Q: Something banging around under the hood

asked by on November 09, 2015

I have a repeat problem with my 2013 Mazda CX-5 that I can’t seem to find a solution to. I only have 7,200 miles on this car, and for the last 2,000 or so there has been a sound coming from the driver side of the engine compartment. It sounds like something is banging around in there, but I got it checked out at the dealership, seeing as the car is so new, and they found nothing. What could be making this noise? I don’t see anything when I look in the engine compartment.

Greetings and thank you for writing in with this concern! Without knowing more about the conditions that cause the noise (when, where, how, etc) it is difficult to advise on this concern. Mazda has released a number of Technical Service Bulletins (TSB) for noise related concerns. Depending on the Vehicle Identification Number, the following TSBs could apply to your vehicle: 03-003/14: Groan noise from front wheel hub, 04-002/14: Clunk/bang noise during first movement after sitting, 01-006/13: Unusual engine noise after a cold engine start, 03-002/14: Rattle/chatter noise from rear differential, 02-003/15: Knocking/squeaking noise from front strut bearing, and 02-001/15: Creaking noise from front lower control arm bushings. Contact your local Mazda dealer with the Vehicle Identification Number and explain the noise as best you can. Act quickly as the vehicle should still be covered under warranty (3 years/36,000 miles) and any related repairs should be covered by Mazda.

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

What others are asking

RPM fluctuation every few seconds with AC on at Idle in my 2013 Ford

Hi there. It is common to see a small fluctuation in RPM when the AC turns off and on due to the drag on the engine. It should not drop that much though. It sounds like the idle control system...

Power steering leak 2004 Mazda6

Hey there. The names and part numbers will depend on the manufacturer of the part. When we walk into a parts store looking to purchase power steering lines, a verbal description is necessary and often diagrams will need to be...

Sqealing noise EPC light

Hello. It sounds like it may have a failing alternator. If the alternator is failing or if the belt is loose due to a bad belt tensioner then this will occur. I would check and see if the belt is...

Do you think it is the starter

Hello there, thanks for your question. I believe you are correct in the fact that the starter is most likely your issue. If all the lights, windows, radio, and wipers all function properly as they should, most likely the battery...

Speed control broken. 2005 Buick Terraza

You may be having a problem with the throttle control actuator assembly not getting a signal from the ECM, or the actuator module is defective. The cruise control test with the dealer scanner can monitor all the inputs and outputs...

Transmission. Car turning off when changing gears.

Hi there, thanks for writing in. This is a common issue on a lot of Nissan vehicles. Most of the time it is due to a faulty throttle body. The throttle motor fails at times and cannot keep the throttle...

Rear suspension creaking on a '02 Mercedes C180

The problem is that, since it's a Mercedes-Benz, they used to make cars with grease fittings. Now there are no grease fittings, but just rubber bushings and metal pieces. Your Mercedes is 13 years old. As they get older, that...

Recommendation about most reliable pickup trucks

Toyota is the most dependable. I remember seeing a '99 Tacoma with a 4-cylinder engine and standard transmission. It had 800,000 miles on it and it was still running pretty good. They make solid trucks. There is no arguing about...

The engine is making a ticking noise I would like to what it might be

Ticking or knocking sounds typically come when the engine has been ran low on oil for a period of time or if the engine has had the wrong oil in it. I would recommend checking your oil level to ensure...

Related articles

Symptoms of Bad or Failing Differential / Gear Oil
If your car has exceeded its gear oil service interval, or if you hear the differential whining, you may need to replace the differential/gear oil.
Symptoms of a Bad or Failing Power Steering Pump
If you hear squealing noises, the steering wheel feels stiff, or find damage on the power steering belt, have the power steering pump replaced.
What Is the Purpose of Engine Gaskets?
Engine gaskets work as seals to maintain pressure, hold fluids, and prevent debris from entering the engine. Gaskets are vital for engine performance.