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Alternator tests good but will not charge on 1994 ford bronco

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Check the green/red wire at the alt it should have 12v with key on

Posted on Dec 11, 2009


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My 1994 bronco was running fine then suddenly cut off. it turns over fine but will not start

First check to see if your timing belt or chain is still there, it could have broken. If it's still on there then see if your battery has a good charge or if its low you may need to replace the alternator.

Jan 03, 2015 | 1994 Ford Bronco

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1987 ford bronco will not charge on cold mornings

check the output of your alternator.and your battery .and clean and dry your battery posts.

Dec 16, 2013 | 1994 Ford F250 Supercab

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1995 FORD Bronco wont charge battery&Alternator

need to check all wiring for breaks bad connections and blown fuseable links..still get the thing at autozone or advance..may have bad main fuse in system..

Feb 09, 2013 | Cars & Trucks

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I have a 1994 ford taurus station wagon, the battery won't stay charged, the confusing thing is that the inside panel and door light works

you have a faulty alternator by the sounds of it, try this simple test, : test the voltage of the battery with the vehicle off with a simple multimeter, it should read just over 12v then test it with the car running, it should read around 14-14.5 volts if it still only reads 12v then your alternator needs replacing.

Sep 13, 2012 | 1994 Ford Taurus

1 Answer

1992 bronco will not charge. New alernator, new battery, new 3/0 ground wire from battery to frame, frame to engine block, frame to alternator. harness from alternator to battery ohms good (.4ohms) what am...

On some of the earlier fords. If the bulb is blown in the instrument panel. It will not complete the circuit to charge. Turn your key on with the engine off to see if the red light comes on that shows the battery.

Jun 27, 2011 | 1992 Ford Bronco

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Hey i have a 1993 ford bronco four wheel drive with the 5.8 engine. I have had the alternator checked and its good and the battery is good but it will not charge. Its running on just the battery, Do you...

You need to check your alternator circuits. If the alternator itself tests good (I am assuming it was removed from the vehicle and taken to a parts store for testing) then the only thing left are the alternator circuits themselves. The large BLACK/ORANGE wire needs to have direct connection to the battery. This connection needs to be clean and tight with little or no resistance....This needs to be checked with an ohm-meter to verify. The rest of the circuits depend on what your vehicle is equipped with. 1993 Ford Broncos were originally equipped with two different charging systems. One had an integral regulator (regulator built into the alternator) and an external regulator. (voltage regulator mounted on the fender, separate from the alternator.) If you have the external regulator, that is what I would suspect as the cause of your problem. If you have the internal regulator, then I would check for battery voltage on the two BLACK/ORANGE wires and the YELLOW/WHITE wire at all times, and the LIGHT GREEN/RED wire should have battery voltage only with the key in the ON position.

Apr 09, 2011 | 1993 Ford Bronco

1 Answer

Instrument panel battery light, what indicates?

It indicates low or too much voltage. It's either a low battery, a voltage regulator that is going out (it's built into the alternator), or an alternator that is not charging the battery back up. If you know for a fact that the battery is good (not old and it holds a charge ok), pull the alternator and take it to a local auto parts store. Most of them will test it for free.

Jan 18, 2010 | 1991 Ford Bronco

1 Answer

Charging system

You Can Test An Alternator By Starting The Vehicle And Then Unhooking The Battery. If The Vehicle Stalls Then The Alternator Needs Replacement. A Second Battery Would Need A Source Of Charge So Unless You Want To Fork Out A Lot Of Money No.

Jan 04, 2009 | 1988 Ford Bronco

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