Low fuel pressure warning
New User
Joined: Nov 2017
Posts: 18
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I had the same problem 2 days ago. Temp was about 5 and it went into limp mode. Took it to the dealer (only 1166 miles) as the check engine light would not turn off. They reset the light, added the fuel gel, all is good. Best of luck.
Mountain Pass
Joined: Apr 2017
Posts: 102
Likes: 15
Power Service is a brand, they have many products. I was told 911 is an emusifier, I wouldn't put that in my truck. However, I was also told their diesel supplement +cetane boost is a demulsifier. That's what I put in my truck for this trip, I'm not worried about it.
Posting Guru
Joined: Jan 2011
Posts: 1,352
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It is not a demulsifier. Many discussion on this across many forums, you were told wrong.
Elder User
Joined: Jul 2016
Posts: 610
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From: Witness Protection Progam
Just a few thoughts.... My 2005 Dodge/Cummins had a Fuel Filter along side the Motor of which it never gave me any problems with cold weather operation. Yes, I did use cold weather additives. Wonder if it's location alongside the motor and the heat from the motor kept the fuel warm and free from icing up. Secondly, the new Ford Oblong lower filter is low to the ground and in a perfect position away from a warm air source. I'm new to Ford and it seems to be quite sensitive to cold weather operation. It's been -22F for the last three night I took her for a drive yesterday.... No issues. Getting ready to head possibly -30+ish next week. Although I won't drive that day..... Additives are a must.
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Hotshot
Joined: Apr 2013
Posts: 10,119
Likes: 652
From: NH
Just a few thoughts.... My 2005 Dodge/Cummins had a Fuel Filter along side the Motor of which it never gave me any problems with cold weather operation. Yes, I did use cold weather additives. Wonder if it's location alongside the motor and the heat from the motor kept the fuel warm and free from icing up. Secondly, the new Ford Oblong lower filter is low to the ground and in a perfect position away from a warm air source. I'm new to Ford and it seems to be quite sensitive to cold weather operation. It's been -22F for the last three night I took her for a drive yesterday.... No issues. Getting ready to head possibly -30+ish next week. Although I won't drive that day..... Additives are a must.
The previous Super Duty diesel had a round filter underneath but it was in the same position. In changing the filters last night, there is a shield around the filter housing that would protect it from cold air rushing under the truck. Most modern diesels have two filters...one down by the frame and one under the hood. These trucks do have a fuel cooler / heater as well. Return fuel would be warm going to the tank.
Senior User
Joined: Aug 2017
Posts: 398
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From: Rush
Glad the filters got it fixed. If you don’t mind me asking, I have watched the video on changing the filters, the frame mount looks straight forward but the engine bay one look like its got 3 different quick connects. Are these pretty simple or do you have any secret tip to remove these or is the video just making it look more complicated than it really is?
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Hotshot
Joined: Apr 2013
Posts: 10,119
Likes: 652
From: NH
Glad the filters got it fixed. If you don’t mind me asking, I have watched the video on changing the filters, the frame mount looks straight forward but the engine bay one look like its got 3 different quick connects. Are these pretty simple or do you have any secret tip to remove these or is the video just making it look more complicated than it really is?
The video makes it look more complicated than it really is. All three connectors are variations of the same. Pretty much just collars that need to be pushed out and/or pulled back to remove. The top filter literally only took me 5 minutes. A step stool is helpful for the reach though.
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Posting Guru
Joined: Jan 2011
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Just got back from two dealers...neither have any 2017 style filters in stock. All sold out or taken by service department since yesterday. I have one ordered for me coming tomorrow. Truck is now running well after dumping half a bottle of anti gel in and driving at 75 mph for 30 minutes. Bought two more bottles. Will change filters tomorrow to be safe. Just topped the tank with diesel and added even more anti-gel. Diesel jumped $0.10 per gallon today but gas stayed the same price. Talked to a tech at one of the dealers, he says they have changed filters on four 6.7L trucks just today that have waxed or gelled. He told me to only use the Ford anti-gel...says the 6.7L definitely doesn’t like Diesel 911.
Senior User
Joined: Aug 2017
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From: Rush
The video makes it look more complicated than it really is. All three connectors are variations of the same. Pretty much just collars that need to be pushed out and/or pulled back to remove. The top filter literally only took me 5 minutes. A step stool is helpful for the reach though.
Gotcha! Thanks for the info.
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Hotshot
Joined: Apr 2013
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From: NH
I must be doing something wrong. Only -14F this morning and she froze up again. Started, but low fuel pressure and reduced power and check engine light. Tried to drive and she won’t do anything but creep and stall. Tank has a lot of Ford anti-gel in it.
Senior User
Joined: Aug 2017
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From: Rush
I wonder if the place you buy fuel has any other people with issues? I fill up at the local Flying J/Pilot only and use the Stanadyne additive. Im not seeing negative temps but it has been single digits at night with 20 degree days and Ive not had any issues. Something is going on for sure.
Senior User
Joined: Aug 2017
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From: Rush
Bad fuel can be more common than you think. This summer my neighbors Kubota tractor lost power, he changed the filters and a tank pump before I got involved. I tried bleeding air, etc. Then I asked when he put fuel in and from where. He said he just filled it up from a local station before it started the issue. I drained the tank and you could tell it was funky, almost like it had gas mixed in. Sent him to Flying J while I drained the rest out. Hit the key and it ran like a top with no more issues.
Its just a shame you should have to worry about such issues but it does happen.
Its just a shame you should have to worry about such issues but it does happen.