Ford Wiring/Electrical :: 2002 Ranger - Battery Light Comes On And Off
Nov 6, 2013
I have an 02 Ranger 4.0 4WD and I have been doing a lot of research to try and figure out why the battery light comes on and off. I was driving the other day down the highway and the battery light came on and voltage gauge dropped. Drive a little further and it goes off, go down hill light comes on, up hill it turns off. (The up and down hill part was probably just a coincidence!) ...
Next day I pulled the alternator and had it tested at O'Reillys and it passed no issues. Yesterday I was driving again the light comes on my way home from the store and stays on for about 3 miles til I got home. Turned my truck off, restarted it later, no light. Today I drove around for a while and about 45 minutes into my driving around the light comes back on and voltage gauge drops and after about a mile it turned off. I stopped by O'Reillys again to have them test the complete charging system and everything passed. On the way home, light comes on again!
So, question is, the battery light was not on when they tested, will that make a difference in the outcome of the tests? I'm guessing not??? Belt looks good, no bad connections that I have found, battery was good...what am I missing? Battery light is still on and voltage low when I start truck after 1.5 hours of being home. Also, I get no magnetism from the alternator when the battery light is on.
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I have a 02 f350 v10 with a starting problem. Sometimes it will crank but really slowly almost like the battery is dead, but its not! bench tested the battery and actually just bought another new one. And with the same result. I tested the relay that's on the firewall in between the starter and the battery and it checked out, i also bought a new relay and i want to put it in except I haven't figured out which wire goes to the coil and which one goes to the ignition. the battery and starter poles are marked and easy to follow ..
Also last month I changed the starter but I'm starting to get desperate and i think I'm going to take it off and have it bench tested as well. I'm just really at a loss in which direction to go. The truck on the outside really looks good but living in the northeast the frame and probably most of the outside grounds are toast and I've been renewing or just placing them as I come across them. Before i forget i tried jumping the starter directly from the battery with cables and got the same result. it would crank but too slow to actually turn over.. Sometimes my radio and ignition lights will sometimes come on without the key in the ignition..
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2005 Ranger XL 2.3L 5 speed 2WD 305,000 miles. Alternator has about 100,000 miles on it.
Battery light came on about 0400 and 50 miles into my daily 90 mile drive to work, made it to work. After the truck cooled down for 3 hours and I got time I checked the battery voltage 12.6VDC and started the engine and the system is charging at 14.2VDC with no battery light on (battery light out when cold). Serpentine belt looks good, dry weather.
Other than alternator nearing end of life and being warm is there anything else that may cause battery light to come on.
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The battery light is on in my dash. To test it I probed the car battery with a multimeter. Car off the battery reads 12.5 volts. With the car running and no headlights on, heater fan off, etc the meter reads 15-15.5volts. When I turn everything electrical I can think of on the meter reads 14-14.5volts. Is this normal or is the second scenario overcharging the battery? What else can I test that may be keeping the battery light on in the dash?
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I have a '97 F250 diesel and the battery light keeps coming on and off. The volt meter shows a good charge. How do I fix this?
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I have a 1999 Ford F150 6 cyl. 4.2, 2 WD with 160,000 miles. Replaced the battery May 2010.
Today battery light came on. Battery gauge did not look like it was discharging. Had battery checked they said it was a little low but OK. Then they continued test and tried to check alternator, test stopped and they said something wrong with alternator most likely.
I took alternator out and had it bench tested. They said it was OK, putting out 98 amp on 95 amp alternator. They said check wires, grounds, harness, connections. Checked connections and wires as much as possible, reinstalled alternator, light still on.
Have not checked fuses yet. Was told to start vehicle, disconnect positive battery cable and if engine continued to run alternator was good, if cut off alternator was bad and to replace. Should I try this and is it true?
What is the part on the fire wall that is between the alternator and the battery that the wire connection runs through? Can it be bench tested/checked?
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My 02 F250 is killing batteries. Also, when I try and lock the doors with the door lock switch, the doors lock then the driver side door almost immediately unlocks.
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So I get in my X today and she fires right up as usual... Then the battery light started blinking then stayed on... Then I hear a click and all my stock gauges go out my window and lock switches don't work and my radio doesn't work... Battery light stays on and all signals work as do the mirrors and everything else... I turn the truck off then back on it all comes back on.. 15-20 seconds later I hear the click and all the same stuff is off again.... No seemingly applicable fuses are blown... And the behavior is repeatable...
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Start out, drive about 20 minutes, get on the Interstate and the battery light comes on 2008 F 150 5.4L 4X4 - 57K miles..... get to my destination, went about 20 miles, turn around to come home, without turning the truck off because of the battery light being on and I notice the charging gauge drifting down to the left, get back on the Interstate and the wipers are slowing down and lights on the dash are dimming.....go around 15 more minutes I lose all lights on dash, wipers, defroster everything, charging gauge is now pegged all the way down to the left and the truck is starting to act up running like crap so I barely make it off the Interstate and call a flatbed, I guess I was about an hour into the trip ..... battery is only about a year old and it started fine that morning and the day before when it was about 12 degrees ...... dealership had the truck, just gave me a call and said they can't find anything ?? ..... never a days problem since I bought it new in late 07' ....
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98 Ford Expedition 4.6L, 198K Miles, New Battery, Alternator replaced, but battery light still on and after a minute charge indicator drop until left indicating zero, temp gauge on top while temperature motor is cold, gas gauge drop, when lights are turned on oil light turn on also check engine both for a few of seconds.
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Problem with my 2006 F150 5.4 4x4... Voltmeter spikes, battery light comes on, grinding noise as 4x4 engages on its own then everything returns to normal after about 60 seconds. Took to Ford who replaced the alternator and battery, still doing it so they replaced the alternator again...they checked the wiring and replaced some other misc parts and don't know what the problem is. The problem occurs once every few days, after only a few minutes or after a few hours, completely random.
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Any COMPLETE headlight switch wiring diagram? Everything I find online only shows 2-3 wires in each sub connector, nothing with all wires and colors, and what they do. and of course the factory service manuals no longer work on my new computer. the switch and associated wires went up in smoke 2 hours ago, and this truck is my only means of transportation rite now. what i need is headlight wiring with colors so i can temporary hook up a toggle switch to have lights until the new switch and connectors come in next week. I went to pull the switch and connectors out of the parts truck, but of course that does not have fog lights so it uses different switch and connections.
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My 1999 Ford Ranger XLT, 6 cylinder, auto trans, with 134K miles has an electric problem. When I turn the key to the 'on' position, all dash lights show normal, headlights work, radio plays, etc. But when I turn the key to the 'start' position, all electric power is lost. The power remains lost until I disconnect and reconnect the battery ground wire. After reconnecting, I again have power until the key is turned to the 'start' position. I was able to jump start the truck, so I assumed I needed a new battery. I bought one a week ago, and was back to normal until today. The truck started, I drove 4 miles to the grocery store, and then I found myself back to square 1 (i.e., the no-start situation).
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Need a wire diagram. I have a connector in the cab that has red,blue,lt green,white wires. It's causing my brake lights not to work. I need a wire diagram that shows were they go. I can't find these wires in my Haynes manual.
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I am trying to add courtesy lights to the existing reflectors in the front doors of my supercab. I can't find a wiring diagram that shows where to connect the light sockets. 1999 F250 SD...
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I have a vehicle I am storing for the winter, but do want to start it up on occasion just to keep it fresh. my question is this. I put a trickle charger on the battery to keep it charged up, its one of those chargers you can leave on indefinitely, once the green light goes on the charger, it goes into maintanance mode. but I've had the charger on for a week now and it seems the battery won't take a full charge. to put the battery charger into maintance mode. is it dangerous to keep charging a battery that won't fully charge up?
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Earlier this year had dead battery after sitting for a week. 5 year old battery so bought new one battery still goes dead randomly (overnight), instead of playing radio for a few minutes after key off, dash displays "system off to conserve power" ran it thru local repair place (ex ford dealer) nothing found. Voltage 14v at 1800 rpm, lights on". STILL goes dead randomly...
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i have a 96 ranger and want to put cruise control in it. is the wiring there and what other parts do i need to get without going aftermarket.
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My truck has been sitting more lately, which means up to a week without starting and running. Each time this happens I run into a dead battery. And I mean dead. I've charged it full and then used the truck no problem.
We did a test where we unhooked the negative terminal wiring clamp and ran a meter to check for amp draw. We did this by touching the meter leads to the negative post clamp (unhooked) and to the negative post on the battery. It gives a reading of ~1.5 amps. Trying to figure out where the drain might be.
We'll jut pull each fuse to see if we find the electrical area drawing the amps.
2008 F350 V10 CC SB DRW 4x4
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85 ford ranger 2.3 efi .. My brake lights still aren't coming on. According to the Haynes manual, the wire that runs from the stop light fuse goes from there to the hazard flasher and then to the brake light switch. Since I have checked everything else, is it possible that the hazards are causing a break in the connection?
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Really need diagnosing an on going electrical problem I'm having. It's on a 05 X 4x4 V10 with almost 113k miles.
Background : Last summer took a road trip and alternator went out and was replaced. On that trip started seeing problems with my cruise control, when the headlights(HID's) turn on they dim the dash, and hi's cause the speedometer and other gauges to quickly flux and then go back to proper readings.
Everything was "alright" in the sense that the only problems were those stated above. Well tuesday night on my way home from school, I was driving on the surface streets, stopped at a light.....then all of a sudden the battery symbol on the dash flashed and no more than a second later, the car stopped. All dash lights/radio (double din) still on and headlights still on, but couldn't start the X at all.
Was able to wait a bit and once my parents got there it did start and I was able to pull off to the side and diagnose it a little better, dad looked at it and at the moment couldn't really tell what would be wrong. I had him drive it home for me though. It's been starting fine again but I have NO CLUE as to what to look for and really would like to find out what's happening.
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