Q: Engine noise almost like a dull rattle but no check engine light not on

asked by on January 06, 2018

Last few days engine make a muffled rattling sound. Notice more on slow acceleration and when stopped. No check engine light, definitely coming from engine and not tires. Tire pressure good oil pressure good transmission fluid good

My car has 90000 miles.
My car has an automatic transmission.

Hi Le. Thanks for contacting us today. There are many reasons why a noise like this can occur, but in most cases, it’s due to a vacuum or exhaust leak. However, it could also be due to an air intake that is loose or damaged, loose serpentine belt pulley or a host of other possible sources. You might want to have a professional mechanic complete an inspection to help locate the source of this noise before attempting any repairs.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

How do I use the remote keyless entry (RKE) system to locate my vehicle?

The remote keyless entry (RKE) transmitter has a vehicle location feature to help you find your car. This system is particularly helpful if your vehicle is in a parking lot or garage surrounded by many other vehicles, and you can’t...

Pc reset

the check engine light is an indication there are stored codes in the computer and disconnection of battery will not clear memory. You will need to have a scanner hooked up and then can clear and retest for codes. This...

What does the power steering Warning Light mean?

The power steering Warning Light is located on your instrument cluster. When the power steering Warning Light is illuminated, it means that your power steering system is not working correctly. The vehicle should be inspected as soon as possible. Tip...

Related articles

A Buyer's Guide to the 2012 Lexus GS
A A decade after it debuted, the 2012 Lexus GS still hasn’t found a strong foothold in the sport-sedan market. However, this doesn’t mean you shouldn’t take a closer look. It’s much more affordable than competitors like the BMW 3...
A Buyer’s Guide to the 2012 Volkswagen Touareg TDI
The The 2012 Volkswagen Touareg TDI brings diesel to the family in a big way. This crossover SUV delivers seamless performance in a vehicle that obviously designed for the open road rather than any trails or other types of off-road...
A Buyer’s Guide to the 2012 Mercedes Benz S350 BlueTec
The The 2012 Mercedes Benz S350 BlueTec brings diesel to the S-Class line in an extravagant way. With exceptional luxury, comfort and performance, you’ll have to schedule a test drive just to experience it for yourself. Once you do, you...