Question about 2000 Ford Expedition

5 Answers

Why is the battery light on in my 2000 Ford expedition?

I changed out the starter, alternator and battery, checked for broken wires someone told about it might be starter relay. All are new except starter relay what else can I do to fix this

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  • Ford Master
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A Simple Preliminary Car Starting Procedure
If your car won't start, try this procedure:

  • Check the battery cable connections:
Make sure the positive cable, makes a good connection at the battery and at the starter. Make sure the negative cable makes a good ground connection at the battery and (preferably) at the engine.
  • Check the battery the simple way, like this:
Turn on the headlights, then try to start the car.If the headlights do not dim or go out, then the battery is likely ok.
  • Check the starter and solenoid:
If the wiring looks ok, then look at the starter solenoid for a good connection, and proper voltage at the starter(10 volts minimum while cranking).
If the starter spins and no crank, the problem is most likely the Solenoid's bendix gear is stuck.
Have someone hit (not too hard) the starter while you try to start the car. This usually works by dislodging a stuck bendix gear.

Posted on Apr 14, 2015

  • danoyachtcap
    danoyachtcap Apr 14, 2015

    I think the battery light may be a warning that the battery is not charging...but the other tests seem to indicate the alternator is ok.

  • danoyachtcap
    danoyachtcap Apr 14, 2015

    With the engine running, what voltage do you read on the battery? It should be at least 13.6 volts to indicate the alternator is charging ok.

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  • Ford Master
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What not try the obvious......try new battery cables. I had a similar problem a couple of years ago and my ground cable was bad. This is a 2000 Ford Expedition hmmmm 15 years with the same cables is noteworthy.

Posted on Apr 14, 2015

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Go to the local auto parts store and have them test your charging and starting system. It's usually free. Stop hanging parts on it... Most likely your alternator has quit working but proper testing is required to determine this...

Posted on Apr 14, 2015

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Replace starter solenoid

Posted on Apr 14, 2015

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  • Master
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Posted on Apr 14, 2015

  • Jeff Armer Apr 14, 2015

    I agree with you some of these people have know idea what there talking about ! You never ever disconnect battery cables off a running engine . A voltage spike can take out a PCM quick like. You know some of answers from these dumbies about battery an cables don't have a clue what they are talking about either ! iF IT STARTS AN RUNS IT'S NOT THE BATTERY OR CABLES ! THAT LIGHT HAS TO DO WITH THE CHARGING SYSTEM !

  • Jeff Armer Apr 14, 2015

    Did you read the one from the red neck Replace the starter solenoid , Someone should monitor this site an get these bozo's off here if they don't know what there talking about !

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Hi:
The battery light is telling you that you are running off the battery,and you have a problem with your charging system. An easy way to check your alternator is to get a volt meter, and measure the voltage of your fully charged battery. with your expedition not running, it should read about 12.6 volts. When you start your expedition, it should read approx 14 volts if your alternator is working properly.
Of course, check all of your connections first, and most auto parts stores will check your alternator out for free, so they might have a chance to sell you one!

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I recently changed my battery on my 2001 expedition and now I have starting problems and I don't know what to do...it very random but today I would assume it's the temperature...any suggestions


Could still be a number of things. If the jump works, first order would be to get the system checked. That would eliminate a couple of possibilities of alternator, battery, and wiring. It allows all the items listed to be tested under a non-load and loaded condition.

If those are good then start leaning towards the starting system. Starter/starter solenoid, ignition switch on column.

Never hurts to have a battery charger around or one of the new starter amps that are available.

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