Question about 2000 Buick LeSabre

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I have a 2000 lesabre custom that started having issues starting on new years eve. It was below zero and I had started it with no problem just to make sure my battery would have enough power because the battery is kind of weak from something draining it over and over again. I had installed a battery cut off that is working fine. but back to new years. i let it run for 30+ minutes then shut it off. 2 or 3 hours later i was going to go home. turned the ign. car turned over would not start so i drained the battery trying. then started jumping it off another car. after a while i gave it gas got it started and if i let off the gas it would die. i kept on the gas for a while after it warmed up to see if it would keep running. it would not so i finally gave up and let it die. then for the heck of it i tried to start it with out giving it gas and it started right up and ran fine. but after that i would have to give it gas to start it everytime with starter now spinning off and on while ign in start position. but would always end up starting. the last 4 or 5 days its been below zero and no matter how hard i try i cant get it started. i know it has spark to the coils. i tested #5 and #4 i think. fuel pump kicks in. it will fire from time to time but sounds like its only one cylinder at a time. my gf is pregnant and due on valentines day we have three more appts. for her before then and need to get the car running for the appts. and if she goes into labor. not to mention i am job hunting and need to get around to turn in resumes and what not. thanks for looking this over and any help you can give.

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  • 7 more comments 
  • bushy420
    bushy420 Jan 23, 2013

    any more info needed. just ask i might know off hand. i have been messing with it for a while now. i am hoping that the not starting and the hard starting are from the same issue and not two things i have to fix. but thanks again.

  • bushy420
    bushy420 Jan 23, 2013

    it hasnt started for days and does turn over. i have nothing to check for fuel pressure.spark plugs are maybe 3 months old.

  • bushy420
    bushy420 Jan 23, 2013

    i was thinking that it could be a sensor of some sort. but not sure. i believe it can get fuel but is not getting the right amount

  •  Stephen
    Stephen Jan 23, 2013

    You may need to rent or borrow a fuel pressure gauge from an auto parts store. You need to know what the fuel pressure is before and after the first crank of the day. If it is a lack of fuel, you should be able to spray cleaner or starting fluid into the throttle body and boost it enough to make the engine want to start.

  •  Stephen
    Stephen Jan 23, 2013

    Normal fuel pressure should be around 25-35 psi after sitting overnight, then the pump runs for 3 seconds when you turn the key on to boost it up to 35-45psi.

  • bushy420
    bushy420 Jan 23, 2013

    it will be a while till i can get into town. i live 10 miles from the nearest parts store. i know once this guy i know who rebuilds wrecked cars had to test some kinds of fluid pressure and the ford company said you need a special gauge that only they have and we used a tire gauge and it worked fine. do you think i could do that here? i was trying to start it today and it would fire every once in a while and if i would give it gas it would back fire every once in a while.

  •  Stephen
    Stephen Jan 23, 2013

    Ford and GM schrader valves for the fuel line are different sizes. Most parts stores have the gauge to loan or rent.

  • bushy420
    bushy420 Jan 23, 2013

    thanks. but it will still be a while till i can check pressure. if there is anything else i can do until then that might help get an idea i will do so

  • bushy420
    bushy420 Jan 24, 2013

    the coil pack plate was corroded as hell. i filed it down and put some wd-40 on it. i thought that would be it. it wasnt. but i have heard it could be a coil pack.

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  • Buick Master
  • 21,873 Answers

I'll start by saying folks like me that answer questions are all volunteers. Nobody gets paid. So we pick and choose the questions we answer.
I'm not sure I am following your question / story.
Are you saying the engine will crank but not start sometimes ?
Is the check engine light on when the engine does run ?
Have you checked fuel pressure with a gauge before and after cranking the engine ?
Have you replaced the spark plugs in the past 12 months ?
When the air temp is below freezing it takes twice as much spark and fuel to start a cold engine. So any little problem can become huge.

Posted on Jan 23, 2013

  • 1 more comment 
  • bushy420
    bushy420 Jan 23, 2013

    it hasnt started for days and does turn over. i have nothing to check for fuel pressure.spark plugs are maybe 3 months old.

  • bushy420
    bushy420 Jan 26, 2013

    i got it to start a lil bit ago when i pulled #5 plug wire to see if it had spark. couldnt tell if it did have spark. but i am very confuzed now

  • bushy420
    bushy420 Feb 05, 2013

    it is the upper intake gasket. but i am wondering what is the tube sticking up from inside the manifold that i see after i took off the throttle body? it is melted i dont know if it comes with the manifold and gasket i am getting or if i need to get it seprately.

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SOURCE: 1992 buick lesabre starts fine.

You check the coils with a ohm meter. They should 6-8 thousand ohms at the spark plug connections. One lead to one spark plug connection and the other lead to the other . It's not likely a coil for stalling. If coil , Your car can still run on four cylinders. It can be a ignition module. It fails when it gets extremely hot. The module is located under the coils.

Posted on Jul 19, 2008

SOURCE: Bought a new battery and my 1992 buick lesabre still won't start

i had the same problem on my '92 Lesabre ltd. All you need to do it is get the rust off your battery cables, use the wire brush to scrub the contact surfaces. also use a wrench to tighten the bolt to the battery, take precaution as to not to tighten too much , it might beak the battery threads.

Posted on Sep 29, 2008

  • 1 Answer

SOURCE: battery drain

Check the (red) + battery cable where it crosses over the metal power steering lines at bottom of radiator....very hard to detect .....over a peroid of time the insulation will wear thru....making contact with steel lines causing a battery drain just as you have indicated...clean cable in this area....use a inspection mirror and a flashlight.....the insulation will be worn off on underside of cable...you will be able to feel worn area with fingers....wrap area well with electrical tape ....Good Luck...

C. E. Cecil

Posted on Jan 05, 2009

  • 1 Answer

SOURCE: 99 Buick Century won't start

spark plugs known problem when cold

Posted on May 08, 2009

  • 87 Answers

SOURCE: 1999 Buick Regal GSX won't stay running......

It's probably the mass airflow sensor and/or oxygen sensors.

Posted on Jun 18, 2009

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