I've changed the battery and alternator with no luck. My connections are fine.
2006-10-14 23:50:33 · 8 answers · asked by C. W. 2 in Cars & Transportation ➔ Car Makes ➔ Ford
Some times a belt that is not tight enough can make a battery slowly die, because it slips and won't keep the alternator turning fast enough during peak need such as when you are running the lights and other stuff at the same time. You need to charge the battery to full charge, and do a load test to see if it is good. I've seen new batteries that were no good. You changed the alternator, so you need to make sure it is putting out enough to keep the battery charged. Could have a bad diode in it, or some other problem that you can't see. Have the alternator checked to make sure it is putting out enough to keep the battery charged. If both of these check out as good, then you must start looking for a short somewhere that is pulling it down. If the gauge started reading low, then this means it's either not charging, or the battery is no good. A short will cause it to read low like this. You can get it running and pull the fuses out one at a time with it running, and when you find the circuit that has the short, it will go to charging when you remove the fuse that has the short in that circuit. You want to make sure the correct amp fuses are in the correct places. The owners manual will be helpful as to what amp fuses belong where. If you changed the alternator with the battery hooked up, it would have shot a diode in the alternator and knocked it out. Once you find the circuit the short is on, you can hook a headlight up to the circuit (use the low beam side of the light) and hook the wires from the light directly to where the fuse goes. One wire to one side of the fuse ternimal, and the other wire to the other side of the fuse terminal. This will allow you to move wires around by tugging and pulling on them, until the light goes out, and you have found where the short is. When installing an alternator, you must not have the ground cable (-) hooked up when you do it, or you can blow the alternator by changing the wires. Check all ground wire and straps. There must be a ground going from the neg (-) on the battery to the body, and a strap going from the engine to the body. These must be clean, not corroded, and be making a good connection or the alternator will not charge. Take them loose and clean them to make sure they are getting a good ground. I would think it will turn out to be a bad alternator, or battery. New does not mean they are good. On a "94" IF you take the ground off with it running, you will cause a voltage spike, and you will be replacing the computer. This is NOT a good idea. Good Luck!!
2006-10-15 01:05:27 · answer #1 · answered by Anonymous · 0⤊ 1⤋
1
2016-12-23 01:20:45 · answer #2 · answered by Anonymous · 0⤊ 0⤋
1994 Ford Ranger Battery
2017-01-17 19:56:37 · answer #3 · answered by ? 4 · 0⤊ 0⤋
Are you saying that the engine turns over, but slowly? I take form your question is that your battery is draining for some unknown reason because you replaced the alternator and battery. Sounds like something is draining the battery. You could have replaced the alternator with another defective alternator. Not unheard of especially if you purchased it from a discount auto parts store. Have it tested. A bad diode in the alternator will drain the battery as the alternator output is connected directly to the battery terminal. Also try: Disconnect the negative terminal of the battery. Connect an ammeter in series with the battery cable and terminal (NOT ACROSS THE BATTERY TERMINALS!). Start pulling fuses until the high current draw drops. Keep track of the fuses so you can replace them into their respective circuits. There will always be some current draw from the battery. You are looking for a relatively high current draw.
2016-05-22 03:33:49 · answer #4 · answered by Anonymous · 0⤊ 0⤋
If you have installed a new or reconditioned alternator, with the engine running, briefly disconnect the negative battery cable from the battery post (briefly, it could damage your alternator, although I never had any problems), if the engine dies, something is wrong with the alternator.
If it keeps running and the battery is freshly charged but eventually drains, sounds like you have a dead short in the wiring. It could be a grounded wire or an electrical component staying on when it should be off.
Take your vehicle to Auto-zone or O'Reily's or some such auto parts store. They can usually check your electrical system and for free.
2006-10-15 00:17:37 · answer #5 · answered by deepndswamps 5 · 1⤊ 1⤋
Check the fuseable links near the starter relay on the firewall. Pull on then if the wire is broke into it will show when you pull on them. Did you replace the regulator as well? You should have 12 volts on the big wire and the yellow wire will be hot as well. When the key is on the green wire will have some voltage as well, it won't have 12 volts. Check all fuses under the hood and under the dash
2006-10-15 06:13:14 · answer #6 · answered by Josh S 7 · 0⤊ 0⤋
battery is dead not the Gage the battery any thing 5 years or over that's it no warning
2006-10-15 00:04:01 · answer #7 · answered by Anonymous · 0⤊ 1⤋
do exactly what he said try the ignition selinoid and the voltage regulator
2006-10-15 00:53:15 · answer #8 · answered by Anonymous · 0⤊ 1⤋