Lexus is a popular Japanese luxury car brand known for its top-tier performance and advanced features that set it apart from the competition. However, like other luxury cars, Lexus also faces issues that can adversely affect vehicle performance.

It is essential to understand the signs of a drop in your Lexus’s engine performance so you can take remedial measures to address the issue. At Tanner Motors, located near you in Phoenix, AZ, our professional mechanics will share the signs to watch for to recognize engine problems.

Rough Idling and Stalling

One of the leading signs of engine issues in Lexus vehicles is rough idling when the engine is stopped. In fact, the excessive shaking, along with RPM fluctuations, will be very hard to miss. Most of the time, the problem in the combustion process is the root cause of the rough idling and stalling you experience in your high-end car.

At times, issues such as vacuum leaks in your Lexus can cause rough idling and stalling by disrupting the air-fuel mixture, resulting in uneven engine performance. Additionally, the Idle Air Control (IAC) valve should be inspected, as a dirty or malfunctioning valve can disrupt the engine’s efficient operation in your Lexus.

You should also have your fuel injectors inspected by professional mechanics, as accumulated dirt can clog them and lead to inconsistent combustion, often resulting in rough idling and stalling.

Unusual Engine Sounds

Generally, when you are driving your Lexus under normal circumstances, you are never going to hear anything unusual coming from your vehicle other than the roar of the engine when you press the gas pedal for acceleration. However, if you hear knocking, clicking, hissing, or whining, it indicates an issue with your engine.

In fact, the knocking sound that you get to hear indicates worn-out connecting rod bearings or excessive wear in the engine. While the clicking sound is caused by loose valve lifters or a failing fuel injector, the hissing sound is often related to a vacuum leak or a coolant leak.

Furthermore, if you hear a whining sound, then it might be caused by a failing power steering pump, alternator, or water pump. If you are having difficulty locating the leak, contact our auto repair shop in Phoenix, AZ, to have your Lexus inspected by our team of certified mechanics immediately.

Drop in Power and Acceleration

High-end cars like Lexus are known for their performance. If you notice a sudden or gradual drop in performance, or your vehicle feels sluggish when accelerating or climbing hills, your engine needs immediate attention from a certified mechanic.

Various factors can reduce your engine’s power, ranging from a clogged catalytic converter to a weak fuel filter and a malfunctioning Mass Airflow (MAF) sensor. These issues must be inspected and fixed immediately, as any delay can cause further damage to the engine.

If timing is off, it can cause improper engine timing, reducing vehicle performance and acceleration.

Illuminated Check Engine Light

There are several warning lights located on the dashboard of your vehicle linked to the specific components of your Lexus. The check engine light is a warning indicator related to your high-end car’s engine. If it illuminates, you must take immediate notice.

Now, the check engine light can be triggered by both minor and significant issues in your Lexus. It is crucial to analyze the fault codes displayed on your vehicle to identify the exact engine issues. When in doubt, contact Tanner Motors to have your Lexus diagnosed by our certified mechanics immediately.

Leading Lexus Repair Facility in Phoenix

At Tanner Motors, located in Phoenix, AZ, we are the most sought-after Lexus repair and service facility. Our state-of-the-art auto repair shop is equipped with the latest tools and diagnostic equipment to help ensure the best care for your Lexus.

Call or contact us today to make an appointment, and we will have your Lexus back on the road in record time.