Skip the auto shop - Our mechanics make house calls

Q: How can I stop my engine rattling?

asked by on

After just 40,000 miles, my 2007 Honda Civic began acting up with loud rattling sounds and vibration coming from the engine. The engine seems to be running alright, but it is making quite a racket doing it! I'm worried that I may have a real problem with this car. I need help solving this issue!

A: Let me start by saying that there could be ...

Let me start by saying that there could be one or more issues contributing to a loud rattle and vibration. Diagnosing a vibration and rattle are a hands-on skill to determine the correct repair. There are two areas that should be looked at: the drive belt and the motor mounts. The belt drive should be checked to ensure there are no failing pulleys causing a noise and that the belt tensioner is strong enough to keep tension on the belt. A weak belt tensioner would transmit a vibration and sound into the chassis as the tensioner moves back and forth. The next area to look at are the motor mounts. Your Civic has three motor mounts and one torque mount. The motor mounts are rubber insulators that help reduce motor vibration into the chassis and the torque mount reduces the amount of twist the engine has when stepping on the accelerator pedal. The motor mounts, being made of rubber, will weaken over time due to heat, cold, and engine movement, causing them to collapse, break and tear. When the motor mount is collapsed or broken, it will allow the motor to transmit noise and vibration thru the chassis. It is also possible that your vehicle could simultaneously be experiencing a failing belt tensioner and a partially collapsed motor mount, resulting in amplified sound. To have your vehicle inspected, please contact YourMechanic and one of our technicians will be happy to assist in diagnosing the issue and potentially replacing either the drive belt tensioner or the motor mounts if required.

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・Fair and transparent pricing

Get a quote

What others are asking

Q: I have a 2007 mdx and the check emission system light came on while I'm driving but not all the time. What can cause that issue?

For the transmission, check the fluid to see if it's low. If the fluid is low, then it will need to be topped off. If the fluid is full and is red in color, then there could be an issue...

Q: How do I adjust the steering wheel of a 2012 Honda CR-V?

Adjusting the steering wheel is an important thing to do. Having the steering wheel adjusted to the optimal position for you will increase your ability to drive safely, and also increase your comfort. It’s very easy to adjust the steering...

Q: Shutoff during start, Check Engine Light on, power loss - 1990 Mazda B2200

First thing is to check to see what problem codes are setting off the Check Engine Light. The compression numbers you mention are also pretty low, indicating worn piston rings, or burned valves. If you would like, a certified technician...

Related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...