Fuel filter change issue

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Jul 12, 2023 | 10:43 AM

#16

redford

Thread Starter

FTE Leadership Emeritus

Joined: Sep 2000

Posts: 23,174

Likes: 1,679

From: Stephensville WI

Quote:

Originally Posted by acdii

Did my 19 over the weekend, only got what the volume of that housing holds. What I didn't do and maybe the issue here is the top filter. I did that one first, then did the lower one. I didn't do them at the same time, so maybe by removing the top filter while the drain was opened, caused a back flow problem.

That could also be the issue, but the amount of fuel that I got out tells me it probably came from the tank side of the water separator, not the upper filter side.

Jul 12, 2023 | 10:52 AM

#17

4wd6.7L

Lead Driver

Joined: Dec 2020

Posts: 8,640

Likes: 2,435

Quote:

Originally Posted by acdii

On my 2019, I did my top filter while the lower was draining and didn't have any issue with siphoning or back flow.

Jul 12, 2023 | 02:23 PM

#18

lincster

5th Wheeling

Joined: Aug 2004

Posts: 44

Likes: 15

From: Mesa

Quote:

Originally Posted by senix

when I do my lower one, I open the yellow valve and then start loosening the bolts. Once you get the bolts loosened enough to open it up it will break the suction and quit draining.

I do the lower then the upper.

This.
Loosen bolts and stops siphoning.