Volvo 850 1996 non-turbo wagon non start problem

Discussion in 'Volvo 850' started by david, Aug 21, 2004.

  1. david

    david Guest

    Hi!
    My wifes Volvo will not start. I pulled the fuel line at the fuel
    rail and it is getting fuel there. I replaced the rotor button and
    distributor cap. (They were both rough looking, corroded pitted etc.)
    I am getting fire to the coil but not from the coil to the
    distributor. I took the coil module (on the firewall) and crankshaft
    sensor (on top of the bellhousing) and had them installed on another
    Volvo and they started THAT one up. My battery has a weak cell in it
    as well and will not hold a charge long. Any help would be
    appreciated. Thanks! David
     
    david, Aug 21, 2004
    #1
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  2. david

    Guest Guest


    Well fix the battery first so it will hold up to 11.5v under cranking!

    recheck for a good fat spark on the coil king lead at the dissy end by
    wedging it ~4mm from a good earth and cranking. If no, replace the king lead
    and try again, if still no coil or amplifier is knackered. If yes then
    recheck why spark isnt reaching plugs. (cap, rotor arm etc.)

    Tim..
     
    Guest, Aug 21, 2004
    #2
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  3. david

    Mechanic Guest

    Had an 850 with a weak battery that would turn over but refuse to start.
    I assumed that with a battery charger running and turning over, that
    the car should start. It would not. Once I connected a 2nd good battery
    with booster cables, the car immediately started. Seems like the
    electronics need to see a certain voltage and current level to start. I
    would replace the battery first and try again.
     
    Mechanic, Aug 22, 2004
    #3
  4. Yes indeedy. The starter motor uses a very large current, and if the
    battery is not in good condition there simply won't be enough energy
    left over to make a good spark. Even if you can see a spark when you
    pull a plug lead, it has a tougher time under compression, especially
    if the engine is cold.
    --

    Stewart Hargrave


    For email, replace 'SpamOnlyToHere' with my name
     
    Stewart Hargrave, Aug 22, 2004
    #4
  5. david

    Ron /Champ 6 Guest

    NOw that you mention it, our 850 refused to start after being left for
    2 weeks with the glove box light on ( OK, I did not know it would not
    go out until I tried to figure out why the battery went flat)

    Jumper cables would spin it, but it would not start. My charger was
    dead, so I bought a new one, charged it, and it started fine.
    Ron/Champ 6

    1963 8E5 Champ (Champ 6)
    1962 Lark Daytona Convertible (Boomerang)
    1995 VW Passat (Vanilla..yuk)
    1994 Volvo 850 (Tilley)
     
    Ron /Champ 6, Aug 22, 2004
    #5
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