Question about 1996 Buick LeSabre

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Car won't stay running

I have a 1996 Buick Lesabre, the car will start. Then all of a sudden die out. I can restart the car; but it will only run for a few mins. then die again. Oh and while the car is running, none of the electrical components will work. i.e. windows, locks, seat. What could be the issue here, please help..

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  • mechelle1120 May 28, 2009

    Hi Christoph535,

    Is there a way to extract the ECC code from the car without the sensor to do it? The car will die out after a few minutes no matter if its parked, running, or idiling. I just went out and checked the windows, locks, and power seat. They all work while the car is not running. But do not work once the car starts? Could this problem still be the Idle Air control valve? Thanks for your help.

  • mechelle1120 Jun 01, 2009

    Hi,

    I rented the code reader, the only code on the car was an engine misfire. The code was cleared, engine light went out. Of course the car still has the same problem.

    Someone suggested changing the coil, could this be the issue?

  • mechelle1120 Jun 01, 2009

    I hit the button by mistake :)

    Thank you for your help and time, this is so frustrating. I can't afford to spend money on parts that are unreturnable..

    Your input is very much appreciated.

  • mechelle1120 Jun 01, 2009

    I hit the button by mistake :)

    Thank you for your help and time, this is so frustrating. I can't afford to spend money on parts that are unreturnable..

    Your input is very much appreciated.

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Mechelle, If your check engine light came on, then the faulty sensor(s) should have given your ECC (engine control computer) a code. If you know how to extract codes from your car, this may provide you with the exact problem(s) your car is having. That would be my first recommendation. Based upon what you described, if the car stalls out in Park, Reverse or while idling at a traffic signal, then my first guess would be to clean or replace the Idle Air control valve. This is usually located close to the throttle body assembly. You can pick up one of these at your local auto parts store, I looked up the part for your make and model @ www.AutoZone.com and found one for $32.99 (PN: AC95150A). However, keep in mind this may not be the solution to your problem and without pulling codes, it’s like shooting an arrow in the dark. You also said that your locks, windows (electrical) will not work when the car is running, do your accessories work when the car is not running? Hope this helps.

Posted on May 28, 2009

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  • christoph535 May 28, 2009

    Mechelle, If you are interested in pulling codes, you will have to buy a basic code reader from you local auto parts store, they cost anywhere from $30-120 dollars. Also before purchasing a code reader, talk to an auto parts employee who can explain the process to you. I would not want you to spend the extra money on a code reader if your not comfortable with the process. If you are, it’s really not to difficult. The code reader plugs into your OBD-I or OBD-II port, which is usually located below your sterring column. The ECC from your car should send a “code” to the code reader, for example SP1020, you then take the code and refer to the manual that came with the code reader and locate the code in the manual, which then will tell you in text what defines the code and what the most likely problem(s) is. This is exactly what the mechanics do as a starting point. I don’t think the the accessories and the idle problem are related, but lets work on the idle problem first. I will check back in tomorrow.

  • christoph535 May 29, 2009

    Hi Mechelle, just wondering if you have made any decisions on what path you are going to take? Best of luck.

  • christoph535 Jun 01, 2009

    mechelle, I've read you most recent comment. I understand these problems are frustrating. I will look into this to see what else I can determine, if you don't hear from me tomorrow, then try again on Wednesday. Please vote for my responses if you feel I have helped you, thanks.

  • christoph535 Jun 02, 2009

    Mechelle, did the code tell you which cylinder has the miss fire? If, so, try this simple test.



    Take the spark plug wire that is connected to miss firing cylinder and swap it with another spark plug wire of similar length. Connect both wires and re-test. If the code changes cylinders to the cylinder with the faulty wire then you have a bad spark plug wire. This may not be the problem, but it's one less factor to rule out. Please vote for this if this has been helpful.

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