"Buzzing" from Ignition and Brakes: Ford F-53
2012 Class A Winnebago Adventurer Ford F-53 V10:
Two separate "buzzing" sounds.
With the key in the ignition and before turning the key to start the motor, If the brake pedal is depressed, a buzzing sound occurs from the pedal area under the dash. Once the engine is running, the noise stops when the brake pedal is depressed.
Also, a different "buzzing" sound occurs after the key is inserted in the ignition and turned to the "on" position before actually starting the engine. Does not make the sound in accessory position.
Both sounds go away when the engine is running.
From other forum searches, both appear to be related the ABS Hydroboost Power Braking System and/or the Brake Assist module.
I've had another suggest, this "buzzing noises" should not occur. These sounds have been there since buying the motorhome. I've always considered the noises as part of the braking system.
Are these noises normal and can someone explain why the noises occurs?
Many thanks in advance for your response.
Two separate "buzzing" sounds.
With the key in the ignition and before turning the key to start the motor, If the brake pedal is depressed, a buzzing sound occurs from the pedal area under the dash. Once the engine is running, the noise stops when the brake pedal is depressed.
Also, a different "buzzing" sound occurs after the key is inserted in the ignition and turned to the "on" position before actually starting the engine. Does not make the sound in accessory position.
Both sounds go away when the engine is running.
From other forum searches, both appear to be related the ABS Hydroboost Power Braking System and/or the Brake Assist module.
I've had another suggest, this "buzzing noises" should not occur. These sounds have been there since buying the motorhome. I've always considered the noises as part of the braking system.
Are these noises normal and can someone explain why the noises occurs?
Many thanks in advance for your response.
