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  1. #1
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    Corvette(s)
    1999 White Coupe

    Default 99 corvette won't start

    I was driving my 99 corvette today and it died once while coming to a stop, started back up but when I got to my destination, went in for about 15 min. and then tried to start it to leave, it wouldn't start. It sounds like it's going to start, but don't quite make it. It almost sounds like it is flooded, but you don't smell gasoline. I don't see any codes or any of the gages moving. It don't sound like the battery either.

    I'm thinking it might be an electrical problem because a couple of weeks ago I had problems with the lights coming up on their own. They went back to normal, then this. The only thing that showed up was the Service Engine Soon indicator, which I had the dealership try to figure out before and they came up with nothing. Somehow all of this must be related to the same issue, I'm thinking.
    I had to leave the car in the parking lot until I can try it tomorrow. This is not an everyday car and it has about 78000 miles on it.

    Any ideas???

  2. #2
    Technical Writer for Internet & Print Media
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    71 95 04 12

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    If you turn the key on but don't try to start, do you hear the fuel pump run for 2 sec. or so then shut off?

  3. #3
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    1999 White Coupe

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    I'm not sure as it was a noisy parking lot, but I don't think so. I had to leave it in the parking lot overnight but will check it out tomorrow. Are you thinking fuel pump? That did cross my mind.

  4. #4
    Member Huskerman's Avatar
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    Corvette(s)
    2010 Grand Sport Coupe Z16 Blade Silver

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    Sounds like it could be fuel related. When the ck engine lite came on it had to throw a code I'm thinking, did the dealer say what it was?

  5. #5
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    1999 White Coupe

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    He told me it was an emissions sensor and that it was causing my car to run rough. I got it out on the freeway and really got on it and the rough idle he was talking about went away and so did the light. However the light came on about 3 tanks of gasoline later. I then thought it was the gasloline causing it because if I filled up at the same place it ran fine but if I changed up it ran rough again.

  6. #6
    Technical Writer for Internet & Print Media
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    Fortunately, C5s have an on-board display feature for fault codes stored in any of the car's computers which send data.

    I can't remember the exact procedure and I'm not where all my service data is located so I can get it out of the Factory Service Manual, but you access fault codes by pushing a sequence on the DIC buttons.

    I'm sure you can find the procedure elsewhere on this site.

    Use that to get all the fault codes which are set and post the info.

    As for the fuel pump, once you get the car where it's more quiet, if you don't hear the pump run for a couple of seconds after you turn the key to on, I'd run the fuel pressure tests listed in the Service Manual.

  7. #7
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    1999 White Coupe

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    We went to pick up the car and it started right off. Drove it back the 25 or so miles and brought it to the dealership to see what they say. It died twice on the way back, but both times started right off. There was a message of reduced engine power came on and the traction control message came on too. We will see what they say.

  8. #8
    Member Huskerman's Avatar
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    Keep us posted........I hope it is a fuel related issue.......I hope it is not something like a BCM......Body Control Module......they can do wierd things when they start to go....

  9. #9
    Moderator Toms007's Avatar
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    I agree with Huskerman. Hoping for the best. H-man, looks like you got it!
    ​Formerly known as Toms01
    2007 Atomic Orange
    Coupe Cashmere/black interior

    2005 CruiseFest Attendee (Bowling Green, KY)
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    Visit the members GuestMap and show us where you live.

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  10. #10
    warren s's Avatar
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    1999 Torch Red Coupe

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    I am thinking / hoping its something as simple as a bad grounding point under the hood. I dont think a fuel issue would cause a traction control error message.

    Lets see how it turns out...

  11. #11
    Member Huskerman's Avatar
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    Quote Originally Posted by Toms01 View Post
    I agree with Huskerman. Hoping for the best. H-man, looks like you got it!

    Ya.....took me awhile......I sent the email to photobucket and then copied it and put it where I thought it should go and just like magic....I sent you another that was darker but I think I will stay with this........Thanks so much for the help..........marcus

  12. #12
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    1999 White Coupe

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    ok, the technican called with an update. He said that the codes from the car indicate a problem with the throttle body. The problem is it is intermittent so they are still checking it out. Anyone else had problems with the throttle body?

  13. #13
    warren s's Avatar
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    No, never had a problem with the TB.

    It does have an electric component in it to actually open and close the throttle blade. I would imagine the check engine light would be on and the code would be set.

  14. #14
    Member Huskerman's Avatar
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    Quote Originally Posted by Corvette Gal View Post
    ok, the technican called with an update. He said that the codes from the car indicate a problem with the throttle body. The problem is it is intermittent so they are still checking it out. Anyone else had problems with the throttle body?

    Do you think you can get the codes? If you can and he should be happy to tell you, you can post them and then we can see what's going on..........

  15. #15
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    1999 White Coupe

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    My husband called this afternoon, they told him they think the battery is bad....(I don't think so..but the paperwork for the battery is in the car) We are going up there to talk to them in person tomorrow.

    We will probably bring it to another place in Houston called Vette Tech that was recommended to us. We'll see. I'm not convinced the tech's at this place know a lot about vettes!!

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