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: White smoke billows out of exhaust pipe

Hey there. White exhaust smoke is generally indicative of a blown head gasket or other conditions where water or water vapor is getting into the engine. Higher mileage vehicles are especially prone to this potential problem. Have a professional mechanic,...

Q: Intermittent issue with the brakes slipping

The problem may be due to the ABS engaging and seeming like the brakes are releasing in the front. If you have a defective wheel sensor in the front, then this can cause this. The wheel that has a bad...

Q: Is a Vehicle With a Bad Exhaust System Dangerous?

In most states in the USA, if you have an exhaust leak, you will fail that state’s annual safety inspection. The vehicle will then be rejected for safety due to exhaust gases such as NOx, carbon monoxide, and many other...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...