Ford Wiring/Electrical :: 1998 F150 - Truck Won't Start With A Fully Charged Battery
Jan 2, 2015
I have a 1998 Ford F-150. It has an issue with starting sometimes. The truck won't start with a fully charged battery but when I hook it up to a charger, the truck starts normally. It was going to get the wheels aligned today and when the mechanic went to drive it off the ramp, it wouldn't start. I told him to put a charger on the battery and it started right up. Without the charger it just cranked over and wouldn't start. It doesn't do this every time I go to start it only occasionally. The mechanic had no idea what the problem was and has never heard of this kind of situation. I'm assuming it is an electrical problem but I'm not an expert with engines. The battery was fully charged at the shop and the battery is a year old.
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My F250 is acting like the battery is almost dead but its not. I've checked all the grounds I can think of, used jumper cables and clamped right to the body and still nothing. I put my battery charger in place of the battery and my charger almost caught fire! Where are all the ground points at and points to check? It was doing fine then this. I only found 3 ground points on the block and I bypassed all of them and nothing. There are 2 large on the front of the block, I was able to get one loose and "clean" it but not the other. The block to firewall is currently off so I can clean it in the morning.
But it didn't do anything. I can clamp anywhere are get the same results. There are a few threads about this truck and trying to get it back into shape. When it worked, when I turned the key on, gauges worked, RABS, Engine, and Battery light came on, GPs kicked on, etc... now, I get a very faint Batt light, Erie dinging, and not even the stereo now. This truck has been an electrical nightmare since day one. Spent 4 days on just under hood electronics alone. Haven't even moved towards the back. Also, Instead of using a 2/0 AWG wire to the starter, Can I use two 1/0 AWG wires to it instead since they used two separate grounds? It also still has a 2G alt.
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My 85 f150 5L is parked to far in into my alley.. the last time i saw my keys i moved it up to water the plants that it was tucked almost on top of.
ive been looking for the keys for 2 months.. the truck isnt being driven at all but i think my neighbors are getting mad at it being out so far.
I can get in the engine bay, and i have jumped the starter on our big trucks at work before.. but what wires do i have to join to put the ignition into the run position?
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My neighbor's kids truck battery drains from full charge to "no start" in 1-2 days. 1999 Ford F-150 w/ 4.6L engine. He has already.....
1) Replaced the Battery.
2) Replaced the GEM module.
3) Replaced the Turn Signal Relay.
He did all this before I looked at it....
I checked the following....
1) Truck off, doors closed, hood open... Amp meter shows 3.6 amp draw. When 1st hooked up, shows 4.2 amps... after a while drops to 3.6.
2) To isolate the draw, we pulled fuses while checking current draw at battery.
a) Under Dash fuse Panel. (Yes, with door closed) We remove fuse #15 "stop lamp switch, speed control, brake shift interlock, ABS, PCM,GEM, RABS test connector". (Really... couldn't be more stuff?)
b)Under the hood is another fuse box (drivers side). We remove Fuse #103. "Junction Block Battery Feed".
3) Found that if we remove the #15 fuse under the dash with the door opens, all interior lights flash on/off at about 1 second intervals... weird.
4) Again, another weird one... with the fuse #15 removed and door closed, the "ABS" indicator and some other indicators and dash lights are staying partially lit... not fully lit.
5) The only "aftermarket" stuff i can see is a dealer installed trailer brake system. Wiring looks professional and disconnecting it does not remove the amperage drain.
I'm hoping that one of you wizards will give me the "slam dunk"... if this happens, it must be that. Can I be so lucky? And, yes. I have my own '06 F-150 that i absolutely love. 6-cyl., manual trans, stripped down without even power door locks... my kinda technology.
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Some background, my truck has been sitting in the garage for a good month and I haven't started it. Been putting in 6 days a week for over 2 months at work, 60+ hour weeks. Today, I start the truck, it immediately dies. Successive attempts same result, blue smoke out the exhaust. I kept it running by revving it up but then it dies again. It's the original battery, 5+ years old now. MM shows 12v at rest, drops while cranking. I put the charger on the battery for a bit while I came inside to ask this, it's on trickle 2A and its at a 7 on the dial, and it goes to zero when fully charged.
I've been thinking I'll need to replace the battery before winter, but I'm hoping it's just that since its discharged that's why it won't stay running? Any thoughts? I have had zero issues with this truck but having a company truck over a year now, it sees very limited action. 2010 5.4 with just a tick over 40K, oil is good, air filter is clean and free of obstructions. We do live in the woods and have critters that hang out in the garage, like squirrels and chipmunks but I'm not seeing any evidence of chewed wires that I can see. It's in the garage and using a droplight I don't see anything obvious. Maybe it's as simple as I have to take the work truck and get a new battery I hope...
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We bought a new battery the van would not spark when the battery was fully charged but when the battery gets low it start to spark...
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So I bought a 2006 Prius from a dealership and drove it a few times in the first week I got it. The next 5 days or so I didn't use it, until today when I tried to start it up. The car wouldn't unlock with the key remote, so I opened it manually with the key. Then I tried to start it up, nothing. I then took a battery charger and hooked it up to the 12v battery under the hood. There was a constant beeping noise (like you were to honk your horn) then it stopped about 3 minutes later.
I charged it until it was fully charged (a green light pops up when it's full), but the car still wouldn't start nor were there any lights on the dashboard. I then opened the trunk and charged the battery until it was full, it too made a honking noise for a while then stopped. I saw all the lights (ABS, orange triangle, and others) light up so I thought maybe I was on the right track; however when the charger light turned green I unhooked the battery and tried to start the car. Again, no lights on the dashboard and nothing when I try to start the car. What is going on???
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I 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?
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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' ....
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Problem 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.
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I have an 08 F150 5.4L with about 68k miles. When the temperature is 40 degrees or colder it will not crank. I had the same issue with my 2005. I can turn the key and nothing, lights, radio and everything work. The dash display has dashes all the across for the miles, temp and compass. I have found out that it doesn't matter if I leave the key forward in the run position or try to crank, it won't do anything.
Battery is good and no problems with the truck. After the key is in and I give it anywhere from 15 to 60 seconds you can hear an electrical click real faintly and see the red security light come on and then the computer display comes on and then I can start with no problem? What could this be? My dealership has no clues and I can get it to act up because after I get it there it starts with no issue. The remotes work fine and this issue was why I got rid of my '05.
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I just got my Prius v for few days. I noticed that I only saw the battery bar fully charged once and for a very short time. Also, when I idle my car for a period, the battery would drop to three to two bars. Is it normal or there is a problem to my battery? I got 49500 miles on it,
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Today I was driving up to the highlands, and there is a hill I have to climb called 2 mile hill, it's an 8% grade, I started the climb with 7 green bars on the display, and the engine revved to what sounded like full pace (5000rpm) but I paid attention to the battery and it was actually being charged despite the situation. I got to the top of the hill and the battery was showing all 8 green bars. I'm shocked because I was going uphill at 65-70 MPH and it fully charged the traction battery.
I thought I heard a couple years ago that every couple months, the Prius will do this thing where it will fully charge the battery or something like that because of memory effect of the cells? Why it did this?
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2000 XLT F150 4.6 - New starter & solenoid(s), battery cable & fuse links good.
When i turn the key, I hear one single click and the power cuts out entirely. I can't attempt a second start or turn on the lights or have any power going through the truck until I disconnect the battery for about 10 seconds then reconnect. Electrical becomes live again, then when the ignition is turned the electrical cuts out again. I do hear a single cluck at the starter (probably attempting to engage when it cuts out) and a clunk right at the inside fuse box (drivers side).
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I have a need for a 12-volt signal to indicate the engine is in start or run mode. I would like to pull this from the engine compartment but I'm not sure what would be the best or easiest way to do this. The 12-volt signal is not used to power anything so it will draw very little current. I have a 94 F150.
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1993 Chevrolet S10 Blazer will not turn over the battery is fully charged when key is turned there is nothing not a sound only smoke coming from a wire on top of fender under hood.
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I’ve searched for an answer to my question but have not found it yet.
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My dad's 2004 Prius start despite the auxiliary battery being fully charged. No lights come up on the dash, except for the door ajar light and the blinkers when the car is locked with the key fob. Also, we cannot scan any codes because the car doesn't power on at all.
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2008 Prius gen ll.. I had to take an unplanned out of state trip this week. For most of the highway time (2 days each way at +/- 65mph) the hybrid battery was almost always fully charged(green bars). The arrow every few seconds pointed towards the battery indicating charging even though the battery showed all green bars. Every now and then, several times per minute it would out pulse a short blast of energy to the system but not enough to bring it down to blue bars.
MPG was down about 10% . P>G didn't seem to except when I was in town. Taking my foot off the gas pedal didn't always result in the 99.9 indication unless I was going down an incline. I went from Northern Michigan to South Louisiana so temperature wasn't the culprit. The only thing different is that my 12v ignition battery failed just before leaving and the dealership replaced it.
At normal speeds, when I pulled off the interstate for gas/food/sleep the system worked OK, blue bars charging and discharging and good gas mileage. P&G worked normally. I've had this car for 5 years now and only a few times over that period have I noticed the hybrid battery fully green.
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I am trying to hook up my power door locks to my command start. I am having trouble getting it to work. Ive tried a number of relay diagrams from the12volt.com. I've tried actuators/reverse polarity and it blows both my factory door lock fuse and the fuse I have supplied to the relays. Ive also tried 5 wire alternating 12 volt positive door locks, and 3 wire positive door lock combinations. Both of these combinations the relays click back and forth fine with the actuators unhooked, when I connect the actuators the doors unlock with the factory switch but when I unlock with my remote it blows the fuse. How to properly connect the actuators?
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I have a 2.5L 2010 camry se ... Car was running perfectly fine last night. The next morning all the lights were on but when i turned the key to start it up, i just heard a click and all the lights shut off. Checked the battery with voltmeter and its reading fully charged but lights on the dash are no longer lighting up. Starter problem?
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