Ford Super Duty (1999-2016) :: 2005 F250 - Horn Blowing Intermittently / Constantly
Jul 13, 2015
The other day I was checking out my parking aids (they kept saying something was behind me when there was nothing there) and the horn just started blowing by itself, constant on until I disconnected the batteries. Been a few days and just got back to working on it, checked the horn switch in the airbag and it is functioning fine. Hooked the batteries back up, no horn, but after a couple of minutes I start getting little honks out of it, then locked on again. Where I should go from here? Truck was parked, switch off, engine off today when I hooked the batteries up. Never started it or turned the key on.
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The A/C on my 05 F250 6.0 recently would not blow out through the vents. So, I replaced the vacuum pump and the reservoir tank. Once I replaced them the A/C still starts through the defrost vents but, after a minute or so starts to blow through the vents. I also noticed that the vacuum pump never stops running. Is this normal or is there something else I need to look for?
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I have 2005 F250 6.0 XLT. I was driving the other night and all of a sudden my dash lights went out. I noticed I was being flashed from other drivers and discovered that my parking lights are not working. A preliminary check of fuses I discovered fuse #17 (15a mini) was blown. I installed and new one and upon turning my lights on, the fuse popped again. My headlights and turn signals work properly. It appears I have a wire shorted to ground somewhere on this circuit.
The truck is completely stock with the exception of an aftermarket radio which I installed two years ago.
I checked all the fuses with my test light and they are all correct (both sides of each fuse). I disconnected the gray connector and black connector in the driver side rear of the truck to isolate the issue. New fuse pops as soon as I turn lights on. I completely removed the tail lights, trailer 7 pin connector , completely removed both headlights. I did not disconnect the roof running lights or the mirror lights. I am completely stumped.
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My 2005 F-250 6.0 liter Diesel FX4 Lariat is blowing AC through defrost only all the time. I have manual locking hubs and when I engage 4x4 it works perfectly through the ESOF switch. So I am assuming the vacuum pump and lines to the hubs are in good working order but there is possibly a cracked line or fuse blown? I've only had the truck for 2 days and it just happened after purchase. I'm a little unfamiliar with checking vacuum but have done reading and I believe I can do it. I am going to get a manual hand pump and pump to 20lbs and loss shouldn't exceed 1lb per minute. I just need to know which direction to look. Everyone else had their 4x4 not working and I seem to be the only one posting that has ESOF 4x4 capability when the defrost only issue is on.
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I have 2002 F250SD, The horn just starts blowing by itself. Bump the horn switch and it stops for a couple of weeks. I've looked at the wires to the fuse box and no wires shorting out the horn wire. I read some very old posts but nothing conclusive was ever decided on, just a lot of guessing. The horn switch has always been sensitive.
Somebody said the air bag is warming up in the sun and expanding causing the horn to blow. Somebody said the horn relay, but in 55 years of working on trucks, I have never had a horn relay act like that. I'm told the horn relay is built in the back of the fuse box and it all has to be replaced. Some say the clock switch. I don't know what that is or where it is. I guess inside the steering wheel. Is it hard to replace?
Where do I go from here....
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Sitting in the house, heard a horn blowing and ran outside to find my F350's horn was blowing. When I pushed on the horn button on the steering wheel it quit. Couple of hours later, it started blowing again. Pushed the horn button to make it stop and removed the fuse so it would not start blowing again. Did a forum search, but didn't have any luck. Short in steering wheel?
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My abs light is constantly on, is it a sensor?
2008 F250, 5.4 l, 4wd .....
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Okay so I have an e99 f250 7.3 the problem all started went I hit a puddle the other day. My horn started going crazy and wouldn't shut off so I had to pull the fuse and relay. After that I found another problem, all my dash lights,headlights and running lights will not turn off unless I pull the battery terminals, it does not matter which way the headlight switch is it can be on or off and they stay on. I did find it though if I pull the negative terminals and put them back on the lights stay off if I turn the switch on and try to turn the lights back off with the switch they stay stuck on again untill I pull the terminals what could be the problem I've looked at every fuse and can't find the probelm.
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I have a 2001 F250 V10, 150,000 miles, gas, very basic truck (no power windows, no cruise, no security system, no power locks, etc). In it's previous life, it was an IDOT highway truck I purchased at auction in 2005. Used primarily to pull horse trailer, less than 2000 miles per year. Stored under cover when not in use. Windshield leaks very little, but generally not used when raining.
Last week, 9pm, horn starts blaring solid tone. I go out and unlock door, open door, it stops. I start truck, still fine, turn truck off. Lock door, close door, starts blaring again. I reopen door, leave unlocked, close door, then get intermittent beeps. I reopen door, disconnect battery because it's late, I was going out of town, and felt bad for my neighbors. Just got back in town, too afraid to reconnect battery and not be home in case it starts going off again. I had last used the truck about 36 hours before the horn started going off, weather about 70 degrees overnight.
I've read other threads, but can't find one that fits (I have no cruise, kept out of rain, not freezing cold, not diesel).
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Horn isn't working found fuse blown. Replaced fuse and horn stays on. Swapped relays still stays on. With fuse out pressing left side of horn cover on steering wheel I can feel/hear relay click. Pressing right side not so much. What and where to check? Is there a way to disconnect the horn buttons on the steering wheel?
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What will make a loud blower sound cycle on and off constantly when towing if i turn the ac off it stops....
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I have a 2005 f350 lariat 6.0. My horn, cruise volume, heat and fan controls on the wheel are not working. The airbag light isn't on. I am thinking that it's the clock spring. The stereo controls were intermittent for a while so I think it's the clock spring. I just want to be sure. Anything I could check?
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I have a 2001 f250 5.4 triton. My cb antenna hole leaked water in cab, soaked my fuse block. Horn goes on and off, radio turns on without key in ignition, truck only starts when key is on and I bridge solenoid, and number 4 coil is not firing. I have let truck dry out, fixed the leak. Everything is bad to normal except starting issue and coil issue.
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1999 F250 7.3 4x4 switch on dash with manual hubs. No visual vacuum hoses cracked.
Not sure what this component is but when I wiggle the wire at the orange cap a small motor kicks on.
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I have an 01 f250 5.4l standard. #19 fuse keeps blowing. I hAve taken the gauge cluster out and do not see any wires melted or burned. It blows the fuse as soon as I turn the key over. I have read things saying the overdrive but that doesn't work with mine.
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Got a 99 V10 blowing a lot of oil out of the exhaust pipe, to the point where I could fog the neighborhood, cylinder number 10 had original spark plug dirt down in the hole know one wanted to clean it out so I did put new plug and coil now smokes a lot, also truck has 173559 miles, did a half diesel half used motor oil flush tonight, wanted to go for 15 minutes only made it to 14 to much smoke, will put fresh oil in tomorrow, what could be the problem, piston ring blow by, intake manifold leak, burning what I think is oil could be coolant, head gasket no bubbles in oil or antifreeze and antifreeze and or oil are not mixing. Is it easier to pull the heads off with pulling the motor which looks fairly easy or leave it in the truck.
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2001 F250 5.4. The heater will blow warm air at idle and on the second highest setting, once you start moving or turn the fan up to full blast it instantly cools off. The coolant level is fine. The engine runs at a normal temp.The blend door does work. I just replaced the thermostat, and both hoses for the heater core are hot.
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1999 F250.. What would cause my cruise control to work sometimes and not others. it may work today and not tomorrow.
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I have a 2008 f250 with 5.4v8. The truck starts intermittently. Put key in turn if no dash lights it doesn't even crank or hear a click. If u put key in and turn and dash lights up to starts and runs. U can watch the different lights (instrument cluster) light up independently like a xmas tree. When truck doesn't start if u disconnect battery when touching power wire to battery. Post truck lights will flick on/off if u tap cables to battery and leave on. Lights flicker on/off and then stay off. (Don't know why shouldn't flicker at all) after disconnecting and reconnecting battery truck will or will not start still depends on if dash lights come on before cranking.i replaced battery, starter, alternator, all the ground cable connections and wire cleaned. I haven't replaced the power side but are clean.
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My Blower motor is intermittently going on and off. After messing with it for a while it seems to stay on. Motor may be going out. Not real easy to change the blower motor on this 2008. Haynes manual says to take the 2008 and up trucks to the dealer.
2008 F250 4DR 5.4L
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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
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