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Thread: Engine hesitating when pumping brakes

  1. #1
    DX User
    Join Date
    Mar 2004
    Posts
    7

    Engine hesitating when pumping brakes

    Hey guys sorry I had to make a new thread for this....I searched for this in many different ways and couldnt find anything. If I pump my breaks repeatedly my engine starts to hesitate. This started happening after I changed the strut on the drivers side...never noticed it before that. Any info on this would be really appreciated. Thanks guys.



  2. #2

    Vanilla Sky's Avatar
    Join Date
    Apr 2002
    Vehicle
    1999 Penalty Box
    Location
    Palatka, Florida, United States
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    8,932

    Re: Engine hesitating when pumping brakes

    Does your brake pedal hit the floor? Other than it dropping revs, is everything else normal feeling?

    I'd check for a vacuum leak. Very easy when messing around in that area.

  3. #3
    LX User
    Join Date
    Apr 2009
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    1987 Accord Lx-i
    Location
    Gaffney, SC
    Posts
    258

    Re: Engine hesitating when pumping brakes

    yeah my guess would be a vacuum leak also.....theres a few hoses on that side that'll cause that

  4. #4

    2oodoor's Avatar
    Join Date
    Jun 2006
    Vehicle
    86 LX JDM B20A
    Location
    Georgia-lina
    Posts
    9,062

    Re: Engine hesitating when pumping brakes

    remove the large vacuum hose going to the brake booster and plug it off engine side

    If that cures the hesitating then you either have another vacuum draw somewhere or the booster check valve is not working well

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