car shakes at a complete stop

Discussion in 'General Motoring' started by GDB, Sep 2, 2005.

  1. GDB

    GDB Guest

    can any help me on 88 honda accord? my car shakes bad on a complete stop
    only. car starts up fine and runs good. but as soonest i come to a
    complete stop it's seems like it want's to fall apart.
     
    GDB, Sep 2, 2005
    #1
  2. GDB

    TeGGeR® Guest


    1) Idle too low
    2) Engine mounts very worn.

    Do you have a carb or fuel injection? you probably need a good clean of the
    carb or the throttle body and EACV.
     
    TeGGeR®, Sep 2, 2005
    #2
  3. Automatic transmission, I presume? If so, the rear engine mount may be the
    same as on my daughter's '93 and is a vacuum controlled hydraulic mount. You
    can tell by looking for the control solenoid, mounted on the center of the
    firewall about 6 inches below the hood. A single connector comes from the
    passenger side (left hand drive) and two hoses attach to the bottom from the
    driver's side. The solenoid applies vacuum when the engine is warm and
    idling (and when in gear, at least) to soften the mount.

    I just went through the diagnostics on her car, and in this case the control
    rod for the valve on the mount itself is gummed up. It will move (and the
    idle smooths out) if I help it with my finger but it lacks the mojo to move
    itself. My partner used to work at a Porsche/Audi dealership and changed out
    a lot of the same sort of mount on Audis, so I know they also have a
    significant failure rate... I'm lucky so far. Best price I found on the 'net
    for the mount is $145 US. If clean and lube won't fix it, replacement is in
    my future.

    I'm trying to get pictures as I go, and the solenoid was easy. The mount is
    scarcely visible at all; I have tried to get it from underneath but haven't
    found a clear shot at it yet. I sure don't want to remove the mount to get
    oil on the shaft, either.

    Mike
     
    Michael Pardee, Sep 2, 2005
    #3
  4. GDB

    Curious Guest

    Check your car's RPM at idle. Mine runs around 1000 RPM's at idle and does
    fine. It recently dropped to 500 RPM and shook badly. A little adjustment
    to the idle screw remedied the problem. What is the RPM reading at idle?
     
    Curious, Sep 2, 2005
    #4
  5. GDB

    Guest Guest

    The engine mounts are a distinct possibility. I had an 88 Accord myself.
    Nearly all the vibrations stopped when the engine mounts were replaced.
     
    Guest, Sep 17, 2005
    #5
  6. My daughter's '93 Accord (200K+ miles) has been doing that too, and the rear
    mount (the hydraulic one) is to blame. The valve works okay except the
    vacuum doesn't have enough oomph to rotate the control rod. It works if I
    reach under there and give it a bit of help from my fingertip. If oil
    doesn't fix it (how am I going to get to that?) I guess it is time for a new
    $200 mount.

    Note that this applies only to auto tranny models.

    Mike
     
    Michael Pardee, Sep 18, 2005
    #6
  7. GDB

    GDB Guest

    thank you all for your tips, it was my rear engine mount that cause the
    problem
    thank you once again.
     
    GDB, Nov 2, 2005
    #7
  8. Thanks for the feedback!

    Mike
     
    Michael Pardee, Nov 3, 2005
    #8
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