Ford Wiring/Electrical :: 1976 F250 - Alternator Not Charging
I bought a truck recently and I am attempting to get the alternator to charge. A previous owner hacked up the wiring pretty badly. We found that they had connected the voltage regulator to the horn relay for some reason. Anyway, I am trying to get it rewired and have searched existing threads for info and I thought that I had the wiring sorted out, however it is still not charging the battery.
The alternator has been tested and works. The voltage regulator is new. This is how it is currently wired.
Regulator A Terminal --> Battery side of started solenoid --> Alternator Batt Post
Regulator F Terminal --> Alternator Fld Post
Regulator S Terminal --> Alternator Sta Post
Regulator I Terminal --> Empty
Regulator body --> Radiator Support --> Alternator Ground Post --> Neg batt
When running, the battery is showing about 11.8 and slowly dropping as it runs. The truck has an ammeter in the dash, however it looks like it is no longer connected. Does it need to be connected in order for the alternator to charge the battery?
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 :: 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 - 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 Super Duty (1999-2016) :: Wiring New High Amp Alternator?
Got my 240 amp alternator in and had all new 1/0 GA battery cables with a 250amp fuse in line made to do all new lines. I started tonight and found a small line going from the alt connector down the power line to a fuseible link (fuse) all in the power line
I wanna do away with the main 4 ga alt wire but obviously I can't do anything with that line going to the plug. Can I put a connector on it and wire that into the one side of the 250amp fuse.
The only other option is to add a wire to beef up the stock line ....
Ford Wiring/Electrical :: 1999 F250 - Seats Are Not Heating?
I have a '99 psd f250 crew cab lariat, I just purchased seats from a 2005 F350 that are lariat heated and power. My seats are power but non heated is there a way to hook everything up.
View 3 RepliesFord 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 :: 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 Wiring/Electrical :: 1999 F250 Won't Start Without Trickle Charger
1999 - F250 7.3L Crew/Longbed manual locks/windows ...
2x New Batteries a few days ago, same symptoms as old batteries ...
Sitting overnight loses .1 volt due to cooler temps in am measurement:
9pm 12.92v
7am 12.83v
11am 12.93v*
*won't start
The amp draw measured at 9pm and 11am is essentially zero (reading .06 or less, usually 0.00) on both cables exiting the passenger side battery. This is sitting for an hour plus with the hood courtesy bulb removed. (although it drops to near zero within a few minutes of the domes going off). Using a clamp around ammeter.
The alternator is charging (14+v reading while driving). When trickle charged overnight the truck starts fine. Plugging in the block heater makes no difference in starting (or not). 45 F overnight. When it doesn't start:
-double keying the glow plug light comes on
-tach needle bounces on crank
-voltage of 12.8 drops to 11.2 on glow plugs, then 10, then 7 while cranking
-sounds like it's almost going to catch, then bogs hard and the voltage really drops
Again, it starts fine when charged and starts after short trips (by virtue of my wife having made it home). Haven't tried to jump start as I don't have anything handy that is boss enough to jump one of these. Typical use during failure:
Charging with charger
Start
30 min to store
3 stores, start 3 times
30 min to home
Sit overnight
Won't start
This morning I checked that the battery terminals and battery clamps all had the exact same voltage. There are occasionally amps between the batteries (.37 to .08) measured on each end of the cable going over the radiator.
So, if there is no drain and the block heater doesn't work, but it starts fine if it hasn't been driven/sitting, what is next to check?
Ford Wiring/Electrical :: 1999 F250 - A/C Compressor Stopped Working?
I have an early 99 F250. The a/c compressor stopped working. Have checked pressures, switches, freon etc. Found the switch in the dash is not getting power to send to the compressor. Where the feed for this switch is? I have checked all fuses, all good. The manual does not show a relay as being an a/c relay, so I am stumped without taking it somewhere now but I would like to avoid that.
View 7 RepliesFord 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 :: 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 :: 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 RepliesFord Excursion :: V10 High Output Alternator Wiring
Bought a Powermaster 250amp alternator for my '05 V10. Says I need to upgrade my power and ground wires to 4 gauge with fuse on power cable. I don't really run too many accessories other than HID heads and fogs and 2 DVD screens for the boys.
Do do I really need to upgrade my wiring? Can't imagine I'm pulling much more amperage than stock (130amp on my truck).
Electrical-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 :: 2004 - High Mount Stoplight On?
My Ranger, an '04 Edge without cargo lights. The high mount stoplight is faintly lit with the parking/headlights on. I had changed out the incandescent bulb for a LED, and went out to see how everything looked after dark. Well, the high mount had a slight glow to it, not really on, just a faint glow. This was never noticed with the regular bulb. I suspect I may have some stray voltage coming from somewhere, just enough to make the LED glow, but not enough for the normal bulb. When I switched off all the lights, it went out as well.
I tried to find a wiring diagram on line, like I've suggested to others in the past, but no luck from Autozone, or the EBSCO host I've used before. In fact the EBSCO will no longer accept "tech" as a user name or password.
So, where the problem may lie? I hate it when I can't figure out something like this!!!
Ford Wiring/Electrical :: High Beam And Fog Lamps On At Same Time
To make your fog lamps stay on when you go from low beam to high beam ,what do you have to do. I know there is a wire you cut and go to ground under your dash.
View 2 RepliesFord 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