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Idle Drop while pressing brake hard on idle? normal?

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Old 09-04-2007, 08:04 PM
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sunguf
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Default Idle Drop while pressing brake hard on idle? normal?

hey just like stated above is this normal? when i come to a complete stop and press the brake pedal down I hear what sounds like an air leak under me feet and the idle drops. is this normal or is my vaccum pump going bad? I have warranty but other mods and don't know if they'll cover it if not normal.

2004 GT 5 speed Manual
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Old 09-04-2007, 08:37 PM
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yuengling910
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Default RE: Idle Drop while pressing brake hard on idle? normal?

i think it's taking extra vacuum to boost the brakes, could be the drop in idle. mine does that too.
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Old 09-04-2007, 08:56 PM
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MustangMike8705
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Default RE: Idle Drop while pressing brake hard on idle? normal?

yes it is normal.
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