Skip the auto shop - Our mechanics make house calls

Q: Loud crack behind dashboard while car was off

asked by on

After shopping, I was parked in a parking lot and the engine was off. The radio powered itself off to conserve energy and then I heard a loud crack sound from behind the dashboard. There was no smell of any kind - no electrical burning smell. It had the sound that happens when a PCB board is broken. After waiting a few minutes, I started the car and everything seemed to be functioning normally. I haven’t had any problems with the car since then. Can you tell me what caused that loud crack noise?

A: Unfortunately, pinning down noises can some...

Unfortunately, pinning down noises can sometimes be tricky - especially if the noise is not easily and consistently reproduced. However, in my years of working on cars, I think I may be able to name a few possibilities based on your description. It may have been a door in the HVAC blower case moving after the car powers down. It could also have been a pop noise from the metal case of the radio contracting as it cools down. Some cars have speakers on the dashboard as well. It’s possible the crack could have come from the speaker as the radio was shutting off.

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: Still overheating after replaced coolant

The overheating of your engine can be caused by a few component malfunctions. The low coolant was a good catch. You then need to ask yourself what caused it to be so low. There may be a leak in the...

Q: Lights come on and clicking behind steering wheel

It sounds like you may have an electrical short somewhere within your steering column. This may be related to wiring, the clock spring, or even fusebox issues. The fusebox is usually located under the driver side kick panel on most...

Q: Need help removing instrument cluster from the dashboard

First of all, the factory service information warns against unintentional airbag deployment when replacing the instrument cluster, so I highly recommend you have this task performed by a professional. If you decide to tackle the job yourself, make sure to...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
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...