Ford Wiring/Electrical :: 1999 F150 - Fuel Gauge Indicates Empty At All Times
May 29, 2014
My fuel gauge indicates empty at all times. The first suggestion I received was to replace the sending unit in the gas tank. I did that but the gauge still indicates empty.
I tried the HEC Dealer test mode and I now know that FUEL reads 255. Which should be an 'open' state. The connector near the fuel tank does appear to be making good contact, so my suspicion is a broken wire somewhere between the rear of the truck and the front.
I tried following the wire on it's way towards the front of the truck, but I quickly loose sight of the wire as more branches enter into the wiring harness. Where does this wire end? Does it terminate in the engine compartment, at the instrument cluster, somewhere else?
I just can't figure out how to narrow down where the break in the wire might be. Or am I chasing down the wrong root cause?
View 1 Replies
Advertisement
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' ....
View 5 Replies
I have an 01' f150 that everything is going out on. I've replaced the GEM module thinking that's what it was to no avail. First thing to go was all four windows which have currently been stuck halfway down for 2 weeks. It's stalling out during idle like it isn't getting enough fuel to it. Brake and engine light on dash are staying on. Radio, interior lights won't come on. Will not come out of park once in. I have to do the old forward, back, middle key trick to get it out of park into neutral so I can start it and go. I've also checked all fuses and relays under dash and under Hood.
View 3 Replies
I have a main tank and an Aux tank with a gauge selector switch. I believe I may have a bad fuse as the indicator has stopped working. Where it is on the fuse block??
1978 Ford F-250
View 1 Replies
I have 2 1986 Ford F250 supercab I switched cabs to put the better cab on my truck power windows wipers heater blower motor all light signals work no fuel gauge power or fuel pump power no power to the inertia switch
View 12 Replies
OK, this one has me stumped...I have a 93 F150, 302 with the E4OD. I know the transmission needs to be rebuilt (probably a bad pump). When I put it in reverse, the engine will start to bog down and will die unless I put it back into park or neutral.
If the engine does die, the fuel pump does not prime with the key "on" and the engine obviously will not start. If I let the truck sit for about an hour, the fuel pump primes like it should and the engine starts right up. The fuel pump shut-off does not trip and all fuses are good.
View 5 Replies
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?
View 5 Replies
Looking for a wiring diagram for a F-150 XLT LARIAT 5.8L 4BBL, all the books I have looked at show the wiring for this year with fuel injection and this truck came with a 351W with a Holley 600 4BBL, I have a few wire's in the engine compartment that melted away all the insulation, they are located close to where the harness passes the firewall before the ignition module. Is this a common problem on old models ?. Need a clear copy of the correct diagram for a f-150 1987 with carburetor, how I can get a copy so I can fix this problem before it gets worse.
View 3 Replies
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.
View 8 Replies
Ever since January My fuel gauge has been acting up big time. I can have any amount of gas in my tank at any given time and the fuel gauge will fall to empty resulting in the fuel and check engine light coming on. The gauge will then return to its position (it still doesn't read correctly) and the check engine light will stay on. I took it to the ford dealer and they said to replace the entire fuel sending unit assembly. I bought the oem motorcraft fuel sending unit assembly and did it myself. The only problem is, I still have the issue. I'm currently checking fuses and relays, By the way, my truck is a 2004 f250 fx4 5.4
View 2 Replies
I have an 03 f350 4x4 cc long bed and I seem to be having a problem with my fuel gauge. It doesn't show the true amount of what's in the tank and because of that I have run out of fuel a few times.
sometimes when I'm driving the light will come on and the gauge will drop all the way to empty then a little later it will go to almost full even with only putting 10 gals in the tank.
Any fix for this or do I need to replace the sending unit?
View 3 Replies
I have a 2001 f250 with the 5.4. from what I have read i should have the 38 gallon tank. i have been really questioning the accuracy of my fuel gauge on empty with the light on 25 gallons and the fuel pump will click off and after i drive i can park and my fuel gauge will read lower than what it was when i pulled into the driveway with. me and the wife went driving yesterday and we pulled back into the driveway on half a tank this morning I went to go run some errands and when i started the truck the gauge was almost on a quarter of a tank my driveway is flat and after driving for about 35 minutes the gauge was still in the same spot and did not move up nor down.
I have a locking gas cap cover so i know someone is not taking gas out. I have changed the fuel filter and tried numerous different fuel system cleaners to try and see if maybe the contacts on the float in the tank are dirty nothing has changed or gotten any better. I have checked the wire harness from the top of the tank and followed it up under the hood and found no drop in voltage or cracked or damaged wires. I checked with my multi-meter I used my fluke meter not some cheap one. Don't know if the gauge is reading less or more from getting gas i am thinking it is showing less than what is in the tank. What could be my problem?
View 3 Replies
I am a beginner when it comes to anything involving wiring. I am looking to re-wire all of the wiring coming off of the instrument cluster gauges. Once I have completed all of the wiring on the gauges, I may feel confident to move onto something else. As of rite now, it appears as though my truck is still running on all of the original wiring, and over the past few weeks, I have been having many wiring related issues. I found a schematic that includes the wiring for the gauges that I am going to go off of. I have a couple of questions before I begin.
1.) On the schematic, it shows connectors such as "Connector G" which is moving all of the gauges wires to there locations. Do I need to use a specific Ford connector, or could I purchase a new connector at any hardware store that carries them? As far as I am concerned, connectors do the same thing as all other connectors. (Let you connect and disconnect for easy instrument cluster removal.)
2.) I am not looking to purchase one of those expensive wiring harnesses. I would like to just purchase some wire that I can cut / use myself. What brand / type of wire should I be looking to purchase? I do not care if it is striped / colored as I will use wire tabs to name / label each wire.
Other than that, I feel confident enough to attempt something such as this. Here is the wiring schematic I am going to use.....
View 10 Replies
I bought a 2006 F250 6.0L a couple of months ago, from a dealership. It's been bulletproofed already, has an intake, coolant filter kit. Has 95k (mileage). Today, my fuel gauge dropped to empty from 3/4 of a tank for a couple of miles and set off the CE light. I hooked my scan tool to it, to clear the code (P0460).
After just checking other things out with the scan tool. I cleared it and went on... I had to run to the store, later on... I was pulling out of the neighborhood and the gas pedal was a lot more "touchy" and the truck, responded to it and it launched pretty good and blew a good amount of black smoke.
Do any of you think this has/or had a tuner on it and I may have activated it with my scanner?
View 6 Replies
i have a 1999 rodeo the fuel gauge will drop to empty when you start the vehicle. the warning light will flash. than as you drive the fuel level will return to normal. the dealer says this is a regular problem and he has replaced at least 12 of then this year. i have called isuzu about this problem and they say they know nothing about this and i should have the problem checked out at my local dealership. i guess my question is do i really have to replace the $350 fuel pump.
View 14 Replies
I just bought a used 2004 F-350, 4x4, crew cab, short bed, 6.0L diesel. I'm having a WTF moment on fuel. Gage indicates just under 1/4 of a tank of diesel but the on-board computer is flashing like crazy stating 5 miles to empty, what the hell is that all about?
View 1 Replies
I have a 2004 F150 XLT 5.4 L 79,000 miles. Yesterday i was driving home turned a corner and the low fuel light came on and the fuel gauge is well below empty. I had approx 1/2 tank of fuel when it happened. I have since filled tank all the way but the gauge will not move and low fuel light stays on. Everything else is working fine! I have never run the truck low enough on fuel to make the dummy light come on.....
View 5 Replies
Here's the breakdown. I have a '95 Ford F150 that I bought the previous year and it has been nothing but a problem. The most recent problem is the attempt to turn on the headlights. I will pull the plunger to turn on the headlights but I will only get the parking lights and when attempting to turn on the high beams I still get nothing. The only way that I get any sort of lighting is if I pull on the turning stick (almost like doing a manual override on a tripped wall plugin). Now here's the kicker. I still have parking lights, brake, tail, cab, and dash lights. Winter in quickly approaching and the nights are already getting dark, pretty soon the days will be just as dark.
View 3 Replies
I got my first truck today and it's a 1988 Ford F-150 and it runs great! The only issue is that the speedometer doesn't work and I won't be able to register it until it does. I was wondering what I can try out to maybe fix the issue and if not, how I would replace it. Every other gauge works, it's just the speedometer that isn't. The needle doesn't move at all it just sits at a 0 all the time.
View 8 Replies
I have been trying everything to get my speedo working on my Ford. It didn't work for 3 months after I got it then I decided to put some gear oil on the cable. This made it work for about 200 miles then it would only work with the clutch in and then not at all. I've replaced the speed sensor(not one on rear end the thing the cable goes into), and the gear that goes on the end of it. If I hook a drill up to the cable the tach moves. Could the cable be stretched or just needs some speedo cable lube?
View 5 Replies
My center brake light went out a month ago. Thought it was the bulb so replaced that, still didn't work. Checked the fuse and its not broken so my guess was electrical?
Hasn't come on once that I know of but I was randomly walking behind my truck and the light was on. Truck was off lights were off and key wasn't in the ignition.
Went and turned my truck on and turned the lights on and the cbl stayed on. When I switched my lights off it went out and stayed out.
Now I'm definitely thinking wiring but not sure where to start fixing?
Oh and it's a 1990 F150 XLT
View 2 Replies
