Question about 2000 Buick LeSabre
I have seen this problem many many times. It is either the battery has a shorted internal cell, causing a restrictive amp supply to the starter or there is a bad/corroded connection. This is the primary circuit of your vehicle, and there is not much science too it. Most times a battery terminal looks ok, but when a starting problem arises, they are over looked or considered good. Take a volt meter and place the meter on the outside of the bat terminal and place the other end on the post of the terminal and read the voltage (while it is connected of course,don't remove them). It should read zero. If not, cut off the terminals and replace them. Also, if your vehicle reads the battery voltage that is below 10.5 volts, it will shut the engine down. This is because the PCM (computer) monitors this voltage, and when it is too low, it knows there is not enough voltage to power the electronic components....then shuts it down. Let me know what you find.
Posted on Jul 19, 2010
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Posted on Jan 02, 2017
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