Question about 2007 Hyundai Santa Fe Limited

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Ford expedition 4wde not engaging. fixed a broken plastic coupler in vacuum line going to vacuum reservoir behind battery box and also had to replace 4wd vacuum engagement solenoid on firewall next to battery box.

Posted on Feb 13, 2014


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: 2002 sonata 2.4l battery dash light on. replaced alternator. Still not charging

I don't know if your car has an integrated regulator or not; some house the regulator in a section of the alternator case, others mount it remote from it. The regulator monitors the load and battery voltag,e primitively but effectively, and controls the current flowing through the field winding of the alternator to ground, changing the magnetic field intensity and consequently the voltage output of the alternator. The 'hot' end of the field is internally connected to the + output, the 'cold' end is controlled by a transistor inside the regulator which, in turn, is controlled by circuitry monitoring the system voltage.     Some alternators can be tested by sticking a wire through a specified opening, actually shorting the controlled end of the field to ground briefly, while monitoring the voltage across the battery, doing this though for seconds only. This essentially bypasses a suspected defective regulator; this causes the output voltage to rise instantly to its maximum of ~17 volts if the alternator is OK.
I don't recommend poking a wire at random into an available opening so having a service manual (Haynes-Chilton) would be nearly mandatory.

Posted on Oct 03, 2008

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SOURCE: Electrical Issues

You can access wiring diagrams at after registering (vehicle by VIN). After registering, go to ETM (Electrical Troubleshooting Manual). You'll need to be using Windows & Internet Explorer.

Posted on Jun 05, 2009

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SOURCE: Replaced alternator and battery. Battery

I am having the same issue I have replaced the alternator and then the battery terminals and now the battery and it still only holds a charge for about 5 hrs and the car will run but the battery starts to die and the engine starts to sputter after bout 25 minutes of constantly driving tho any ideas

Posted on May 27, 2013

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2003 Ford Expedition not charging

Probe it from the alternator all the way to the battery. Find the voltage drop or open circuit.

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Alternator not charging

If the alternators are not exactly the same as the original then there may be a problem with the voltage regulator circuit. Some alternators have internal regulators and others have external regulators.. Check for fuses in the charge circuit . If the battery is faulty then the alternators will not charge any way. Have a load test done on the battery.. If ok check the wiring circuit as the alternators require battery voltage before they will charge (no residual magnetism in an alternator)

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I have 2003 expedition that wont start,, it already has a new battery and starter..?

If have replaced the battery and starter then most likely your problem may be coming from the alternator. The alternator is in charge of providing a constant charge to the battery for all electrical components to run. If that does not work then try checking your fuel pressure to see if the fuel pump is not supplying enough fuel for ignition. Spray starter fluid inside the intake and if it starts long enough then you know that your problem is not fuel related.

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Jun 07, 2011 | 2003 Ford Expedition

2 Answers

Describe your 99 ford expedition the battery light turns off and on and then the battery started and loss charge. The truck battery was so lo that the lights turned off. Now the truck wont start its dead.

Possible that the alternator is faulty , the charging section of the voltage regulator charger is faulty, finally there is some heavy shorting in the circuit or a possible poor ground connection from the battery to the chassis.
You will need to charge the battery and recheck once again to confirm , check the charging voltage and check the drain.
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Feb 19, 2011 | 1999 Ford Expedition

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Today, my batter light came on, on my 2001 Ford Expedition truck. do you know what could have caused this problem? Alternator, maybe a new charging system...

The battery light means that the charging system is not working, and the most likely suspect is the alternator. Most auto parts stores will check your alternator for free, and let you know if it is bad or good.

Mar 18, 2010 | 2001 Ford Expedition

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Ford 2003 Expedition EB. Check Charging System

Its probably the alternator. It will need to be tested on the vehicle with the engine running and the light illuminated. Measure the battery voltage with the engine running. It should be at least 13.5 volts. If it is lower have the alternator tested at a shop with a charging system tester.

Feb 27, 2010 | 2003 Ford Expedition

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Battery light is on after alternator change

have u ck the new one,,,it could have a bad stater in it,,

Feb 20, 2010 | 2003 Ford Expedition

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Battery light is blinking in ford 2003 expedition

A bad battery, bad connections, or the alternator is not charging, Have them checked.

Dec 31, 2009 | 2003 Ford Expedition

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2003 ford expedition will not start

check battery and cables.if battery is 12.5 volts. look at cables for looseness and corrosion.if corroded clean cables and battery post. also check to make sure the alternator is charging.

Apr 13, 2009 | 2003 Ford Expedition

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Ford Expedition Battery and system charge warning

If he replaced the battery that would have cleared the code. There is another issue. Was the alternator aftermarket? Just becuase it is new does not mean good. Those are easy to install I would return it to where you got it and try another.

Oct 08, 2008 | 2003 Ford Expedition

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