Q: Hissing noise when brake pedal depressed.

asked by on

Hissing sound when brake pedal is depressed. Fluid reservoir is full and there is no wetness inside under or near the pedal or carpet (I've even pulled the carpet up to look) so it doesn't look like I'm leaking fluid into the booster. The pedal is not hard to depress, and there's no smell or anything else. Just the hissing sound.

My car has 200000 miles.
My car has an automatic transmission.

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. Hissing noise when brake pedal depressed.

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: ABS actuator to be replaced 2nd time in a year

Hello. There is no other permanent fix for this other than replacing it with a factory unit. Once it is replaced the connections and the grounds need to be checked. Also all of the wheel speed sensor signals need to...

Q: Q: Have rapid clicking

If your transfer case does not have a shift solenoid, then the Throttle Valve cable could be installed incorrectly making a clicking sound. This will only occur when the engine is running and the vehicle is in motion. Most likely,...

Q: Steering Stuck sometimes and sometimes not

Those are two possibilities, but it may also be the struts and/or the upper mounts for the struts and the ball joints. This does not rule out the rack or the pump, but other possibilities that can cause the binding....

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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.