Ford Super Duty (1999-2016) :: No DEF Warning Until Limited To 50 MPH


Aug 1, 2015

So I am having yet another problem with my 2015 f-350 .... We did not receive any warnings that the DEF was empty until MPH was limited.

2 1/2 gallons was added to the tank less than 1,500 miles ago.

Heat problem many have been solved but will not know until winter, see this link [URL] ....

Because of the unreliability and unpredictability of the truck we are now filing for lemon law under NY state law.

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Ford Super Duty (1999-2016) :: 2001 - How To Know If Have A Limited Slip

How can I tell if I have a limited slip in my '01 F250 4WD? I need to know if I need the additive for the gear oil.

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Ford Super Duty (1999-2016) :: How To Check For Limited Slip Differential

I am getting ready to do my both differentials and need to know if I have limited slip or not on the rear, what is the best way to tell?

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Ford Super Duty (1999-2016) :: Gas Cap Warning Comes With CEL?

A couple of weeks ago, the gas cap warning message on my 5.4L showed up on my dash. Didn't think too much about it, figured to get one next time I was at auto parts store.

Then, a few days ago, the CEL came on. But truck seemed to run fine. As I was about to leave on a long trip this morning, I had the codes scanned just to be safe, and as expected, it came back with only the gas cap code. I was running late, so I just drove (yeah, yeah, I know). The CEL is still on.

I've also felt it hesitate a few times when the rpms got down to about 1200 (going up a hill pulling a trailer). Didn't think much, my diesel always did the same thing.

Well, tonight, a few miles down the road after I filled up a nearly empty tank, the CEL flashed for a few seconds, then quit, but still on.

Can all of this be about the gas cap? I saw some talk about fuel pumps, misfiring and catalytic converters getting ruined on here, but it seems like it could all be fuel related, and the gas cap might be the culprit.

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Ford Super Duty (1999-2016) :: DEF Warning Came On / Cannot Fill Tank

Just got back from a 2500 mile trip and the 800 mile DEF warning came on. Went to a DEF pump but it just filled the neck. Went to another DEF pump, same . Went home and used a Ford DEF jug with the Ford spout. It still will not go in. If I squeeze the jug, I can hear a little bit dropping into the tank.

The vent and fill pipes are not kinked. The vent hole in the fill tube looks clear. I washed off the top of the tank since there is a vent there.

Still no fill. I do not have a bore scope to look in the fill tube. I ran a 1/2 inch flexible hose down the fill tube until it stopped. Still no fill.

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Ford Super Duty (1999-2016) :: 2015 - All Warning Lights Came On?

On my way into work this morning, all the warning lights came on, along with the check engine wrench. My display was showing that I was overheating and the gauges stopped working. While this was happening, there was no noticeable change in the way the truck was performing.

After about a minute or two, the warning lights shut off and the gauges worked again as normal. The gauges did not show that the truck was overheating at that time. Another few minutes went by and the same thing happened again. Then the gauges came on and the warning lights shut off for the second time, it did not happen again for my 10 minute ride to work. On my way home this evening, this did not happen again.

The truck seems to be charging and the battery seems to holding a large as well. The truck is a 2015 F350 XLT 6.2 with about 9700 miles on it.

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Ford Super Duty (1999-2016) :: Got Low Tire Pressure Warning?

Went to leave for work this morning & got a "low tire pressure" warning...checked at work (isn't it always the last tire you check?), going to have to keep an eye on the left rear..was down to 45

with all the money we spend on these rigs, why can't put in a tpms system that would allow us to see WHICH tire is low?

Any aftermarket system that allows monitoring of INDIVIDUAL pressure? (ultimately, it'd be nice to get a 4 axle system that would "communicate" with the trucks (very basic) system, but also allow monitoring of my RV axles as well)

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Ford Super Duty (1999-2016) :: 2005 - Got Warning - Check Air Filter?

Just had my 2005 F250 a few weeks and the 'check air filter' warning came on

Checked the filter, it looks fine, hasn't come off...it's the cylindrical one.

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Ford Super Duty (1999-2016) :: Mounting Warning Lightbar With Sunroof

Has mounted a full size warning lightbar on truck with a sunroof? My concern would be where the lightbar cable comes in through the roof possibly interfering with sunroof operation? The truck is a 2013 F-350 Crewcab.

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Ford Super Duty (1999-2016) :: F250 4x4 460 Dies While Driving / No Warning

My 1997 F250, 4x4, 460, auto has started dying with no warning while driving from 5 to 30 miles. Changed the fuel filter and the fuse under the hood. Where to start.

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Ford Super Duty (1999-2016) :: F350 Cutting Out / Stalling With No Warning

We have an F350 at work with a 7.3, I believe it is a 2000. The truck is secondhand to us, although we have had it for a number of years at this point. It has a banks powerpak and transcommand system installed by the previous owner (I got the paperwork from my boss but I haven't sorted through it yet to tell you anymore than that), as well as a pac break exhaust break and a transflow auxillary fuel system.

These were also installed by the previous owner. We do not use the exhaust break due to it getting stuck on/closed (probably an easy fix...it used to work properly we just haven't had a chance to look at it) and the fuel tank was removed when we put a different box on the truck, and was not reinstalled. I can't say whether or not it was removed properly, or whether shortcuts were taken.

The issue:

About a year ago, the truck stalled without warning. No coughing or hiccuping, just suddenly the motor stopped. It restarted instantly, and off we went. This happened again occasionally, but not frequently. Over the last month or so this started happening much more regularly, and we also experienced sudden losses in power for several seconds where the engine seems to return to idle, but does not stall.

We haven't been able to determine any pattern to these issues to try and narrow down the cause.

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Ford Super Duty (1999-2016) :: 2015 - Got DEF Light Warning After Adding 2 1/2 Gal?

Had the DEF 500 mile warning come on last week. Second time for this. First time early on when it was new. Put a 2 1/2 gal. container of Blue DEF then and all was well. This time I did the same thing but keep getting the 500 mile warning afterwards. Cancelled the warning a couple of times , and now I am getting a warning that I have 378 miles left on the DEF fluid remaining. Its like the truck didn't recognize me adding the 2 1/2 gal. Also the check eng. light is on now. Thinking thats related. 7,000 mile on truck

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Ford Super Duty (1999-2016) :: Tow / Haul Light On - Check Gauges Warning Came Up - CEL Lit Up

This morning, the tow/haul light came on, tranny temp gauge wouldn't read (stayed below zero), "check gauges" warning came up on the panel, and "check engine" light came on. Truck ran fine/shifted fine, always has.

2007 F-250, V-10, 5-r 110 tranny.

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Ford Super Duty (1999-2016) :: 2013 - Driver Door Ajar Warning?

I have a 2013 F350 CC 6.7L Lariat. The last two days I have been getting the Driver's Door Ajar warning coming on every time I get in the truck. Sometimes it will go off by itself, other times it wont. If I lowly push the door shut, just before the door latches completely closed the light will go off. But as soon as the door closes completely the light comes back on.

I tried squirting WD40 in the lock mechanism as recommended in some older posts for other models. No worky! I searched Fordparts.com, but cannot find a listing for the door ajar switch. Where to find the switch for this warning light?

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Ford Super Duty (1999-2016) :: Tire Low Pressure Warning When Headlights Turned On

Every time I put the headlights on or just the running lights within 15 minutes it trips the tire low pressure warning, how can the 2 be connected? Turn the light switch off and anywhere from 5 to 20 minutes the warning low pressure light turns off. I know take it to Ford but I'm out of State presently and l'll just wait till I get back home next month.

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Ford Super Duty (1999-2016) :: Passenger Side Door Ajar Warning

2008 F-350 Reg reg cab .....

All the sudden got a pass side door ajar warning. I tried doing the WD40 trick but its still there. Do I need to change out the entire latch or do they sell just the door ajar switch ....

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Ford Super Duty (1999-2016) :: Code P0446 And Check Fuel Cap Warning Came On

Got this code a while back (several hundred miles) but have had no runability problems. I know it's the evap canister but my mechanic tells me it could be a myriad of things and he might spend hours on it and still not be able to resolve it. I plan on driving this truck til it's worn out. I've put 125,000 miles on it in 10 years almost all highway. I should be putting much fewer miles on now, only using it when I NEED a truck which should be less and less, mostly for hauling toys.

I hate to drive this thing another 10+ years with the engine fault light on but my mechanic says that if something serious goes wrong it will start to flash. A couple days ago the "check fuel cap" warning came on, but goes off if I hit,the odometer button. I got a new gas cap at Reilly's but it seems like a real POS compared to OEM, very light, and the check fuel cap warning still comes on.

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Ford Super Duty (1999-2016) :: 2011 F250 6.2 - Check Gas Cap Warning On Dash?

I am getting this check gas cap warning on the dash. I checked the cap, looks ok... Should I disconnect the battery for a minutes.. and see if it comes back?

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Ford Super Duty (1999-2016) :: Check Air Filter Light Comes On Intermittently With Warning Tone

I have a 2006 Powerstroke F350. Recently, the "check air filter" light has been coming on. It comes on intermittently, and every time it comes on it makes a warning tone. Super annoying.

I reset the minder, and even tried unplugging it. No change. I think I must have a short in the sensor wiring, but I can't seem to find a wiring diagram that shows the air filter sensor.

Looking for a wiring diagram that shows how the minder is wired? Or What is the part number for the relevant wiring harness?

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Ford Super Duty (1999-2016) :: 2014 F250 - How To Disable Low Tire Warning Light

How to do this, or have had it done? I do have 35x12.50x18's on it. I did go to the tire center here in my town to have them reprogram it but only worked for a few to a week cant remember.

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Ford Super Duty (1999-2016) :: 2006 F350 - Warning Lights With Tone On Startup

2006 350 6.0, on startup the high and low 4x4 and brake lights come on the dash with a constant tone for a minute or two then stop.

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