A vibration may be noted in the brake pedal or steering wheel when the brakes are applied. This is commonly caused by warped front brake rotors. The affected rotors must be re-machined or replaced to correct this concern.
2004 Lexus ES330 Problem Reports
RepairPal Verified 2004 Lexus ES330 Problem Reports
The Check Engine Light may illuminate with codes P0171 and/or P0174 due to a lean running engine. Symptoms may include: Hesitation on acceleration, lack of power, and poor fuel mileage. This is commonly caused by a dirty mass airflow sensor. Our technicians tell us the sensor may be cleaned using an approved cleaner but replacement is often required to correct this issue.
The Check Engine Light may illuminate due to an O2 sensor heater fault. Most commonly the affected O2 sensor will need to be replaced to correct this concern.