When the battery light on my F-150 came on (about 100,00), the dealer put on a new alternator. This has now been done 3 times in the last year, and the battery light still comes on intermittently. They have no ideas about what to do.
View 3 RepliesHave 1994 F150 with 5.0L engine. Check engine light, intermittent on due to overheated O2 sensor. Replace sensor, light goes off. The sensor will last longer in cold weather but will fail with same code. Is the overheating due to an electrical problem from the ECU or ambient tempreture. Would like to sell truck but don't want to hand the buyer a dozen O2 sensors.
View 3 RepliesBattery warning light came on a couple of times when driving to work in my 2000 F-150. I had thought that the instrument lights had looked dim for a couple of days. The warning light was only when the truck was idling and the warning went off as the truck was moving.
View 8 RepliesI have a 1999 F-150 4.6L V-8, and the battery light is staying on. Something is draining the battery. I have taken it to Auto Zone, and they tested the battery (brand new), starter, and alternator - all show good. The only error they can register is "C1226 brake light lamp short." What could be causing this? I had to get jump started at a gas station 2 nights ago. I have checked the alternator fuse, and it is ok. Could the wiring be bad somewhere?
View 4 RepliesI 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?
Came on intermittently other day, got it home then did not start. Charged for a bit, it started on the charger then off the charger a few times I assumed out was the alternator just replaced it. Battery light now on continually, hope I didn't destroy two batteries driving out for 20 mom after light first illuminated, they already to be only one year old. In addition to the ABS light now and the brakes feel unboosted? Hopefully fuses popped?
View 2 RepliesStart 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 RepliesProblem 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.
View 6 RepliesRunning down the road today and the battery light came on. Went on and off intermittently as I drive home and the tuner showed 11.5v. Got home, shut it off (didn't mean to) and restarted it. Tested voltage at the batteries and was over 14. Need to take it for a drive and see if it repeats.
View 14 RepliesMy battery light keeps coming on and off, batteries were replaced by the dealer and checked out good at advanced auto parts.
2002 Limited 7.3L
My battery light is coming on intermittently but the truck seems to be running fine need to know how to test it to make sure that is the problem.
View 9 RepliesF250 LD 99. Battery light flashing from time to time. When it happen voltage gauge in dash go up (but not in red zone so far). All other light are blinking too but not on and of like battery warning light then like stronger - weaker. So far at Internet is said should be ground. I saw one ground at firewall close to negative post of battery but where is other ground? Can it be voltage regulator (alternator)? Did clean battery posts, didn’t work. 4,6 engine. Voltage at battery posts with engine on is 14,7 - 15,1 V. With engine off 12,3 V.
Didn't managed to check voltage when is battery light flashing as it only happen when I drive not at idle.
I have been having an intermittent (2 times in the past 2000 miles) oil pressure gauge not reading. As I own a 6.0L I understand that this is just a pressure switch in reality and if the engine was starved of oil the HPOP system would kill the engine. The first time the oil gauge went out it was raining out. The second time was after going through a carwash and getting the underbody wash. At this time my battery light also came on for a few seconds.
Both problems seemed to go away after an engine restart. Today it is snowing lightly and my battery light came on again. I happened to be monitoring the battery voltage and FICM voltage via OBD II using Torque app. At no time while the battery light was on today did the battery voltage drop below 13.5V. The FICM was also stable at 48.5+/-.5V.
As the battery voltage read by the PCM is not actually dropping and the previous oil pressure gauge and the fact that my left blinker indicator is out I am thinking I may have electrical issues with the gauge cluster. I have never had these issues while driving in dry weather. Where do I start troubleshooting this? Also I am going out of town for the next two weeks and my girlfriend was going to use the vehicle. Is it OK for her to drive?
I have an 06 F350 with the 6.0 powerstroke. My battery light started coming on and will go out for a while, then come back on. Sometimes it flickers a little. I have checked/cleaned battery terminals (there was no corrosion). I have replaced the alternator. The batteries are just over a year old (10/12). I have not had any slow starting or any other symptoms other than the warning light. I am still having the same problems after replacing the alternator. I have checked with a voltage tester and it was reading 19+ when the light was off. When the warning light is on it was jumping from 12 - 15. This is an old tester so I'm not sure that it is working correctly. (not sure why I am getting the 19+). I'm going to go buy a new tester, but I was wondering if there is something else that could be causing the warning light. I know very little when it comes to electrical issues.
View 6 RepliesAlternator locked up in a parking lot. Replaced it and had to replace pigtail due to a loose wire in the harness. Now battery light comes on intermittently. New alternator is doing fine producing anywhere from 13.9v to. 14.4v. No output voltage correlation to battery light at all. The belt is still in great shape so I don't suspect slipping. Fortunately I caught the old one locking up almost immediately and had recently replaced the belt. Output voltage looks great. Are there any fuses for alternator?
Only thing I can think of that I did...when splicing in the pigtail that connects to the alternator, I briefly grounded whatever wire in the pigtail is hot. Was just a split second, but enough to see a spark and maybe enough to blow a fuse? I've seen people reference an "under hood" fuse box, but I don't seem to have one. My truck is a 2002 CC with just over 100k on the clock.
Just bought my first F150. 1998 XLT 4.6l automatic. 126K miles, looks like it was mostly garage kept. All power, A/C, etc.
Picked it up this evening, drove it home after dark. About a 30 mile mostly highway speed drive. Everything went fine, no problems, no hiccups......Until I turned on my last street, about a half mile from home. The battery indicator light on the dash started blinking intermittently. I didn't notice anything else, just the red battery shaped light blinking.
What would cause this, what should I check? I don't want a big problem when I haven't even transferred the title yet!
I have a 2003 f250 super duty with a v10
i was towing a trailer up and down lots of hills and the battery light on the dash came on. there was no effect on the performance right away. as i kept driving into town i was starting to worry if i would make it.
as i pulled into the carls jr parking lot, the ABS light came on, all the gauges shut off and the truck died just as i pulled into a parking spot.
i figured it was the alternator, had it tested at AutoZone (failed twice) so i swapped it out for a lifetime warranty AutoZone one (very small town, nothing other than an AutoZone)
the truck started after being jumped but the battery light was still on. i figured that the bad alternator killed the battery. the battery was 4 years old and they usually only last 3 years in the AZ heat so i bought a new duralast gold.
the battery light was STILL on after that. the Autozone guy ran his test--- engine off- battery tested fine starting---he said something was wrong with the starter (but it cranked awesomely!) running--alternator tested fine
i just can figure out why when i drive down the road i dash light will turn on and off at random times. the truck seems to run fine. I've even been under the hood shaking the wire while i had someone watching the dash and i cant seem to make the light go on or off
2005 Camry LE 4 cylinder, 141K miles.
For 6 months the battery light has been coming on intermittently, sometimes not coming on for two to three days and then does it again every so often during the fourth day and so on. Until recently, it's gone a record 6 days without coming on.
However, today it's stayed on all day. Usually, when it does come on, it will go back in in a minute or two. I'd gotten used to it, since the car has always started like nothing is wrong. However, tonight the ABS light came on with the battery light, then the Safety Bag light came on. Then, the radio died, clicking, static, then just dim light, The clock dimmed when the headlights were on, and the headlights weren't as bright as they should be. Stopped the car in a parking lot. Wouldn't not start again, but the dash would come on.
Got a jump and the car started up fine, but there wasn't enough power getting to anything to make the car do much of anything. The car didn't seem to have enough power to send to the transmission to shift, pressing the brake pedal made the dash go black.
Sat a while, got the car to start again, with a fight. Enough power to shift getting to the transmission, but quickly all the lights started coming on one by one again, and none of the lights were bright as they should be. Back to square one.
Just the battery? Replaced the alternator a year ago, when it killed the last battery. The current battery is a year to 13 months old.
The Cruise Control on my truck works intermittently. Sometimes it cuts out when I am driving and sometimes it fails to work at all (usually in the morning). Sometimes it will re engage if it cuts out and sometimes it will not re engage for hours.
View 1 RepliesRecently my 2001 F150 4x4 5.4 truck has been misbehaving by being difficult to start at random times. The engine will turn over with however will not fire. After some time, I am able to get it to fire. When this happens the truck start normally for the rest of the day and maybe several days. Around the same time, error codes for a variety of sensors would occur. This problem was traced to a broken PCM connection. When this problem does materialize, no error codes are generated. After some time in repair shop, a probable cause could not be found.
View 9 RepliesMy 2012 f150 AC is blowing out of the defrost for a couple of minutes on start up. The AC will begin to blow out of the dash vents then will switch back to the defrost vents before blowing out of the dash vents for the remainder of the trip.
View 3 Replies