No Vacuum in EGR valve #16 hose

Discussion in 'General Motoring' started by Wavy, Nov 29, 2005.

  1. Wavy

    Wavy Guest

    Hi All....

    I have a little problem with my 1993 Honda Accord EGR system. The car
    has 171K miles. The Engine runs fine at idle except for a slight,
    inconsistant miss. Then the car has a slight hesitiation at about
    1500-1800 RPM. Other than that, the car runs fine.

    I checked the hose (#16) that goes to the EGR value and I determined
    that it has NO vacuum in it (at idle or above 2000RPM).

    What would cause NO vacuum to the line to the EGR valve?

    A previous post said it might be the EGR solenoid.

    How can I tell if the EGR solenoid is faulty?

    I will admit to knowing very little about Hondas, but I really want to
    learn.

    Can someone please offer me advice to fix this problem?

    Hondas are great cars and I would like to keep this one running for a
    long time :)
     
    Wavy, Nov 29, 2005
    #1
  2. Wavy

    jim beam Guest

    you need to check the manual to be sure about this, but i don't think
    there should be vacuum on that line all the time - only when the ecu
    considers the load appropriate. besides, the actuators for that stuff
    are /very/ reliable. first likelihood is that the egr valve is getting
    clogged. take it off & clean it up. use a wooden spatula to remove the
    gunk from the moving plug contraption, not metal - avoids scraping & gas
    leakage. and the gasket will likely fall apart on removal of the egr
    assembly, so buy a replacement before you start.
     
    jim beam, Nov 29, 2005
    #2
  3. Wavy

    Wavy Guest

    Thanks for the reply Jim. Do I just have to clean the EGR valve?
    Or, do I also have to clean the EGR passages under the brass plugs?
    Also, if I have to clean the EGT passages, how do you take out the
    plugs?? There is no way to grip them in order to take them out.
    Seems like the only way to remove them is to drill them out. Am I
    correct??

    Thanks again!!!
     
    Wavy, Nov 29, 2005
    #3
  4. Wavy

    Misterbeets Guest

    Idle problems would be caused by an open EGR, either one that is
    clogged or getting vacuum at all times.
     
    Misterbeets, Nov 30, 2005
    #4
  5. Wavy

    jim beam Guest

    try the valve first. if that's insufficient, do the plugs/passages.
    google this group for a great pdf on the [small] drill/screw/slide
    hammer technique for plug removal. DO NOT try to drill the whole plug
    in one go - unless you have a source of bigger plugs.
     
    jim beam, Nov 30, 2005
    #5
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