1986 740 GLE Ignition Cold Weather

Discussion in 'Volvo 740' started by Tom Hemp, Dec 9, 2005.

  1. Tom Hemp

    Tom Hemp Guest

    In cold weather now it takes about 10 to 15 seconds when I turn the ignition
    key to ON for the instrument panel gauge lights to all light up. Once this
    happens then I can turn the key to START and the engine starts fine. If I
    just turn the key to START on a cold morning then the engine will crank for
    10 to 15 seconds till all the instrument panel gauges light up and then the
    engine starts immediately. Does anyone know what is causing this slow start
    up with power I assume to the electrical system(relay?).

    Thanks, Tom
     
    Tom Hemp, Dec 9, 2005
    #1
  2. Tom Hemp

    James Sweet Guest


    It's gotta be an electrical problem, try wiggling the ignition switch,
    they've been known to go bad occasionally.
     
    James Sweet, Dec 9, 2005
    #2
  3. That's an excellent description of the symptoms I got when my '85 765T
    ignition switch was failing. It got worse over a period of a couple months
    until I got up the energy to change it. When warm it worked reliably. (You
    could pre-warm the switch with a hair dryer, I suppose, to confirm that is
    the problem. But I think it's a safe bet.)

    The switch is easy to replace (up to an hour, if you work as slowly as I do,
    but nothing frustrating) and is available aftermarket for under $100 US from
    several sources - I went to IPD at www.ipdusa.com Only the electrical part
    is replaced; you keep the lock part in place. IIRC a Phillips screwdriver
    does it all.

    Mike
     
    Michael Pardee, Dec 10, 2005
    #3
  4. Tom Hemp

    Randy G. Guest

    That's my first guess as well based on teh smptoms, but if it doesn't
    work...

    ....disconnect, clean, and reinstall the battery cables at both ends.

    ....Check the battery voltage before ignition is turned on, after it is
    turned on, while it is cranking, and after it starts.

    .....remove, clean and replace the fuses. A piece of scotchbrite works
    well. Clean the fuses AND the tabs where they connect in teh fuse box.


    __ __
    Randy & \ \/ /alerie's
    \__/olvos
    '90 245 Estate - '93 965 Estate
    "Shelby" & "Kate"
     
    Randy G., Dec 10, 2005
    #4
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