Lexus ES300 Fuel Injectors
The Lexus ES300’s engine uses fuel injectors to add gas to its cylinders as it runs, making them an important part of the system. If its injectors fail, it means the engine will run poorly when you drive. You can find the correct injectors for your Lexus ES300 when you need to replace them.
What are fuel injectors and how do they work?Fuel injectors on a vehicle are precision nozzles that spray gas in a fine, atomized mist. It is essential to the engine that the gas mix with air at a specific ratio and the fuel injectors deliver it. These parts spray specific amounts of gas when triggered.
What types of fuel injectors are found in a Lexus?There are various styles of fuel injectors that you will likely encounter in the Lexus ES300, depending on what model year you have:
- Multi-Port Fuel Injection: Some ES300’s use this type of fuel injection. MPFI does not spray fuel directly into the motor’s combustion chambers. Instead, it sprays a mist of gasoline into individual ports of an intake manifold. A valve then opens and sucks the fuel into a chamber.
- Direct Fuel Injection: Contemporary cars implement DFI. In this case, the injectors spray directly into the chambers when they are in position to receive fuel for the next firing.
- Motor misfires: Injectors that are clogged or leaking will cause the motor to miss cylinder firings. It may happen only occasionally at first. You might hear a single misfire or sputter that clears up immediately. The ES300 may start running rough with a poor idle or even stall as the fuel injectors continue to fail.
- Lower fuel economy: When the cylinders fail to fire in your Lexus ES, the fuel that was sprayed into them is wasted. You will notice your fuel economy decrease as the fuel injectors deteriorate.
- Sudden surging: If the injectors spray too much fuel into the chambers, it causes the engine to run faster than intended when you press on the gas pedal. This process is called surging because the engine accelerates unexpectedly when this happens.
Fuel injectors on your luxury sedan only need occasional cleanings. You can keep the nozzles free of residue that builds up on them over time by adding fuel system cleaner to the gas tank when you fuel up. This cleaning is only needed every few months at most. Some brands of gas include similar additives, making this unnecessary.