Q: Sloshing noise when pressing the accelerator

asked by on

Every time I press the gas pedal (even when I'm parked), there's a noise of water going around somewhere in front. I think near the engine? None of the lights are on and the car runs great. Is this the coolant or something else? Is it dangerous or can it damage the car? Any way I can solve it myself? If not, what's the estimated cost? Thanks for your help!
My car's mileage is 60000 miles.

Hi there. That noise you are hearing is the engine coolant (anti-freeze) traveling through the heater core. The reason you can hear it is due to air being trapped in your engines cooling system. You may not have any drivability issues, such as overheating, but if left alone, you could experience issues down the road.

I suggest having a qualified technician, such as one from YourMechanic, inspect the coolant noise. It may also be time for a coolant system flush depending on your coolant quality. If so, the purging of the cooling system is part of a coolant flush, so it will save you money doing it now.

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
  1. Home
  2. Questions
  3. Sloshing noise when pressing the accelerator

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: Fromt left collision, curtain airbag didn't deploy. Should it have? I broke the window with my head.

Hi there. First and foremost, I'm glad you're able to send this question to YourMechanic.com - as an impact like you've described can be fatal in some cases. In regards to the side-air bag, the way in which they deploy...

Q: Is my car safe to drive 350miles to and 350miles back in one day if my torque converter clutch solenoid is stuck?

The reason you are only seeing the Check Engine Light come on at lower speeds in and around town as opposed to being on the freeway is due to the fact that the TCC (Torque Converter Clutch) is not getting...

Q: Not starting, battery drains

The alternator may test good but may be cause of draw on battery. You will need to have the battery draw isolated by checking the circuits until the draw is found. This can only be done by isolating circuits. I...

Related articles

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...
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...
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...