85 240DL Will not start

Discussion in 'Volvo 240' started by LennyMac, Apr 25, 2005.

  1. LennyMac

    LennyMac Guest

    My DL has been intermittantly missing. Some days, no problems, other days
    engine misses and stalls. Drove to work Sat. with both low and high speed
    miss and stalled while idling at a stop. It almost seem like it starves for
    gas also.
    The car would not start an hour later.
    There is no spark at the plug or at the distributor. Coil resistance is
    good.
    The fuel pump runs (doesn't sound smooth though) when I jump at fuse box.
    I don't feel its a fuel problem.
    The relay solder joints look O.K.

    Does anyone have any suggestions?
    Thanks
     
    LennyMac, Apr 25, 2005
    #1
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  2. LennyMac

    disallow Guest

    Check the wiring harness, both to the ECU, and
    to the second ECU under the hood.
     
    disallow, Apr 28, 2005
    #2
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  3. LennyMac

    dable Guest

    disallow wrote:

    > Check the wiring harness, both to the ECU, and
    > to the second ECU under the hood.
    >
    >> What's the second ECU for? I have had the odd drop out of power that leads me to believe
    >> I need to shoot the damned guy who replaced my front windshield a few years ago and I
    >> have had to go back for re-sealing 3 times - water leaks when it pours rain down near fuse wiring.
    >> If not the issue and it's that engine harness where can I get one, is it easy enough to do myself?


    >> Thanks for reading
     
    dable, Apr 28, 2005
    #3
  4. LennyMac

    disallow Guest

    its to control the ignition. its under the
    hood and susceptible to environmental factors.
    plus the wiring harness for the ICM is just as
    bad as the harness for the ECM, disintegrates
    into powder after 10 years or so. check for
    openings on the wires, and cover em up, or replace
    the harness.

    lots of guys on the forum know where to get
    harnesses, i bought mine off of some guy from
    ebay.

    t
     
    disallow, Apr 28, 2005
    #4
  5. LennyMac

    LennyMac Guest

    Thanks for the advice! What is a good source for an accurate wiring diagram
    for my specific car. I have a Haynes manual that have multiple diagrams but
    does not mention my 1985 DL specifically.


    "LennyMac" <> wrote in message
    news:Xjdbe.98959$f%...
    > My DL has been intermittantly missing. Some days, no problems, other days
    > engine misses and stalls. Drove to work Sat. with both low and high speed
    > miss and stalled while idling at a stop. It almost seem like it starves
    > for gas also.
    > The car would not start an hour later.
    > There is no spark at the plug or at the distributor. Coil resistance is
    > good.
    > The fuel pump runs (doesn't sound smooth though) when I jump at fuse box.
    > I don't feel its a fuel problem.
    > The relay solder joints look O.K.
    >
    > Does anyone have any suggestions?
    > Thanks
    >
    >
    >
    >
     
    LennyMac, May 5, 2005
    #5
  6. LennyMac

    LennyMac Guest

    Is it true that "if the cable to the second ECU under the hood, that harness
    has to be replaced" ?
    "disallow" <loewen_t at yahoo.ca @> wrote in message
    news:...
    > Check the wiring harness, both to the ECU, and
    > to the second ECU under the hood.
    >
     
    LennyMac, May 5, 2005
    #6
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