Skip the auto shop - Our mechanics make house calls

Q: Tapping sound near brake pedal.

asked by on

I hear a tapping sound inside the car near the brake pedal. When I press the brake pedal, the tapping dims for a few seconds, but then it returns. Whatever it is has killed my battery and is still tapping now. I do not hear the sound when I am under the hood.

A: The clicking noise is one of the relays und...

The clicking noise is one of the relays under the left side of the dash cycling on and off. I have seen aftermarket alarm relays do this and this may be the reason it is killing the battery. Most factory relays would not stay on after the key is turned off. This is why I would suspect an aftermarket relay or a factory relay that does get power all the time. I recommend to have a qualified mechanic check it out, such as one from YourMechanic. They would be able to isolate the relay and find out why it will not shut 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・Save up to 30%

Get a quote

What others are asking

Q: Car won't idle, sputters and shuts off. 1995 BMW 318is

Hello there, a few different faults could cause this issue on your 1995 BMW 318is. When oil and coolant mix, the usual suspect is the head gasket. The mixing of coolant and oil may take some time to develop and...

Q: Tapping problem

Hello there, as the vehicle ages and goes up in mileage it is not uncommon to hear a tapping noise such as this. Many different things can cause this noise but in all cases the noise is not normal. The...

Q: 2005 Honda Odyssey won't crank

Hi there, thanks for writing in about your 2005 Honda Odyssey. Make sure to have the vehicle completely in park before trying this. It may sound obvious, but some vehicles tend to have a bit of a tough time totally...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
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...
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.