Ford F-150 (2009-2014) :: Fuse Blows Using New Trailer
Dec 27, 2016
My father has a 2009 F-150 with almost 25,000 miles. (he leaves it in garage and polishes it weekly) He just purchased a new dual axle trailer with electric brakes and led lights. When we hook up the trailer and press the Brake, turn signal or hazards, we blow a under hood fuse (48 if I remember correctly). When connected to either of his other 2 trailers, everything works and no issues. When I connect my 2014 suburban, the new trailer works perfectly. He does not have a brake controller installed on the F-150 yet. It does have the 7 pin and 4 pin plugs under the bumper.
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I have read and re-read the owners manual fuse section. Can't find what fuse I blew. I do not have trailer brake or turn signal on either side. I do have running lights on the trailer. Which fuse or fuses control the brake and turn signal lights on a 2012 F-150 ecoboost. I had them all a month ago, but bought a new trailer and first time I pulled it the lights went out. Figured I blew a fuse, but can't find the one! No power at the receiver.
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I am having a problem with trailer lights and an 03 350. When the truck is in reverse the fuse for travel trailer running lights and tail lights blows immediately. Changing plugs on the truck did not work. Truck has been hooked up to 4 other trailers including another travel trailer with no problems. Our travel trailer has been hooked up to an 08 and a 2011 truck with no problems. Fuse 38 20 amp. 7 post rv plug.
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I have a 2012 Ford 4x4 crew cab 150 xlt. 15,000 miles. When pulling my dump trailer I was stopping to turn and the transmission disengaged. Once I turned the corner coasting the transmission kicked back in again. During this happening pushing the gas did nothing but rev up engine. My dealer said if this happened that a warning light would of came on or a wrench would appear on dash but it didn't. He said then it didn't happen. This happened 3 times in 10 miles of driving. I had it in tow mode.
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Today while towing a 10ft trailer with a golf cart my truck seemed kind of under powered.It has the 5.0 with 3.73 rear end.When I got to where I was going I looked under my truck and there were spots all over the rear end and axle and frame that looked like oil or transmission fluid. I cannot find any noticeable leaks. The air temp today was 100 and the transmission gauge stayed around 200.
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I have a 2011 Ford F-150 XLT. I did take the fuses out of the glovebox and installed them. So trailer lights and blinkers work fine. I just purchased a small teardrop tailer. My problem is that the trailer lights are always on when plugged into the truck.They are on even when lights are off and key is out.
I am assuming that the problem is with the wiring of the trailer harness but I wanted to ask here first in case the problem might be with the truck. I have never had a trailer so I am unsure if the 7 prong plug is always hot. Obviously it is on my truck. Is this way it should be?
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Ok we have a 2012 F-150 and are trying to hook up a 16ft trailer but have no lights. We know the trailer wiring is fine (works on other vehicles) but we have no power at the 4 pin trailer connector. We have checked the fuses and all are fine. Having this problem on a 2012?
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I just bought an electric tongue jack for my utility trailer. Rather than mount a battery on the trailer, I bought a jack that has a 7 way plug, so you just plug into the truck in order to power up the jack. However! My '13 Platinum F150 appears to have a very smart 7 way plug. If I plug in the trailer, everything works fine on the trailer.
If I unplug the trailer and use my tester to check the power inside the 7 way plug on the truck, there is nothing. So when I plug in the jack, which only has 2 tabs on it's 7 way male - positions 4 and 1 (positive and negative since they are red and black) it does not turn on. I wired direct to my battery from the jack 7 way plug and jack works fine.
So I'm guessing that the 7 way plug is not powered up until it senses a trailer is plugged in somehow? Is there a way to override this? Also the 4 flat on the truck was dead when I put the tester to it as well. Maybe same thing? If not, I'll have to hard wire the jack into the trailer wiring harness as a work around I suppose.
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My wife backed the truck into a pole and bent the driver's side bumper and one of the ears on the trailer hitch (the part that bolts to the frame). I bought all the parts that need to be replaced (the left bumper end, the hitch itself, and the plastic bumper cover), gut am hesitant to try to change it all myself. How hard is it to change out all these parts? Is there a write-up any where out there for this?
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Hooked up to my trailer and I have running lights but no turn signals, brake lights, or trailer brakes. I pulled plugged in my other vehicle to the trailer and everything works fine. My truck is a 2011 with the factory trailer brake control and pigtail connection. It worked fine last year.
I checked the connector with a test light and there is only power to the running lights. I then disconnected the plug at the back of the trailer connector and tested there and got the same results. Are there particular fuses or relays I should look at?
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2010 F-150 owner. Why my left trailer-stop/turn will not work on any of my trailers. This issues has happen to me in the past due to a wire grounding out in one of my trailers, I have fixed the issue in the past by changing the 20amp trailer/tow fuse, this time the fuse looks fine and I am still not having any luck finding the issue. I have went through my manual to see if it could be a different fuse and they all seem to check out ok, I have also messed around with the relays and they seem to be fine too?
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Just returned from an 8500 mile travel trailer trip with my 2012 F150 with EcoBoost. Couldn't be happier with how the truck performed. Did discover, however, that my 7-pin connector does NOT charge trailer battery while driving. Wasn't a problem this trip, but could be an issue when dry camping (no electrical hookup). Is it a big deal to get my connector to charge trailer battery while driving?
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On 2010 150 had running lights for approx 1 year on both 4 wire and 7 wire then none. Nothing changed, Checked fuses, all ok. Checked on back side of plug, nothing. Everything else works.
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Setup my Reese brake controller on my 2011 today. The lights, turnsignals, and brakes work when I push the brake pedal. But when I move the lever on the controller, I get nothing. Also, on the info screen, it still says trailer disconnected. What gives?
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I have a 2010 f-150. Started having issues with the blend door actuator located behind the radio so replaced that a couple months ago and fixed issue. Now the a/c will only blow through the defrost and floor vents. I replaced the lower blend door actuator thinking that might be the culprit, but did not fix the problem. What the solution might be.
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So the other morning I drive the 140 miles out of town to work for the week. when I pull up to the job site the cooling fans were revving really really high! never heard this before. then it went back to normal after I opened the gate and parked my truck and shut it off. I'm driving maybe 5 miles tops to the job and back to the motel every day. however that is far enough that my heater should be warming up and it's not even coming close to warm. it blows cold air. and to compound that I'm not sure the cooling fans are even working. they don't appear to be. Is there a connection here?
2011 xlt 4x4 super crew.....
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The owner's manual for my 2012 STX 4x4 is of no use. There is nothing in my truck that resembles the illustration.
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I have a 2013 F150 SC 2wd with a 5.0 180k mileage. I have codes for all 4 banks coming up. P141 P135. I'm trying to find out which fuse works this circuit and the OM does not have it listed. What is the fuse position for thin?
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I have a 2013 f150 & the fuel pump relay fuse burnt out. I unhooked the battery cable "wasn't thinking" & took the fuse out & replaced it. Now my truck wont get over 3000 rpms & is driving like i got bad fuel or something. & now its throwing codes about my trac & I don't know why. Just from unhooking the battery cable & hooking it back up. What it is??
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The other day my left light went out. I ended up taking out the sockets and realizing that it was the green wire that goes into the socket. I fixed it and it worked for a while and now both my lights went out. Hi and low. Every time I turn my light on I hear a weird click noise coming from the fuse block. It sounds like a bad relay. What it is?
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There I was driving down the road, minding my own business. My phone was charged full so I reached to disconnect the car charger and the tip fell off the charger and shorted out my cigarette lighter socket. My owners manual does not show where the fuse is located in the fuse box? It does not mention the "lighter fuse" by name......
I called the Ford Dealership parts department where I purchased my Lariat and was told I he could not nor would not tell me which fuse is blown. Everything else seems to work. Haven't tried my sync lately, better do that. Where the fuse is? My fuse box is inside engine compartment by the radiator.
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