Car will not run unless booster box is hooked up to battery, battery will not charge but have BRANDNEW battery, starter, and alternator (not rebuilt and checked). Any suggestions. Car is 97-99 Ford Taurus 3.0 6 cylinder.
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1ST make sure the oil level is up to spec. make sure all connections are connected & either charge the battery or boost the battery. If a boost doesn't do the trick, try leaving the booster cables hooked up with the other car running for a few minutes & try starting again. Try that battery charge next. If no luck, u may need a batt, Have a battery voltage test done / load test & starter draw test when fully charged. If u get it running have the alternator checked & ckd for shorts. Good Luck
Make sure the battery has a full charge. If you use a digital multimeter across battery posts, everything off, the generic spec for a full charge is around 12.6 volts.
If your using a jump box or charger, hopefully the gage on the tool will tell you something?
If you want to check the starter motor or wiring circuits at the starter motor, we can do that. If you try that, make sure tranny is in park or neutral and functional parking brake is set.
could be a bad ignition switch. you need a volt meter or at least a test light, to see if you are getting juice to the starter while the switch is in the start position, you should have around 12.6 volts going to the starter
There should be a solenoid/regulator on the firewall that's connected to battery wires (possibly $13 part), and starter wire..a tap on that like you would a starter when it gets stuck; unless it's built in with your alternator or generator...the only other thing I can think of, is that you have a loose connection, or a bad item/rebuilt item? Starter and alternator new? A place like Sears Auto or a mechanic who has a computer to check charging system could give a better idea...good luck..
A bad voltage regulator could cause the problem. Assuming the alternator is working correctly. Jump the vehicle with the battery disconnected and then disconnect the jumper cables. If the vehicle dies your voltage regulator or Alternator are bad, some vehicle have separate regulators from the alternator, if it continues to run the alternator is good but the voltage regulator is probably the cause.
Battery and charging system needs to be tested. If the alternator quit you can only run so long on the battery untill it runs out of juice. Boost the truck and let it run for a couple minutes ( remove booster cables ) then remove the negative cable from battery.. if it keeps running the charging system is fine and the battery is to blame.
There is only one wire common to the alternator and starter and this is the main+ wire which goes from the alternator down to the main feed terminal of the starter solenoid from there it runs to the battery + terminal.If you are replacing the cable use one of the same diameter......
Alternator is not charging, have system checked at a local Autozone or Kragens for free. then you can purchase necessary replacement parts at the same time..
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