Ford Super Duty (1999-2016) :: Alternator Light Flickering Then Stayed On / Ticking At Idle
Mar 13, 2015
So my truck drove great to ocean city MD this weekend. Power is perfect again, feels really tight. But now I have having to additional problems.
1) My alt light had been flickering a couples times a month. Last night it came on and stayed on. Lots of threads about this I Know!
I am hoping that cleaning and tightening the connections will do the trick since the alt is a Bosch with only 25k miles or so. But I want to order a rebuild kit:
is my alt a 3G or a 3G8429?
F SERIES | Alternator Starter Rebuild Kits
2) I started to have a ticking at idle. Its very regular and sounds like its coming from the passenger side valve cover. In random threads I have read about timing chain guides breaking and loose rocker arms.
Most of the time its 3 ticks in a row and then a pause. Should I be pulling the valve cover? Think I need to R&R the timing chain? I will post a video later!
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I gave my truck a little more gas to hold my speed up the hill to my exit and as I did the truck downshifted. As it downshifted, my tranny light on the dash came on and stayed on. I drove the mile or so from exit to my parking lot and here it sits. Drives fine, shifts fine, and doesn't smell. It needs to be able to make that hour long drive home Thursday night. Is it okay to drive? Is there something I need to do? It's an 06 F-250 5.4.
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My 5.4 is ticking loudly at idle. It's from the passenger wheel well. It doesn't seem to speed up with rpm. Maybe tick goes away with throttle? I did recently change plugs. So maybe coil pack? Cam phaser? Exhaust manifold? How do I troubleshoot?
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I have a 2006 F250 6.0L Crew Cab 4x4 that started acting up. It started two days ago when I noticed my windshield wipers were only working at one speed. Then today my wife took the truck to work and she said the radio stopped working on her way to work. Then she gets in this afternoon and the ABS light is on, the A/C isn't working, the windows are super slow and the interior lights are flickering. She isn't home yet so I haven't checked the fuse block. Where would you start looking?
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1999 F-250 7.3 Ext Cab 4X4... I just got this truck and it started having the 4x4 light flashing or flickering while driving and sitting?
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My trouble is that the alternator light on my 2004 F-250 Diesel began to come on occasionally, but never constant. Taking in the fact that it was still the original alternator, and over 70,000 miles, I figured it was time for a new one. I installed the new one and after two days the light came on again. I tested the alternator and it read 13.84 volts while running. With the engine shut off, I had 12.59, and 12.6 volts at the batteries. What may be my problem? Diesel down.
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I put an O'reileys alternator in my truck today. Drove it most the day and did some plowing with it and it was fine. I just went out to run to the gas station and now the battery light is on. The voltage is still good.
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OK 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.
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I have a 1999 f-350 V-10. My battery light came on, making me believe that my alt. has quit. I can't see the plaque on the alt so I can't tell the amps. Does my serial number on the truck tell the amps, or do i have to remove the alt to check the amps?
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2000 f350 interior buzzing noise opened the door went away, shut the door after a little while came back. Then notice the dome light flickering, took the dome light bulb out it completely stopped?
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My 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?
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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
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I have a 2005 F 350 with a 6.0 Diesel! My heat quit on my wife and I the other night! I replaced some fuses and started the truck to make sure the heat was working and it was! So I thought while I am here I should replace some bulbs in the cluster that were out!
I took the cluster out, looked at the bulbs and they looked oK so I put them back in and put the dash back together! When I went to start the truck once I turned the switch on my gauges and lights started flickering on and off fast and all it will do is just click when I try to start it! I just had it running 15 minutes before this!
I went through all the fuses and if I take one of the relays out and turn the switch on all the lights and gauges seem to work right but when I try to start it, nothing! I replaced the relay and it starts flickering again! I had the relay checked at Napa and they said it was good! The relay was for the Powertrain module!
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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
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My 05 F20 CC LB 6.0 4WD has the alternator light on for a few miles then goes out also sometimes goes away when you accelerate hard, is my alternator going, or is this some common glitch in the light hopefully?? Also every once in a while got the death wobble, installed tie rod ends and center link, but if I hit a bump just right it does it.
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Ok, so driving in intermittent rain the other day, I had the wiper on the slower of the 2 constant "on" positions. I pushed the sprayer (bugs) and went to turn the speed down, and the wipers stayed on.
Tried running the switch and sprayer through the on/off positions a few more times, still wouldn't go off. They WOULD go faster (fastest on setting) but not slower. (None of the intermittent settings.)
They also stayed on when the truck was off, only way to shut them off was to pull the large pink "main wiper" fuse, #106.
Any ways to trouble-shoot? Of just replace the whole switch/assembly? As far as I can tell everything else works as normal.
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While I was trying to park, I heard a clunk, wheels stayed in the same position. The steering wheel is loose as hell, it literally feels like its buttered up and wont turn the wheels at all, what to buy to fix it? I am thinking I just need a new gearbox....
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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 ....
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The V10 in my service truck took the long slow ride. I located and am in the middle of replacing said engine. My question is, how difficult would it be to install a second alternator in this truck, considering I have it torn down for replacement?
It a 2000 F350 with a V10. I'm looking for more power as I have mounted on the Knaphiede service body a IMT 1015 crane, 3200 lb capacity. I would like to install a power inverter to be able to run an air compressor in the field.
Am I looking for a new harness? Etc?
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I have had this whining noise that I'm not sure what it is. It sounds like its comin from the alternator area. There are three symptoms that are confusing me though, 1st is I only hear this whine as the weather starts getting colder and the colder it is the louder it is. 2nd is it only happens around 1800rpms like when it's getting ready to shift to the next gear. I can get it to whine when I'm parked and bringing the rpms up. 3rd is after 10-15 minutes when the truck is warmed up - no more whine. The truck is used very little duing the summer and I had this whine all winter last year. Alternator appears to be working fine and I do plow a few driveways every storm. Money is tight so I don't want to replace the Alternator an find it wasn't the problem.
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I have a 2016 F-350 with the 6.7L diesel in it. Truck has 10,000 miles on it now.
Since about 3 days now it's giving me grief at idle, e.g. sitting at a red light. The idle is very inconsistent, I can see it on the gauge and you can also hear it rev up then slow down. When the idle rpms drop down (below the 500rpm mark) the whole truck shakes for a second then the rpms come back up. then drop down, back up,... and so on. It does it regardless of gear, it's more pronounced even in P or N.
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