Skip the auto shop - Our mechanics make house calls

Q: How do I fix load muffler noise from my Lexus RX 300

asked by on

Very loud and gets louder at higher speeds

My car has 100000 miles.
My car has an automatic transmission.

A: You will need to have the exhaust inspected...

You will need to have the exhaust inspected to see where the exhaust is leaking. Sometimes the flex pipe connected to the engine goes bad and leaks. Other times the muffle can rust through causing this.

Have a muffler shop or mechanic inspect your exhaust system to quote the repair. Have them show you what exactly is wrong. Be sure to check it yourself to avoid replacing the entire unit when you only need a piece of the system.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Brake pad is vibrating Toyota IST

Hello. This vibration or pulsation in the brakes would require a complete brake inspection in person, but the problem is most likely going to be warped rotors and the pads worn down. The front rotors and pads would need to...

Q: What Types of Metals Are Used to Make Exhaust Systems?

Chances are good that your exhaust system is made from 400-series steel. Cast iron is used for the exhaust manifold (stock). Aluminized steel is often used in aftermarket exhaust systems. In addition, a wide range of other metals can be...

Q: My car makes a loud sound?

Hi there. Seems unusual the noise is only there over 50mph. The noise may be coming from a failing wheel bearing and this may account for the car shaking, as well. It could be, a separated tire that you are...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.