2002 f350 super cab 7.3 diesel, replaced alternator because wasn't getting charge to batts, Napa guy checked batts and determined no charge, replaced alt, still no charge, have 12v at alt post with engine running or not. My ? is, is there a fuse in here somewhere that I'm missing? Went through all fuses in fuse panel all good.
View 7 RepliesI have a 2002 F-350, 7.3 that is not charging. It has no power coming in on the big supply lead on the back of the alt. I traced the cable back, and it goes to intake heater solenoid. Cable is good, but intake and glow plug solenoids both have no power coming to them. I am guessing there is an open circuit between solenoids and starter. My question is, does the power come right from the starter, and is there circuit protection in there someplace?
View 2 RepliesOK I have 14.04 volts at the batteries with the engine running but my battery light is on. I had the alternator checked off the engine and on the engine and it tests good. Shows good batteries and good charging. Is there something internal to the alternator that would make the light come on even though the alternator is charging ok? Or is there something else that would make the light come on. This is on a 1999 F250 Superduty Powerstroke 7.3.
View 14 RepliesI have a 2000 excursion that stopped charging. The battery light is on . I replaced the alternator but it still will not charge. I have checked all the fuses. Not sure where to go from here...
View 2 RepliesMy alternator quit charging last night. Was pretty much a sudden onset as I was driving down the road and left off the accelerator the battery light came on and lights dimmed a bit. When I stepped on the accelerator again they bat. light went off and the lights came back up.
At idle I'm at 11.77v. I've pulled the plug on the back of the alternator and I'm getting voltage on both the red and green wires that go into the plug with the engine running. Is this correct?
Pretty much as the title says, I'm having an interesting electrical gremlin. Ford 7.3 super crew 2002 lariat LE.
I have batteries from 2015 that are losing their charge, both of them. It's like the alternator isn't charging them. Truck will struggle to start until jump started, then she's fine.
Symptoms are:
ABS light comes on when as best I can tell the batteries aren't getting charged. Not the battery indicator.
Now that the batteries are low enough, on the instrument cluster the little light the powers the mile LCD screen dims when it's not getting power (but it's fine when the batteries have charge.)
All accessories work when driving, but I haven't been able to drive a long while on the "not charging phase" to see how low they're go.
Batteries register dead (now) because they haven't gotten charge in a while.
When the alternator IS charging or "connected" I can leave the truck idle and she'll charge the batteries, truck will start just fine on the next run (no parasitic drain.)
Driving causes this to happen randomly, doesn't happen when I'm stationary, nor do I believe it CHANGES state (so if I'm idle it won't suddenly NOT charge if it was charging before.)
Narrowed down to 2 probable things.
Alternator
Bad alternator to battery cables
I had to replace my alternator (single unit) and after installation it seems only 1 of the 2 batteries is charging when I check them while the truck is running. What check or could be the problem?
View 1 RepliesTook 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.
for some reason my battery light flickers when im driving regular and on the highway. I have had both batteries checked and they were at 50 percent charge and both were good so therefore I assumed it was my alternator. I removed alternator had it check and it passed all test. Everything was checked at o'reilly and autozone
View 8 RepliesHow many Volts available at plug for charging FW batteries, and what can be don to trick alternator in to keep charging when truck batteries full, install larger wires? From alternator or truck battery, if yes which battery. 2015 F350 Lariat 200 alternator.
View 14 RepliesI have a 2008 f350 6.4 (105,000 miles) and I am randomly getting the check charging system the batterys have a standing voltage of 13.8 and 13.9-14v (read from the ecu with scanner) both at idle and under a load. I also checked the alternator and its making 13.8-14 all the batteries are tight and there is no corrosion.
View 1 RepliesMy truck has been sitting for 3 years and I want to bring it back from retirement. I changed oil, checked fluids, replaced the starter, starter solenoid/relay and tossed in a 2 yr old charged battery (800CA). She would not turn over and I jumped with another vehicle. She turned right over and with an insane dust cloud! I went to disconnect jumped cables and it died. I assume the alternator is shot.
Jumped again to bring up to temp so I could check tranny fluid. It was running for about 5 minutes and just quit. Nothing mechanically to my knowledge caused this. It quit peacefully. I went to fire it back up and all I get is a click at relay on inner fender. The new one. Even while jumping..... What I should test/diagnose next.
I went to start my 2006 F350 6.0 this morning. 20 degrees outside. It nearly turned over, then it appeared that the batteries would not support another start - a slowing of the pre-engine start revving....
So I let it sit a while, now it won't start at all. When I try to start it, the dashboard flashes, clicking sounds occur and even after pulling out the keys, the needles on the gauges shake for a few seconds.
Is this more a battery issue or an alternator issue?
2000 f350 7.3 .. I'm having a horrible time trying to figure out why my truck is draining down the batteries. I can charge my batteries over night and put hem in and the truck will run for a few hours but then it dies completely. The alternator seems to be running really hot afterward like it is being over worked. I put in 2 different alternators and 2 new batteries and it didn't fix the issue.
I then put in a new starter relay. Still having the same issue. I believe I have a short because I tested for it but am unable to locate the short. I heard if you over work the bushings in the starter they can ground out on the casing which will cause something similar to this to happen. I work in ND and had to cold start it in - temperatures the morning this all began. I purchased a new starter but don't want to put it in if that is not the issue.
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 RepliesAbout 6 months ago my 4 wheel drive stoped working and I wasn't worried about it because I never used it. I did mess around with it allitle bit to try and fix it the one time I did need it. Long story short I was involved in the floods near Houston these past few days but my truck was never in more than a a foot of water. I went up the store and grabbed a few drinks and went home. tuesday when I went to get in my truck to head back to college station for school it was stuck in 4x4 low. whick puzzled me because my 4 wheel drive hasn't worked in a good while.
When I turn the key on there is no 4x4 lights that come on momentarily and when I turn the 4x4 switch still no lighst come on. Again its been this way for 6 months. I tested the two relays under the hood and both of them have power. there is no power going to the switch in my dash and no power going to the solenoid on the transfer case. Wich is why I am confused on how it went into 4x4 low. I assuming it is in 4x4 low because of how fast the tranny shifts and I know its locked because I cant turn my front drive shaft while in neutral. The hubs are unlocked. I just printed out a shematic and am gonna try to figure out why my 4x4 isn't working.. to hopefully fix it so I can get my truck out of 4x4.
I recently bought a 2002 F350 and so far, the only issue I've had with it is I can't find out why the ABS light is on. I've looked around and found that it's probably caused by the speed sensors. But this is where I run into issues. From what I've seen, a bad sensor will generally give a reading of 0 ohms, but none of mine do. The rear diff sensor gives me ~1800 ohms, which I believe is OK.
The front driver side reads about 700 which is I know is a little lower than it should be, and then my passenger side reads ~42 mega ohms. Both the front sensors kind of threw me off since what I've read says they should all read about 1200-2500 ohms. Any other things I should check or should I just go ahead and replace both front sensors? I've just looked around and have barely been able to find anything about the front sensors.
Just completed the rebuild on the front end of my 02 f350 and of course I had to take the abs sensors out, everything is good but now my abs light is on. Is there a method I can use or do i have to hook it up to scanner and erase the code.
View 1 RepliesMy truck seems to shudder between 40 and 60 mph when it's in OD. If I turn off OD it seems to go away with the increased rpm's. Although I can't be sure if it genuinely disappears or if I just don't notice since I'm at 2100 rpms instead of 1500. Trans fluid is clean. Is this a common problem in these trucks? Just filled up from flat E the same day air temps about 4 deg. Truck was fully warmed up. Does this sound ignition related, tranny or fuel related?
View 14 RepliesI have a 02 F350 V10 4x4. Tonight I went out to go to a friends house and the truck started fine but when I push in the brake it will not release the lock on the shifter. You can hear a click noise when you push in the brake pedal.
View 14 RepliesThe batteries keep dying. I can charge the batteries and drive it to work a couple of days and by the fourth day, it's dead again. Have replaced alternator, batteries, and starter and I am still having issues. Just noticed this weekend, the instrument cluster going off, coming back on, shutting off again all while the truck had been running for about an hour. I'm not sure if it is because the battery was dying or what. As soon as we got home after the instrument cluster incident, turned the truck off and tried to start it. The battery was completely dead.
I have been looking up on sites and I keep coming across the GEM Module. I want to ask around before I buy it. I have also noticed small issues with my 2000 Excursion. Back windshield wiper starts up upon the vehicle starting. Goes a few times and stops. Not sure if this is the same type of issue as in the GEM Module.
2002 Ford F350 7.3l Diesel with 148000 miles