Hi, I'm Wade from Thoroughbred Diesel and today we're going to teach you how to change
the fuel filter on a 2.8 Duramax.
On a 2019 Duramax, we've only got 10,000 miles on this truck.
Now, the service interval for fuel filters on the 2.8 Duramax is supposed to be 37,500
miles.
Fuel filters are cheap.
Fuel system components are expensive.
We're going to go ahead and change the fuel filters on this truck today.
With 10,000 miles on this truck, it's already shown about 60% of fuel filter life still
available, so it's right on pace to be out of fuel filter life at 37,000 miles.
However, you will need to pay attention to the fuel filter life in the DIC on these vehicles
because if you get a bad load of fuel, it's going to load these filters.
That's going to be present in the DIC.
So your fuel filter percentage, you may just change fuel filter again, then get a bad load
of fuel and it may shoot to 0%.
Don't always think that it may be a bad sensor or something for you not to look at.
Remember you could've gotten a bad load of fuel.
So now that being said, the product that we're going to be putting on this truck is the genuine
ACDelco filters.
This is at the time of this filming.
Partner Brown, this is a TP1007 ACDelco.
The long string part number for that is a 52100212.
It's at the bottom right below the TP number on that.
Just for giggles, we ordered another company's filters, local parts house.
I'm not going to beat up on anybody.
I don't know who makes this filter.
It is Chinese made.
I'll cover up the thing and you can see right here.
You can see made in China.
So taking a look at these filters, the first thing that we noticed when we got him in was
the ACDelco filter was much, much denser than the Chinese filter from the part's house,
but it's denser, much heavier.
That leads me to believe without doing a scientific analysis of this filter, cutting it open,
looking at how many layers, there's going to be more layers to this, more filtering
media inside of this filter.
This one being a much lighter filter.
We also notice that the weaving on the outside is very loose.
For lack of a better word, the outside shell of this almost looks fuzzy.
This has got a quilted look to it on the outside of it and I think that lends itself to the
material inside of the filter being a denser, a better quality material.
So there are two fuel filters on the 2.8 Duramax LWN.
They are both in the same assembly.
They're side by side.
It takes a 27 metric to be able to service these.
So if you don't have a 27 metric, go ahead and get that out.
I think inch and a quarter will work too.
27 is exactly what it is.
So with our tools and everything, we're ready to go.
To go ahead and start with our fuel filter change.
What you want to remember on this, it tells you in the manual you're going to want to
make sure the truck's been shut off for 30 seconds so that the fuel pump is not energized.
You can take it one step further and go ahead and pull the negative cable off the battery,
if you worry about somebody jumping in there and energizing it on you while you're changing
your fuel filter.
But we're going to go ahead and get it in there and get the fuel filters changed.
All right, underneath the truck and just forward of your fuel tank is your fuel filter canister.
Two fuel filters in here.
The 27 metric and like we were talking about the filter heads on here.
But one thing I want to talk to you about on the canister is the water and fuel drain.
The water and fuel drain on these trucks is this orange tab that is between the two filters.
What you can do with this is you need to use your water and fuel drain pretty consistently.
I feel like if you go a hundred thousand miles and never let the water off of these filters
are never touched and drained, that little drain is going to become very brittle and
it's probably going to break the first time you do it.
So the more interaction you have with it, the better off that you are.
Now, we've drained this canister, we've drained one side of this canister so it doesn't just
flood us, but this is a really, really nice way to drain this canister is to just use
your water and fuel plug.
The water and fuel plug won't come out.
You can just drop it straight down like this.
Well we've got a little fuel left in here, but you can drop it down like that right there
and let a little bit of fuel off on the canister.
Let it drain out.
You can let it drain out just like that.
So that way you don't get absolutely flooded with fuel when you take the filters out.
So we're going to let that do its thing.
And with the magic of cameras we're going to cut and we'll come back once it's drained
out.
Actually, you know what, it's pretty close there at it.
Drain on out.
We're not going to use the magic of cameras today.
So yeah, that's another just a nice way to use it there.
A nice way to use that water in fuel drain.
There's quite a bit of fuel in this canister.
It comes out pretty well.
I don't know that they always tell you how much fuel you're going to be wearing in jobs
like this.
But yeah.
So have yourself a canister to catch your fuel underneath the truck.
Make sure the truck's been off for 30 seconds so that it's unprimed and we'll go ahead and
drop our fuel filters out.
And these things there's not a lot of thread on them.
When you loosen it up and you'll think, "Man, I've turned on this for days and it's not
coming down."
Probably just need to pull straight down on it and the filter comes out just like that
and then our filter closest to the cab.
So 10,000 miles on this truck and you can see that we've been doing pretty good on our
fuel quality.
Not a lot there, but good time to change him anyway.
First thing that we're going to do is we're going to go ahead and put our water and fuel,
plug back up and tighten it down.
It only goes so far so you don't have to break it off in there.
All right.
The fuel filters are both the same, so it doesn't matter which one you put where.
I used just a little bit of the old fuel around here to lubricate my old ring.
And the torque on this is really light.
It's 20.5Nm, so not much.
We'll go ahead and tighten
that up.
All right.
So that's all there is to change in the fuel filter.
Now we're going to get the truck down and we're going to show you how to properly prime
the systems and then we're going to show you how to clear the fuel filter percentage in
the DIC.
All right, we're going to talk to you about the proper procedure to prime the fuel filter
on these trucks.
Our manual tells us to prime the system, you will do two key cycles and both of those key
cycles will contain a 32nd run time, ten 32nd run time of the lift pump that will fill up
our canister.
After the second time we were able to start it.
I've already done one of those now to save us some time, but what I'm going to do is
I'm going to turn the key to the on position and when I say on I'm saying on not the run
position and will you turn that key for me while the steering wheel is locked.
Sorry folks.
All right, so I'm going to be quiet here.
You can hear the lift pump running.
Run about a 20 to 30 seconds cycle and it will shut off.
Once it shuts off, we can start the truck.
That'll be my second time.
When you turn your key off after your first lift pump cycle, you want to make sure the
cm resets in the truck.
So let the truck sit for a minute before you go for your second cycle.
So this is our second cycle.
So we're going to go ahead and start the truck.
If it doesn't start, don't freak out.
You're still okay.
You just want to shut the truck off, turn it to the off position, get underneath the
truck and look for leaks.
Now, I don't know how it got back to there.
So to bring the DIC up, go to the information side, so on the right hand side of the steering
wheel, push to the right.
That'll bring up that top row there that's got the home and everything on it.
I'm going to go ahead and zoom in.
Now, we're already on fuel filter life, but to get fuel filter life, you just press the
up and down.
To reset our fuel filter life, we will go right here and we will hit the check button,
which is the button in the middle.
And then it'll ask us, are we sure we want to reset the fuel filter life?
Yes, we do.
Fuel filter life should be 100% but it didn't do it.
The truck apparently cannot be on when you do that, the truck has to be off.
So as soon as we turned the key off and we turned it back on, it went to fuel filter
life 100%.
So if you try to do that while the trucks run, not going to work, you've got to have
truck off and the key on, and then you can reset the fuel filter life.
So learned something today while you guys were learning as well.
I'm Wade from Thoroughbred Diesel.
Now you know how to change the fuel filter in a 2.8 Duramax.
If you have any questions about this video or any of our other videos, please give us
a call and like and subscribe to our channel.
And as always, thanks for watching.