Ford Wiring/Electrical :: 2002 - Alternator Quit Charging / Headlights Little Dim
I *think* I'm having trouble with the alternator on my 2002 Navigator with the 5.4L DOHC engine.
A year ago in Feb 2014 the alternator quit charging. I thought the headlights were a little dim, but when the radio turned itself off and then the heater fan did the same, I noticed that the alt light was on. Then the engine shut down about 1.5 miles from home.
I'd heard of war stories about rebuilt alternators so I sprang for a brandy new one. I also got a voltmeter that fits in the cigarette lighter so I can monitor the system voltage. All seemed good and the new alternator put out 14.2 to 14.5 volts. Except that the battery never seems to be fully charged. If I check the battery voltage with the engine off it typically reads 11.9 to 12.2 volts. I had Interstate Batteries check the battery. They thought it was okay, but offered to put a new battery in to keep me happy.
Six months and 8,000 miles later I'm up in Ontario back country (on vacation - no tools in the truck) and I notice the engine idles at 900 RPM instead of the usual 650 +/- RPM. Oh-oh, I also notice the volt meter is reading 11.9 volts and drops a tenth about every 10 miles.
Found a shop that was open and they installed a rebuilt alternator and it was putting out 14.2 to 14.5 volts. All was good (except for my wallet!).
Now, here we are six months and 5,000 miles later and the rebuilt alternator is struggling to put out 12.5 volts this afternoon. At a steady 50 MPH with the cruise Control on, the radio, and the heater fan on low, the voltage is bouncing between 12.2 volts and 12.7 volts.
Now to my questions:
1. Shouldn't an alternator put out 14.2 to 14.5 volts all the time? Not just when the alternator is new?
And
2. Is there anything on my truck that could be killing these alternators? Or am I just unlucky in the alternator lottery?
Ford Wiring/Electrical :: 1999 F350 - Alternator Over Charging And Gauges Stopped Working
We have a 1999 F-350 V10 super duty. The alt was over charging and the gauges stopped working. Replacing the alt, the guages still don't work, and the new thing is the charge light and selt belt light comes on. The fuses 29 (5amp)and 30(30Amp) which are supposed to be key on hot only are hot at the same time. With these on, it causes a drain killing the battery. Also if the truck is started, the lights go out, but when you try to turn the vehicle off, it stays running, one with the battery disconnected. The only way to shut it down is pull the fuse box power fuse, 50(amp)Some one had been in the dash before we got this vehicle and busted, burned out or removed the check engine light. I can read codes and their vehicle runs fair and does operate. Could this be a dash board? Also this problem appears when the truck is sitting, and the key removed nothing on. No fuses are blown either.
View 3 RepliesFord Wiring/Electrical :: 1999 F250 - Alternator Fails At High RPM
I have a 99 F250 super duty 4x. It's all stock except for some speakers I replaced when I got it. The others were blown from my uncle. I don't have any amp or anything like that and the truck has ran fine for 3 years so I don't think the alternator has failed because of that. I'm thinking just age and 138k miles.
I was wondering what generation of alternator might be on there and how to tell the difference between the generations.
I have 12.5V with the truck off, about 14V with it on idle. As soon as I get it around 3000 RPM the battery light comes on and the voltage goes to 12.5V. Where can I get a rebuild kit for the alternator. I don't see anything at the major parts shops (napa, oreilly, autozone). Could this be the voltage regulator(that I did see at the stores)? I think its mounted to the back of the alternator. Is there any way to test the alternator further?
I'm a little confused as why it would be only above 3000 rpm. Are there two separate circuits for it? Like a low rpm one and then a different one above 3000 rpm?
Ford Wiring/Electrical :: 1973 F250 - 3G Alternator Swap / Adding Relays To Keep Headlights From Shutting Off
I'm working on the '73 F250 in my sig. I'm not very skilled when it comes to electrical work and I don't want to hack things. First up is I'm wiring a 7-way trailer connector with brakes. I need to tap into the brake light switch at the pedal, what is the cleanest way to do this? I was thinking of sticking a blade connector in the existing connector or adding a plug pigtail.
Also in the future I will (hopefully) be doing a 3G alternator swap and adding relays to keep my headlights from shutting off. I'm looking for suggestions on a junkyard or aftermarket fuse block that will accommodate the circuit breaker for the trailer brake, the 100 amp fuse for the 3g swap and the relays for the headlights.
Ford Wiring/Electrical :: 1976 - Truck Just Lost All Power And Came To A Stop
I bought a great 76' SuperCab with a 390 4 barrel Wednesday (the 30th) and while driving around the neighborhood this evening the truck just lost all power and came to a stop. No lights, no engine, nothing and I cruised to an easy stop (fortunately at the end of my own block). I thought I smelled a bit of electrical burn for a moment after I came to a stop but could not track it down before the smell disappeared.
Some early symptoms - on drive home from purchase, the turn signal light function was in and out. The starter was also turning slowly and sounded tired/weak. The ignition switch was a bit loose and previous owner said you had to make sure the key was not all the way to the right or accessories would not work.
Some early checks/fixes- replaced battery and battery cables and checked grounds. Starter began turning stronger and turn signal lights were back. Thought I had it going well.
Ford Wiring/Electrical :: 1976 F100 - Engine Continues To Run And Only Way To Stop It Is To Jerk Coil Wire Off
I have a 1976 Ford F100 with a 302 and my problem is sometimes when my engine is running and I try to cut it off, it continues to run and the only way to stop it is to jerk the coil wire off. This is an intermittent problem. Happens about every 6 or 7 times I drive it. I have replaced the ignition switch and still have the same problem. Pretty sure it is some type wiring or ground issue, just need someplace to start.
View 1 RepliesFord Wiring/Electrical :: Charging RV Batteries While Driving?
I have a F250 towing a Big trailer and the RV folks have told me that while the factory seven prong will supply power to the RV, it would take a days to charge the RV batteries. So...
1) Does the connector not really significantly charge the batteries?
2) Is there a faster way to charge the RV batteries while driving?
3) Would instructions something like I found at How to Charge Two 12 Volt Batteries on an RV Towed by a Ford F-150 | etrailer.com work?
4) Would #3 eventually tax my alternator so badly that I kill it?
5) Would #3 fry the electronics in the trailer?
I'm trying to charge 2 6-volt marine deep charge batteries in series.
Ford Wiring/Electrical :: 1963 - Replaced Generator And Regulator Still Not Charging?
I have a 63 Falcon that the generator went out on. I replaced the generator and the regulator and it still isn't charging. A friend of mine told me if I disconnect the FLD at the generator and connect a jumper between FLD and the battery + terminal it should start charging which it does. I have swapped out two different generators and regulators now and it is still doing it.
View 5 RepliesFord Wiring/Electrical :: Replaced Alternator - Humming / Buzzing With Key On And Engine Off
2003 f350 6.0l single alternator. Replaced alternator a couple weeks ago with one from napa, noticed a humming with key on and the engine off . Traced it to the alternator, called napa they said it was not normal come get a replacement, put the new one on same thing. Charging in the 13.5 to 14v range the case of the alternator seems to get hot quickly when running.
View 14 RepliesFord Super Duty (1999-2016) :: 2003 F250 - Alternator Not Charging Battery?
Took in the alternator to get it checked and they said it was good. Put it back on and it seemed like it was charging according to my volt meter (14.24-13.5 v)
Today, it's not charging. Only reads 12.2 v while running. Is there a fuse or something I need to check? Grounds? It seems intermittent.
2003 F-250 V10 6.8 liter 255,000 miles.
Ford Wiring/Electrical :: 2000 F350 - Alternator Died / Isolator Failed
Over the weekend I was driving my 2000 F350 and the alternator died (found out later). The shop said they replaced the alternator but it wasn't charging. They later told me it was because the isolator failed. My 2nd battery WAS a yellow gel battery. Before the battery (in series) was an 50 amp circuit breaker...........that blew apart.........and the battery had a melted off side terminal. It looked like the 'sealed gel battery" had been 'leaking for a while" (as there was funky acid type white corrosion deposits in a few places. Any speculation what happened here?
View 4 RepliesFord Wiring/Electrical :: 2008 F150 - Battery Light On And Charging Gauge Drifting Down To The Left
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' ....
View 5 RepliesFord Wiring/Electrical :: 1981 - Headlights / Dash Lights And Charging Light Will Flicker At Same Time
I have a 1981 F100, lately when I've been driving at night I notice my headlights, dash lights, and charging light will flicker at the same time, and even sometimes my headlights will flash on and off by themselves.
View 2 RepliesFord Wiring/Electrical :: 1997 F250 - Rear Tail Lights Wiring
I have a 97 F250 HD. Wiring the rear tail lights. When we bought it the had cut off the wires going to both sides of the rear lighting assemblys and I was wondering what wire went to what i have the left turn signal working just can't seem to get the brake/back up light to work on that side and i can't figure out how to get the right side going either.
View 8 RepliesFord Wiring/Electrical :: 1999 F250 - Door Courtesy Light Wiring Diagram
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...
View 2 RepliesFord Wiring/Electrical :: 1990 F250 Hard To Start - Glow Plug Controller Relay Wiring
I just bought a hard to start 1990 F250. Per the board, just replaced all 8 glow plugs with Motorcraft. Still wouldn't start (it turns over but will only start if you use either). I attempted to install a new BWD brand (Borg Warner I believe) glow plug connector relay today...I removed the old no problem, but am unsure what wires to plug where....the only connection that I'm sure about is the blue wire that works the WTS feature...it plugs in easily but I don't know if there are other connections that need to be made or not? All the wires run from the posts and into the bottom of the unit.
View 2 RepliesElectrical-wiring - Acura - Rl - Gauges - Starters :: 1997, Battery And Brake Lights Came On After Alternator Replaced
I got my Alternator replaced last week. Last night, I hit a very small bump, not even large enough to really cause me to slow down, and as soon as I did, my battery and brake lights came on. My RPM gauge also jumped around and eventually went to 0 until I stopped and put the car in park. (The bump might just be a coincidence who knows). So after all this happened, I turned off my car, tried to restart and got nothing. Sometimes I get a click, sometimes 2 clicks up to 4-6 consecutive clicks. Every few times I won't even get a click, just a slight attempt to start, then the car dies, then 2 seconds later all my lights and radio etc. come back on. My problem here is a few things:
1. I've been told it could be the starter. If it's the start, those dashboard lights shouldn't have came on right? just the STARTING portion of the car.
2. I've been told it could be the battery.
Well If i got my alternator tested and Advance said it was working, Why would my battery be dead? And if it WAS dead, wouldn't my lights have went dim or something else happen to the car?
Ford Wiring/Electrical :: 1983 F250 - No Spark At All
I have a friend of mine that has a 1983 and he had me change the water pump in it because it started leaking and it has been sitting for 7 Months now. I changed that but I can't get this bugger to start. I used to be a mechanic in a past life so I know what I'm doing most of the time so let me explain what has transpired here.
I attached my remote starter, turned on the key and cranked over the engine after shooting a little bit of starting fluid in the carb and she cranks over but won't start. I then pulled the #1 spark plug out and then did the same thing to check for spark and nada. I put my light tester on the coil and there was power. I have run into this kind of problem years ago with other vehicles so I thought I would just go ahead and replace the Coil and also the Control Module. After replacing these parts, still no spark. Since the distributor is there only to distribute the spark (meaning no electrical connections to it) I'm assuming that the Pick Up part that is down by the Crank shaft might be bad.
How to test either the Control Module or the pick up. I'm trying to diagnose this problem without needing to remove the module and taking them to the parts house for testing. (long drive). These wires should have 12 volts when the key is off and these wires should have 12 volts when the key is on.... and so on.
Ford Wiring/Electrical :: 1992 F250 - Blinkers Will Not Work
I recently bought a 92 F250 and love it but the blinkers will not work. I have replaced both flashers and the multifunction switch. (the wipers had issues too that were fixed by the switch...) Now what? Im at a loss..
View 7 Replies