Q: Rattling when accelerating

asked by on

My Fusion will intermittently rattle when I accelerate - it doesn't happen every time I drive, but it has increased in frequency.

As soon as I take my foot off of the pedal, the rattling stops. Any ideas?

My car has 129000 miles.
My car has an automatic transmission.

If it is increasing in frequency on longer drives, or hotter weather, this may be a worn connecting rod bearing - which will "rap" under a load. Oil pressure drops with heat, so this type of issue will be more noticeable in conditions of greater heat, but perhaps not noticeable at all in the cold or for short trips where the oil doesn’t get hot.

A certified technician from YourMechanic can diagnose the noise coming from your engine to confirm there is a problem, get an accurate assessment of damage, and give you a cost estimate for repairs. YourMechanic can dispatch a mobile, professional mechanic to your location for this repair.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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
  1. Home
  2. Questions
  3. Rattling when accelerating

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: What is the satellite radio electronic serial number and why do I need it?

While AM and FM stations are free to listen to, satellite radio (SIRIUS) is a paid service. In order to receive signal after the initial trial period is over, you’ll need to enroll with SIRIUS Radio. To do that, you’ll...

Q: How do you attach a child seat tether to the upper anchor?

If you’re using a child seat that features a tether, it should be secured to the anchor point above the rear seat in the car. Here’s how to attach it: Pull the tether out and up to the top...

Q: Starter fuel pump noise

Hello there, many different faults can be causing your 2000 Jaguar Vanden Plas to not start. The most common issue that could still cause this is a bad battery. But since you said you already had that changed, other possible...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...