Car cranks but won't start

Discussion in 'General Motoring' started by unilynx, Oct 14, 2006.

  1. unilynx

    unilynx Guest

    I am not very mechanically inclined by any means. But I'm trying to
    figure out why my Volvo won't start right now. It's a Volvo 240D 1986.
    It's been very wet out lately and it stalled on me the other day. I
    went to start it this morning and it wouldn't budge. The engine is
    cranking, I can hear it, but it just doesn't start. Thinking about it
    being low on gas I went to the store and put in a few extra gallons
    plus some of the dry gas to no avail. If anyone can help me out I'd
    appreciate it.. Otherwise I guess I'll call a tow truck! :)
    unilynx, Oct 14, 2006
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  2. unilynx

    Marvin Guest

    It could be moisture condensing on electrical parts. I had
    a Peugot with that problem. When I was at home, I could
    blow warm air from a hair dryer over the distributor, and
    start the car. On an older car, the wiring can make it hard
    to start in wet weather. Dirt collected on the wires lets
    moisture build up.
    Marvin, Oct 15, 2006
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  3. unilynx

    Mr. V Guest

    It could be a fuel pump relay, or fuel pump.
    Mr. V, Oct 15, 2006
  4. unilynx

    James Sweet Guest

    Well you need fuel, spark, and compression for it to run. Assuming the
    cranking sounds normal you probably have compression so the next thing
    to do is check to see if you have a spark, if that is present then you
    have a problem with the fuel system. Report back what you find out and
    we'll go from there.
    James Sweet, Oct 15, 2006
  5. unilynx

    Mike Lindsay Guest

    I used to have to whip the mag out of my car and shove it in the oven
    for 20 minutes or so on damp days before it would start.
    Mike Lindsay, Oct 15, 2006
  6. unilynx

    unilynx Guest

    the link above is a picture of a crack i noticed...

    not sure if this has anything to do with it or not.. but i've had the
    car towed and it seems like it must be something to do with the fuel
    pump.. it cranks and theres a spark so..
    unilynx, Oct 15, 2006
  7. unilynx

    James Sweet Guest

    That's the preheat tube, I usually just yank those and toss them, if the
    airbox thermostat fails the hot air from that tube will kill the
    expensive AMM and unless you live in a cold climate the preheat tube
    does little.
    James Sweet, Oct 16, 2006
  8. unilynx

    unilynx Guest

    Oh okay thanks. Well I live in Maine and we have pretty cold winters,
    but if it's not a huge thing I probably won't worry about it..
    unilynx, Oct 16, 2006
  9. unilynx

    unilynx Guest

    Looks like it was the Fuel Pump Relay.. That's what my mechanic told
    me. Total came to about $120

    Thanks for everyone's input! :)
    unilynx, Oct 16, 2006
  10. unilynx

    clay Guest

    ....except cause you to fail the smog test if it's cracked, torn, or missing.
    clay, Oct 16, 2006
  11. unilynx

    clay Guest

    For future reference:
    In some model years (iirc), the hazard signal relay is the same unit as
    the fuel pump relay.
    Check your manual to confirm but might save a towing bill in the future.
    clay, Oct 16, 2006
  12. unilynx

    Mike F Guest

    As far as I know there's no Volvo like this. All injected models up to
    '77 and LH injected models up to 1984 do use "plain normal" relays that
    are used elsewhere, but all the rest use specific fuel pump relays. Of
    course I'm not sure about non North American models, but I'd assume
    they're the same.

    Mike F.
    Thornhill (near Toronto), Ont.

    Replace tt with t (twice!) and remove parentheses to email me directly.
    (But I check the newsgroup more often than this email address.)
    Mike F, Oct 18, 2006
  13. unilynx

    unilynx Guest

    As far as I know there's no Volvo like this. All injected models up to
    Yeah, my mechanic said that it was not the same. It was specifically a
    fuel pump relay.
    unilynx, Oct 18, 2006
  14. unilynx

    clay Guest

    I'm not clear on what you're saying here.
    First you say you don't know of any Volvo like this.
    Then you say some injected ones up to '84 use relays that are also used
    elsewhere. Sounds like you're contradicting yourself...*g*
    I guess what you're saying is, later models like the OP's '86 are not
    like this.
    I'd have to agree, after chasing my fuel problem, that the ones that
    have the relay on the left of the doghouse in the driver foot well have
    specific relays. Those like my '83 that have two relays behind the panel
    under the glove box, use a generic relay that could also be used elsewhere.

    What I know is, all I could say was sonoma beach when I read that there
    was another relay just like my fuel pump relay under the dash that I
    could have switched and maybe got home on my own wheels.

    I'll backtrack and find where I saw this tidbit. I didn't confirm it on
    my '83 as it requires tunneling into the dash but if the trade off were
    another $160.00 towing bill, I think I'd start digging.
    clay, Oct 18, 2006
  15. unilynx

    Mike F Guest

    The statement was the fuel pump relay is the same as the hazard relay,
    which it's not. It can be the same as other relays, depending on the
    car, but not the hazard relay.

    Mike F.
    Thornhill (near Toronto), Ont.

    Replace tt with t (twice!) and remove parentheses to email me directly.
    (But I check the newsgroup more often than this email address.)
    Mike F, Oct 19, 2006
  16. unilynx

    Clay Guest

    You're right. It's not the hazard relay, it's the central lock relay...
    Clay, Oct 20, 2006
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