+ Reply to Thread
Results 1 to 10 of 10

Mitsubishi: 1991 300GT SL stalls when driving

  1. #1
    FSG
    Guest

    1991 300GT SL stalls when driving

    My 1991 3000GT SL 5-speed stalls suddenly when driving. At all speeds, the
    Revs just go to zero. Normally I can restart it right back, but sometimes
    it won't.
    I had my engine replaced recently, I had about 135K miles and the new
    engine it is supposed to be about 40K. It runs strong until that happens.
    Any ideas on where to look first. I replaced already the fuel pump and main
    relay. The timing belt was done when the engine was installed, that was
    about 1 month ago. Any help is greatly appreciated. Thanks.

  2. #2
    Stewart
    Guest

    Re: 1991 300GT SL stalls when driving

    "FSG via CarKB.com" <CarKB.com> wrote in message
    news:com... 

    Then those were not the problem. Keep the parts as spares. It sounds like an
    electrical problem thats surfaced when the everything was moved around
    during the engine replacement.

    When the engine stalls, does the Check Engine light come on? Any other
    electrical symptoms? I'd R/R all the engine connectors, giving them each a
    squirt of wd40. Find your ECU (center console or RH pillar), and take it
    out. Open the can and look at the electrolyic capacitors. Any of these
    leaking? Is there a fishy smell?

    Stewart DIBBS
    www.vysor.com/lancerproject



  3. #3
    FSG
    Guest

    Re: 1991 300GT SL stalls when driving

    Yes the Check Engine light comes on when happens. Of course if I am driving 
    looks to me that you are in the right direction about something electric is
    going on. I will check what you suggested and see from there. Thanks. I
    will post what I find for reference to others as well.

    --
    Message posted via http://www.carkb.com

  4. #4
    Nobody
    Guest

    Re: 1991 300GT SL stalls when driving

    What is the code it throws? That will save some time. You can borrow a "1G
    logger" from any 3K or DSM group in your area. My logger works with DSMs and
    3Ks, so I know it's doable. Where are you and someone (or I can point you
    to) will be able to help.

    --
    Todd Honea

    "FSG via CarKB.com" <com> wrote in message
    news:com... 
    driving 
    is 



  5. #5
    FSG
    Guest

    Re: 1991 300GT SL stalls when driving

    I haven't put it to a logger yet. I am taking it to my mechanic tomorrow
    and we'll try your suggestions here. I am in central Texas, USA. The
    mechanic insists that he have seen fuel pumps failing even when they are
    new, so we have a few things to check on. Thanks a lot to all of you guys.
    FSG.

    --
    Message posted via http://www.carkb.com

  6. #6
    Stewart
    Guest

    Re: 1991 300GT SL stalls when driving

    "FSG via CarKB.com" <com> wrote in message
    news:com... 

    Not impossible, but very unlikley, as a fuel pump that stops working results
    in the engine slowing down and then stopping as the fuel pressure drops off,
    not just cutting out instantly.

    Stewart DIBBS



  7. #7
    TG
    Guest

    Re: 1991 300GT SL stalls when driving

    try driving it with the gas cap off, could be a pinched vent line or the
    evaporative emissions canister is full of fuel...you don't always try to
    squeeze in more gas after the pump shuts off do you? TG

    "FSG via CarKB.com" <com> wrote in message
    news:com... 



  8. #8
    Nobody
    Guest

    Re: 1991 300GT SL stalls when driving

    I'm betting a CAM angle sensor failure or ECU caps. I can't remember if the
    TDC code is stored or not. You may have to have the logger connected when it
    happens.

    --
    Todd Honea
    "FSG via CarKB.com" <com> wrote in message
    news:com... 



  9. #9
    FSG
    Guest

    Re: 1991 300GT SL stalls when driving

    I can't wait for the weekend to test all the interesting things that you
    guys have posted here, something that I noticied and maybe it have nothing
    to do with it but anyways is that when that happened I was using the air
    conditioning and as a rule I always turn it off before shutting the engine
    off, but in a couple of cases I shutted the engine with the AC running (the
    car have a digital ac, not the dials) and the turned the engine on with the
    AC on. Well I have been driving short trips without AC and nothing have
    happened so far .... so I was just wondering if that sounds like a clue to
    somebody. I will drive with the gas cap off and see and some of the other
    suggestions as well, by the way where can I get a 1G logger in my area,
    central Texas USA. Any ideas? Thanks again.

    --
    Message posted via http://www.carkb.com

  10. #10
    Nobody
    Guest

    Re: 1991 300GT SL stalls when driving

    When the AC is on, the ISC is stepped up to allow for a higher idle. I've
    never owned an auto, so I don't know if that is valid with them. If so, you
    could add a bad ISC as another possible problem.

    --
    Todd Honea
    "FSG via CarKB.com" <com> wrote in message
    news:com... 
    (the 
    the 




 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Search Engine Friendly URLs by vBSEO 3.6.0

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48