordingly. If the oxygen sensors are faulty, they may be sending an incorrect signal to the engine computer, which can cause the air/fuel mixture to be too lean.
* Vacuum leaks: A vacuum leak can allow unmetered air to enter the engine, which can also cause the air/fuel mixture to be too lean.
* Fuel injector problems: If the fuel injectors are clogged or not functioning properly, they may not be delivering enough fuel to the engine, which can cause the air/fuel mixture to be too lean.
It is important to note that running lean can be a serious problem that can damage the engine. If you suspect that your 1995 Lincoln Town Car is running lean, it is important to have it diagnosed and repaired by a qualified mechanic as soon as possible.