504 brakes
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Thread: 504 brakes

  1. #1
    Fellow Frogger! Doush_504's Avatar
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    Nov 2010
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    Cairo, Egypt
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    Default 504 brakes

    What happens if the brake pedal is pumped when the car is idling ?
    Should RPM go up or down ?
    In a friend of mine's car, RPM used to go up when pumping the brake pedal and then he installed electronic ignition and now the car almost stalls when doing it.
    Any advice ?

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    Chadi

    1982 504 SR white manual sedan with A/C (257 000 Km)
    2012 308 1.6 VTi Vapor Grey manual H/B (35000 Km)
    1994 405 1.6 white manual sedan (208 000 Km)
    1992 605 SV24 (91 000 Km)
    2005 406 2.0L automatic (Replaced with a 2013 C5)
    1983 505 GR white manual sedan with A/C (170000 Km)

    All since new


  2. #2
    Demannu-facturing! Demannu's Avatar
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    Default

    Pumping the pedal allows a small amount more air to enter the intake through the brake booster. If the engine is already running rich at idle, it will make it run faster. If the engine is running lean, it will slow it down. If the engine is running just right, it shouldn't make much difference, perhaps slow it down a little as it leans out a touch.
    Scotty

    Melbourne - Dandenong Ranges

    1956 Peugeot 403 - 'Francois' - resto project

    1969 Peugeot 504 - 'Pascal' - daily driver project

    1970 Peugeot 404 Utility - 'Brutus' - resto project

    1978 Peugeot 604 - as yet unnamed - V6 on straight LPG

    1987 Peugeot 505 - as yet unnamed - project car

    1999 Peugeot 406 Coupé - 'Chloe' - 5 speed manual

    2011 Peugeot 3008 XTE HDi - 'Zoe' - hatchback on steroids

    2014 Peugeot RCZ - 'Remy'

    1999 Range Rover 4.6 HSE - 'Grover' - tow car

  3. #3
    Fellow Frogger! Doush_504's Avatar
    Join Date
    Nov 2010
    Location
    Cairo, Egypt
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    Default

    Thanks
    Chadi

    1982 504 SR white manual sedan with A/C (257 000 Km)
    2012 308 1.6 VTi Vapor Grey manual H/B (35000 Km)
    1994 405 1.6 white manual sedan (208 000 Km)
    1992 605 SV24 (91 000 Km)
    2005 406 2.0L automatic (Replaced with a 2013 C5)
    1983 505 GR white manual sedan with A/C (170000 Km)

    All since new


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