Question about 2003 Ford Excursion

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Will my car still start if it has a blown alternator fuse but a brand new battery?

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Should. unless that fuse also runs something else that is critical to the engine starting or running then it should start right up if the battery is fully charged. How long it will run like that is another matter though.

Posted on Oct 05, 2009

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Battery won't stay charged, it is brand new battery, alternator has been checked and it is good, blown BTN 60 watt fuse, on 1994 Mazda Protege.


The 60amp fuse probably is in the circuit between the alternator and the battery. Which would be why the battery is not getting charged.
Someone would need to check for a short in the wiring between the alternator and the battery.

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Ford v10 triton engine alternator won't charge brand new


I had a similar problem on my 98 Tioga (Ford v10). Turnd out to be just a blown fuse in the cab (wich controls the alternator's regulator.) First, confirm its the charging system and not the battery it's self. To do this, start the engine and take a voltage reading at the battery. It should be above 13 volts. If you don't have a tester, with the engine running, disconnect a battery terminal. If the engine stalls, it's proff the alternator is not out putting as it should. Check for a blown or missing fuse. Anything labeled "intrusment cluster" or "Alt" (maybe 14). If the fuses are ok you'll likely need to replace the alternator it's self. On those engines it's not hard to do. Only takes about 20 min and the the alternators are around $130. But defiantly check the fuses first.

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1 Answer

I just got a brand new battery for my 96 mercury sable and the battery light is on and my radio wont work


usually if a battery light is on it is a sign that the alternator has went out, start it and take the negative battery cable off while its running, if it dies the alternator is bad.. as far as the radio, that has nothing to do with it, most likely a fuse blown.

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New alternator wont hold a charge is there a special fuse for the alternator if so where is it located. 2 brand new alternators and batteries so far


If you have a fuse it will be in the power distribution center near the battery main fuses and relays are inside.
Check the charging system with a volt meter right at the battery. Battery standing charge should be no lower than 12v if charging you should read between 13 and 14 volts running, about 13 with all electricals turned on. If not, the alternator isn't working OR the regulator has failed. (some regulators are part of the main computer but you need to check which system you have. AND do check for fuses.
If charging system is working you may have a system draw that is pulling the system down overnight. Check that with an ammeter between either cable (removed from battery) and battery connection...pull fuses one by one till draw disappears then check components in that system. Don't be concerned with "low Draw" items such as radio that always pulls something to keep memory and clock working.

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The FuseLink is blown. It is a 100 AMP in-line fuse on the red wire from the alternator.

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Charging sytem light came on but battery and alternator are brand new.


CHECK ALTERNATOR VOLTAGE OUT PUT AT BATTERY USING A DIGITAL VOLTMETER.WITH ENGINE RUNNING IT SHOULD BE 13.5 TO 14.5 VOLTS.IF NOT YOU HAVE A BLOWN ALTERNATOR FUSE.OR DAMAGE WIRES TO ALTERNATOR.IF VOLTAGE IS OVER 15 VOLTS NEW ALTERNATOR HAS FAULTY VOLTAGE REGULATOR.

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Taurus not charging.brand new alternator.battery light not on.a diagram would be helpful.


It's possible the main fuse is blown. Have the battery fully charged and start the engine. With a digital volt meter, check to see if you have 12 volts going to your alternator (the large wire on your alternator) If not, the main fuse is most likely blown. The main fuse links your battery positive cable to the alternator 12 volt supply cable. It is probably mounted on your fuse box but probably won't be listed in your fuse box layout. Unbolt the battery and alt wires going to the fuse and check for continuity, ohms should be 0 or close to it. So now that you spent about $300 on a new battery and alternator, you find out it was a $5.00 fuse!

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