Whoop Sound When Pressing Brake

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pbar
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Whoop Sound When Pressing Brake

Post by pbar »

Occasionally, and randomly, I have started to get a whoop/squeak sound from under the bonnet when pressing the brake. Only lasts a second. I am assuming it is to do with the vacuum system on the servo/master cylinder?

Just wondering what the most obvious things are to look at before I delve in. Thanks!
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Re: Whoop Sound When Pressing Brake

Post by Paul G »

It's probably in the servo Paul, either the plastic valve that plugs into the rubber grommet from the vacuum pipe or the atmospheric air valve on the rear of the servo where the brake pushrod goes in. Get someone else to press the pedal whilst you have a good listen to see if you can hear which it is.

I've got an old servo and I think both are on it so I could rob the bits and send to you if you can't get them locally.
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pbar
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Re: Whoop Sound When Pressing Brake

Post by pbar »

Thanks very much Paul, I appreciate that. I will have a closer listen as you suggest and see if I can pinpoint it, cheers!
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Major_Tom
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Re: Whoop Sound When Pressing Brake

Post by Major_Tom »

pbar wrote:Occasionally, and randomly, I have started to get a whoop/squeak sound from under the bonnet when pressing the brake.
Sorry, that's me. I'll pack it in.
I'm the one who leaves all those shoes in the carriageway.
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Re: Whoop Sound When Pressing Brake

Post by 340truck »

Major_Tom wrote:
pbar wrote:Occasionally, and randomly, I have started to get a whoop/squeak sound from under the bonnet when pressing the brake.
Sorry, that's me. I'll pack it in.
Tom I've told you about this sort of thing before, time to stop now
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pbar
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Re: Whoop Sound When Pressing Brake

Post by pbar »

Just thought I would update this as I found the culprit to be a stuck caliper piston.
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Re: Whoop Sound When Pressing Brake

Post by andyd »

pbar wrote:Just thought I would update this as I found the culprit to be a stuck caliper piston.
Well done Paul :D

Always good to hear what the problems were,what the fixes are and any links to the parts etc.
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Re: Whoop Sound When Pressing Brake

Post by Jasonmarie »

Glad to here all sorted :cool:
Ford Capri 2.0 Laser 1987 Mercury Grey ....... :beer:
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pbar
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Re: Whoop Sound When Pressing Brake

Post by pbar »

Thank you guys :)
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Re: Whoop Sound When Pressing Brake

Post by Fordoholic Nick »

pbar wrote:Thank you guys :)
Great that you found what the problem was Paul and you did not have to 'brake' the bank to get it fixed. Sorry I will 'stop' being silly as you must be getting really 'piston' off witrh my gags :lol: :lol: :lol:
I was born a Fordoholic, They'll bury me a Fordoholic...
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pbar
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Re: Whoop Sound When Pressing Brake

Post by pbar »

Now we know where those joke books of Bob Monkhouse went :)
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