Question about 1999 Pontiac Montana

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My 1999 Pontiac Montana starts fine, and then sometimes dies

Our van starts fine, but then sometimes it immediately dies. We turn the key off and then restart it and it is fine. Most of the time, however, it starts fine, and then keeps running. We don't have any problems with it when it is running. But also, sometimes, we go to start it and the battery is completely dead and has to be jumped. We are just trying to find out what could be the problem so we can find out how much it is going to cost to get fixed. Has anyone else had this problem and might know what it is?

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  • Kaci Lima May 06, 2012

    I now know that everytime the battery completely dies and has to be jumped we find out that, either one of the kids have left a light on inside or a door hasn't been shut all the way or something like that. I think this might be two seperate issues. For one thing, I think we need a new battery since it dies if a door isn't shut all the way, but I don't know about the other issue.



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The starting /keep running issue is probably a slow IAC (idle air control)Next time turn the key on,wait 3 or 4 seconds then start,if it keeps running after that wait time everytime,it most likely is the IAC,,,,,,no big deal.
How long does the van sit when it has a dead battery?

Posted on May 28, 2017


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Posted on Jan 02, 2017

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SOURCE: starts then dies

Have you changed the spark plugs lately? There are three things that make the car go... fire (Spark) fuel and compression. Does it do this on moist mornings or always? Or it could be Losse or Damaged wiring in the ingition system. Or Intake manifold leaks. Make sure all monting nuts and bolts are tight and vacuum hoses are attatched right and in good condition. Hope this helps.

Posted on Mar 11, 2009

  • 73 Answers

SOURCE: 1999 pontiac montana transport fuel problem

can you jumper the relay or find the red wire by the battery that is nit connected it will have a green connector jump it to positive and see if pump comes on

Posted on Apr 16, 2009

  • 2007 Answers

SOURCE: 1988 Pontiac Fiero will not start!

Starter sticking.

Posted on May 19, 2009

  • 410 Answers

SOURCE: 1992 pontiac starts, quietly dies and backfires loudly on restart

It sounds like to me you are having problems with your fuel injectors.  In situations like these there are soooooo many different variables and possible problems, but the fact that the car is backfiring makes me believe that you are getting too much fuel in because that is what makes are car backfire.  When fuel makes it to the cat converter or muffler it will burn there and cause the backfire.  My suggestion would be to start the process of elimination with a good fuel injector cleaner.  The only one that recommend is called Greased Lightening and can be purchased at Napa and O'Reilley auto parts.  If you don't have one of these near you I would go with Techron.  Let me know if I can help you with anything else.  Thanks for letting me help you with your problem and I would appreciate an honest rating on the help that I gave you.  Thanks for using FixYa!

Posted on May 20, 2009

  • 538 Answers

SOURCE: 2000 pontiac bonneville wont start

It sounds like a bad connection somewhere, check the battery cable connections for corrosion and tightness, both ends. It could be the starter, starter solenoid, starter relay, neutral safety switch or ignition. Try moving the shift lever to the "N" position and see if that helps. When you say you have a dead key, do you mean you have no dash lights, (oil pressure light, battery light, things of that nature) no clicking, no nothing?

Posted on Jan 02, 2010

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Check out for more information on your problems. There are others who have had similar experiences

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