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Battery/Alternator issue? Help.

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Battery is brand new, alternator died and I didn't know so it was using all the power from the battery.. and it's about dead now..
Tomorrow I find out if I can steal the alternator off a 99 Sport for free... It would work, right?
 



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Battery is brand new, alternator died and I didn't know so it was using all the power from the battery.. and it's about dead now..
Tomorrow I find out if I can steal the alternator off a 99 Sport for free... It would work, right?

Just quoting another member:
"The OHV alternator is different from the SOHC/302 version. They share two of the three mounting bolt holes, plus the wiring is different. I had an OHV unit in my 99 just to start it, the battery light stayed on. The guts may swap, but an expert would be best to ask that about."

So in other words it may work may not...If its a SOHC...
 






It's the SOHC.. I need to know if it'll work or not...
 












Found the answer, the SOHC and 5.0 Share the same alternator and can be swapped no problem.
 






Alright, so I have an alternator on the way. Used, $75.

So all I have to do is disconnect the battery, and the wires from the alternator. Use the tensioner to get the belt off, which I use a 3/8 socket wrench without a socket.. take the belt off, remove the two bolts on the side, and the one that's on a pipe or something.. pull it out.. do the reverse for installation and I should be good?..
 






I would recommend having the used alternator checked prior to installation.
 






They said they check them before they sell them, 30 day garantee too.

(It's coming from a junkyard warehouse parts place... =\ )

5.0 Explorer it came off of, 130amp.
 






Anyone have a picture of the 98 302 in front? Maybe when they had the engine out?
Just wanting a quick reference to look at n whatnot. (I like looking at the actual thing than a diagram) Shows more details about things imo.
 






The OHV alternator has the main wire attaching on the back. The SOHC and 302 unit has the power wire attachment on the top, not the back.

The distance between the alternator mounting points is different for the OHV versus the 302/SOHC unit. You will know it immediately. Check and clean the battery posts also, good luck.
 






Well, it's -45 and the battery is completely dead now. No theft light blinky, power locks are not responsive.. nothing.. it's just plain dead... And now I have to wait until Thursday til I get an alternator from Washington. The one from Anchorage.. well.. they lied and didn't have it.
 






Well, it's -45 and the battery is completely dead now. No theft light blinky, power locks are not responsive.. nothing.. it's just plain dead... And now I have to wait until Thursday til I get an alternator from Washington. The one from Anchorage.. well.. they lied and didn't have it.


Lame but its how the wheel turns...Or in your case frozen to the ground =-D
 






What do you suppose I can do when I get my Alternator installed? (If jumping is not an option)
 






When a battery is very low, you need to remove the battery from the start circuit. It will keep the engine from starting by its power need.

Remove one battery cable from the battery, the ground. Connect the ground clamp of the jumper cables to that ground cable, without it touching the battery terminal. Start the engine, and then connect the battery cable back. Regards,
 






When a battery is very low, you need to remove the battery from the start circuit. It will keep the engine from starting by its power need.

Remove one battery cable from the battery, the ground. Connect the ground clamp of the jumper cables to that ground cable, without it touching the battery terminal. Start the engine, and then connect the battery cable back. Regards,





Don is the man! Listen to him!
 






It's already dead though..
 






You are saying that the battery voltage is very low. Either remove it and charge it, or jump the engine with that dead battery out of the circuit and drive it to charge the battery. The battery will need a good charge.

I am saying that the reason that it didn't and will not start by jumping it, is that you have a dead battery in the start circuit. Disconnect one of the battery cables, and the engine will start by jumping it with another vehicle.
 






It's completely dead. I don't have the new alternator yet. It was low, but still good... theft light was still blinking and then last night it got to -45 below and it stopped blinking, power locks aren't responsive either.. it's just dead. I don't have a charger or money for a charger right now.
 






That's a big reason I suggested jumping it off with a cable disconnected, you need to diagnose everything still. Check the voltages to be sure what the problem is. If the battery is really low(check the voltage), then something caused it, not the cold. Cold would reduce effectiveness, but not kill the battery. You need to be sure that something isn't hurting the battery(like the alternator), because they cost good money to replace.

It sounds like you need to invest in a battery or engine heater for those kinds of really low temperatures. Take care of yourself as well as the car.
 



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Just to get a few things straight, the battery is brand new. The car is fully winterized (block heater, heating pads) It has been plugged in throughout all of this. The first all of this started, as it says up at the beginning of this post. I went for a drive, everything was dim.. until halfway the everything went back to normal and my voltage went from 11-12v to 14, which brings me to the conclusion that it was the alternator. Leaving the car parked and plugged in, I had my radar detector on for a few days, it gave a voltage of 11-12 volts until a few days later I turned it off because it read, "Low Voltage" Locked it up, and left it. Theft light was blinking like normal, but everytime I would get into the car all the lights would be extremely dim. The theft light was blinking and the locks would work up until last night which it got to -45. The battery just needs a charge and I need a new alternator.. which is on it's way. There's not much more to this. I just need to charge the battery.

I don't think disconnecting the battery at this point wouldn't matter, as it's completely drained. Once I get my alternator in, I'm going to have to borrow someone's battery charger or use one of those emergency chargers as a jump to get the truck running so the alternator can bring the battery up to level a bit more.. and then I think I should be fine. Unless you think I missed something really important throughout all of this.
 






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