93 Accord stalls while driving on Highway

Discussion in 'Accord' started by Mo Man, Apr 14, 2006.

  1. Mo Man

    Mo Man Guest

    The car is 93 Accord with 5 speed standard trans. I've had the coil
    replaced twice during this time. The last time was 5 months ago so I'm
    kind of leaving that part out of the equation. The car seems to stall while
    driving on the highway for about 15 minutes or 15 miles. It will stutter
    real quick once or twice and then die. I'm able to push the clutch in and
    turn the key all the way off and then re-start it while still coasting
    If I don't switch the key all the way off, it will not restart. Any ideas?
    Fuel pump? Since this happens 3/4 into my commute I'm unsure if it will do
    again after 15 more minutes.

    Thanks for any responce

    Mo Man, Apr 14, 2006
  2. Mo Man

    Jason Guest

    I checked my Haynes Repair manual and it states the following information:
    Engine Isssue #6 Engine Starts but Stops Immediately:
    1. Loose or faulty electrical connections at distributor, coil or alternator.
    2. Insufficient fuel reaaching the fuel injectors.
    3. Vacuum leak at the gasket between the intake manifold and throttle body.

    I could not find a listing for the exact problem that you are having. It's my
    guess that #1 is the most likely cause of your problem. In addition, there
    may be a "short" in the electrical wiring running to or from the
    distributor, coil or alternator. Shorts are hard to locate since they can
    only be found when the wire is shorted out at the time of the test. I
    should also note that the distributor, coil or alternator may be
    Jason, Apr 15, 2006
  3. Only a partial response here....

    Having to turn the key off and back on suggests the ECU is deciding the
    engine isn't running and shuts off the fuel pump as a safety measure
    (standard in modern cars). It may be deciding that because the engine dies.
    Another possibility is that the engine is dying of fuel starvation and with
    pressure bled from the fuel rail it won't figure out the right mixture in
    time. One more: the ignition switch may be failing and only moving it all
    the way back to off will patch it up again.

    The crucial question is whether the engine is dying because of fuel or
    ignition problems. The driver gets two good clues: if the tach drops like a
    stone and the power disappears like you flipped a switch the ignition is
    going away. If the tach follows the engine speed as it fades, and the power
    seems to sag to nothing instead of lurching, you have fuel delivery

    One final thing: if it acts like ignition and the warning lights don't come
    on until you turn the switch off and back on, you can bet it's a bad switch.
    (Outside chance it's a cracked connection inside the battery, but the switch
    is the way to bet.)

    Start by reading over http://tegger.com/hondafaq/faq.html#startrun and see
    if anything rings a bell. It is a very good bet the problem is one of those
    mentioned; actual fuel pump failures are rare in Hondas, for example. Since
    the coil has been replaced twice we can pretty much rule that out. That
    leaves you with three classic trouble areas: the Main Relay (fuel pump
    relay), the ignitor and the ignition switch. As the driver you probably have
    enough clues now to decide on a course of action. Good luck!

    Michael Pardee, Apr 15, 2006
    Denise G likes this.
  4. Mo Man

    Remco Guest

    It could be so many things, but next time it happens note if the idiot
    lights on your dash come on. If they do not come on when it stalls, I'd
    check the ignition switch.

    Remco, Apr 15, 2006
  5. Mo Man

    TeGGeR® Guest

    If the coil is truly good, then you have an igniter problem.
    TeGGeR®, Apr 15, 2006
  6. Mo Man

    Mo Man Guest

    Mike, Thanks for your very informative link and post.

    In responce to your querry on the tach and dash lights, I do remember the
    tach dropping
    like a stone and the only dash light that came on was the 'Check Engine
    After I turned the key all the way off and then back on, the remaining dash
    lights came back
    on, and the tach resumed to follow the engine RPM, as long as I had the
    clutch engaged of course.
    Do these symptons still point to the igniter or maybe more so towards the

    Thanks Again for your insight.

    Mo Man, Apr 15, 2006
  7. -------------------------------------------

    Could be somebody forgot to replace the heat-sink compound (just like on
    a Pentium processor) on the backside of the ignitor and it's overheating
    now that the weather is warmer.

    'Curly Q. Links', Apr 15, 2006
    Michael Pardee, Apr 15, 2006
  9. Mo Man

    Mo Man Guest


    I replaced the ignitor and and took it out for a little ride around the
    block, about 20 miles, and it ran
    without stalling. However, I will need to take it for a couple of rides
    since there were days when it wouldn't
    stall out. But it is a good sign so far. The new ignitor was slightly
    different as it had its own heat sink attatched
    to it. I just added a few more lock washers to take up the extra space on
    the screws so that they wouldn't
    protrude out beyond the bottom of the heat sink. Also, when I opened the
    distributor cap to get at the ignitor,
    I noticed that there was oil inside the cap. Seems like the seal from the
    distributor and the engine head is
    leaking. This might have contributed to the problem also. Is this seal easy
    to fix?


    Mo Man, Apr 15, 2006
  10. The ignitor is a good suspect, if only because it is fairly inexpensive and
    is about at the end of its life expectancy. (I don't know why they often
    seem to fail after a decade or so, but that seems to be the track record.)
    If the problem returns I would focus on the ignition switch, especially with
    the lights not coming on until the switch was cycled. Now your ignitor
    should last the rest of your car's life and won't strand you somewhere by
    failing altogether.

    I haven't had direct experience with the distributor failing, but others
    have. I will leave that part to them.

    Michael Pardee, Apr 15, 2006
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