Fuel Filter Change
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Cross-Country
Joined: Oct 2005
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Likes: 9
Fuel Filter Change
So I did my first fuel filter change yesterday in my 'new to me '18 F350 Platty Diesel. No real problems and went pretty easy...but....I opened the valve to drain the separator and let it drain while I was doing the other filter and stuff and the damed thing drained out 4 gallons of fuel. I wasn't prepared for that much and I used an older dirty container. For future reference, do most of you save the fuel and pour it back in or just pitch it? Oh and BTW I didn't even take a diesel bath.
Lead Driver
Joined: Nov 2005
Posts: 5,220
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From: Kaysville Utah
Earlier build '17 would drain if you were above 1/4 tank or some number. On those trucks you always wanted to be almost empty before changing the filter. My late build '17 didn't have that problem.. So Ford changed it sometime during the '17 model year. So that's my guess. What year is your truck?
Lead Driver
Joined: Jan 2002
Posts: 8,628
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From: Itinerant
Earlier build '17 would drain if you were above 1/4 tank or some number. On those trucks you always wanted to be almost empty before changing the filter. My late build '17 didn't have that problem.. So Ford changed it sometime during the '17 model year. So that's my guess. What year is your truck?
My early build '16' doesn't do this a quart or so that's it but then maybe it was below a 1/4 tank and I got lucky.
Tuned
Joined: Mar 2018
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Cross-Country
Joined: Oct 2005
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Hmmmm, that is weird. Yes it is an '18. I had just filled the truck up with fuel the evening before. I used an old 16 quart waste oil container and it was plum full when it stopped. Maybe it was somehow siphoning it out of the tank. Next time I will wait until the truck is about 1/4 trank before I do it.
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Cross-Country
Joined: Oct 2005
Posts: 84
Likes: 9
Yes I did. I pulled the filter under the hood and changed it while the other was draining.
Tuned
Joined: Nov 2016
Posts: 308
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Hmmmm, that is weird. Yes it is an '18. I had just filled the truck up with fuel the evening before. I used an old 16 quart waste oil container and it was plum full when it stopped. Maybe it was somehow siphoning it out of the tank. Next time I will wait until the truck is about 1/4 trank before I do it.
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