Fuel filter time
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Cargo Master
Joined: Feb 2017
Posts: 2,428
Likes: 728
From: Wisconsin
Fuel filter time
First time on this, .......so do I simply drain the water separator valve until the fuel flow stops on its own, and then remove element? I've heard the horror stories of how people got the diesel bath and how the fuel never stopped draining. Just looking for the latest tips before I dive in, thanks.
Senior User
Joined: Aug 2018
Posts: 104
Likes: 0
From: Driftwood, TX
There are two elements, one at the tank and one up front in the engine bay. These cover it pretty well:
https://www.youtube.com/watch?v=NJGaoNH1N-E
https://www.youtube.com/watch?v=2fseeSLAAP4
https://www.youtube.com/watch?v=NJGaoNH1N-E
https://www.youtube.com/watch?v=2fseeSLAAP4
Postmaster
Joined: Jan 2005
Posts: 4,424
Likes: 12
From: BC Canada
For the first time, get your tank below a 1/4before you drain the water separator, then the lower filter, then the upper filter. Sometimes the check valve just keeps draining, and while it’s not supposed to, but better than a mess.
Senior User
Joined: Aug 2018
Posts: 104
Likes: 0
From: Driftwood, TX
Thread Starter
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Cargo Master
Joined: Feb 2017
Posts: 2,428
Likes: 728
From: Wisconsin
I know the procedure, just not clear as to why I should have less than a quarter of a tank. In other words if I went to the dealer for this with a full tank, they would send me away and tell me to come back after 3/4 of the tank is consumed?
Postmaster
Joined: Jan 2005
Posts: 4,424
Likes: 12
From: BC Canada
If you went to the dealer and it kept pissing diesel they would take their time, drain a bunch of and eventually get the filter changed while it’s still draining probably. Just a precaution so you don’t fill 22 milk jugs full of diesel. I take mine in, it has a service package, and I take it in with less than a 1/4 tank. Force of habit from doing the 2005. Always got a soaked arm, shirt and more even with just a quarter tank. Some guys have said no problem, not necessary, some have done the 1/4tank. I am not taking my truck for service and leaving it with 1200 km of range and a full tank.
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Cargo Master
Joined: Feb 2017
Posts: 2,428
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From: Wisconsin
I get what your saying, but any significant amount of fuel wasted from the dealership should be replaced at their expense. But I still do not understand the 1/4 tank thing prior to doing the job.
I found this video, seems real easy.
I found this video, seems real easy.
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Thread Starter
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Cargo Master
Joined: Feb 2017
Posts: 2,428
Likes: 728
From: Wisconsin
I realize how easy it is, my concern is the 1/4 tank......why? (And if there is some kind of check valve that is not stopping the fuel flow, its a warranty issue to get fixed by the dealer vs waiting until I get down to a 1/4 tank.)
Posting Guru
Joined: Jun 2014
Posts: 959
Likes: 10
From: Medford, OR
ive change the filters on my 17 3 times. The only time I had an issue was when the tank was almost full. After about a gallon had drained, I shut the valve and waited until I had driven enough to lower the fuel to ~1/4 tank, then tried again, without incident.
I dont know why it works that way, but, when the answer is so simple, why fight success? (Especially since I’m out of warranty...
)
Laughing Gas
Joined: Jun 2018
Posts: 939
Likes: 8
From: DFW
Nothing wrong just a quirk of these trucks. Just follow the advice you have gotten and you will be fine.
Hotshot
Joined: Oct 2015
Posts: 19,698
Likes: 12,823
From: Wyoming
Is it safe to say that if you open the drain valve, drain off a quart of so of fuel and it stops, that when the fuel filter compartment is opened that there won't be a flood of additional fuel?
Hotshot
Joined: Apr 2013
Posts: 10,120
Likes: 652
From: NH
The 1/4 tank advice is to prevent a siphoning effect from draining the tank if your truck is missing or has a malfunctioning check valve.