DEF problem
Thread Starter
|
5th Wheeling
Joined: Dec 2014
Posts: 40
Likes: 7
DEF problem
So my new 2016 F450 sends a message: 500 MILES LEFT ON EXHAUST FLUID............. so I fill it up and am surprised it only requires about 1 gallon.
Then I started the truck and it says: EXHAUST FLUID 471 MILES LEFT.
So I take another short drive hoping things will improve and now it says:
EXHAUST FLUID 462 MILES LEFT. Any ideas as to what's causing this?
I am not happy about the prospect of being shut down in 400 miles.
thanks for helping.
Then I started the truck and it says: EXHAUST FLUID 471 MILES LEFT.
So I take another short drive hoping things will improve and now it says:
EXHAUST FLUID 462 MILES LEFT. Any ideas as to what's causing this?
I am not happy about the prospect of being shut down in 400 miles.
thanks for helping.
Cargo Master
Joined: Jan 2015
Posts: 2,824
Likes: 39
From: Boise
So my new 2016 F450 sends a message: 500 MILES LEFT ON EXHAUST FLUID............. so I fill it up and am surprised it only requires about 1 gallon.
Then I started the truck and it says: EXHAUST FLUID 471 MILES LEFT.
So I take another short drive hoping things will improve and now it says:
EXHAUST FLUID 462 MILES LEFT. Any ideas as to what's causing this?
I am not happy about the prospect of being shut down in 400 miles.
thanks for helping.
Then I started the truck and it says: EXHAUST FLUID 471 MILES LEFT.
So I take another short drive hoping things will improve and now it says:
EXHAUST FLUID 462 MILES LEFT. Any ideas as to what's causing this?
I am not happy about the prospect of being shut down in 400 miles.
thanks for helping.
Thread Starter
|
5th Wheeling
Joined: Dec 2014
Posts: 40
Likes: 7
one gallon is all it was able to take. It is full. It was only down 1 gallon when the 500 mile message went on.
Trending Topics
Cargo Master
Joined: Jan 2015
Posts: 2,824
Likes: 39
From: Boise
Oh ok. Like said, probably a bad sensor or maybe some reset at dealer can be done.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Top 10 Ford Trucks Coming to Mecum Indy 2026
Brett Foote
5 Best / 5 Worst Ford Truck Wheels of All Time
Joe Kucinski
Ford Super Duty: 5 Things Owners LOVE, 5 Things They LOATHE!
Joe Kucinski
Every 2026 Ford Truck Engine RANKED from WORST to FIRST!
Michael S. Palmer
The Best F-150 Deal of Every Trim Level (XL through Raptor)
Joe Kucinski
Super Moderator
Joined: Aug 2008
Posts: 37,370
Likes: 1,858
From: Frederick, MD
normal unloaded def should last upwards of 7500 miles. About the length of the oil change.
Loaded I see around 4500 miles.
unloaded is more regens and less def.
Loaded is the opposite.
Loaded I see around 4500 miles.
unloaded is more regens and less def.
Loaded is the opposite.
Mountain Pass
Joined: Feb 2016
Posts: 193
Likes: 10
Is this due to when loaded the exhaust stream is getting hot enough to go into "Passive Regen" when required?
Cargo Master
Joined: Jan 2015
Posts: 2,824
Likes: 39
From: Boise
Mine was a '14 XL. A message would show up on the cluster screen when I hit the 500 till empty mark. It would stay on until I filled it with at least 2.5 gallons.
Super Moderator
Joined: Aug 2008
Posts: 37,370
Likes: 1,858
From: Frederick, MD
Yes, most of the time when I tow my exhaust filter percentage stays at 0%.