Lessons learned with fuel filter change on 6.7

[gmbpilot757]

Not sure if anyone has had the same experience but thought I’d offer up my experience today. This isn’t my first rodeo changing the FF on my ‘24. I remember the first time I changed the FF @ 10k I had read posts saying to do it with minimal fuel in the tank. So I did. Changes at 10k and 20k had no issues. Decided to change them today after clicking over 30k. Sitting at about 3/4 of a tank and figured it couldn’t be that different. WRONG. I drained 2 gal out over 20 min or more and decided “that’s got to be good enough” even with fuel still draining out and when I went to loosen the 8mm housing bolts fuel dripped out around the bolts. So, I drained more for another 10 minutes, went to take the filter housing off and was greeted with a deluge of diesel fuel. It was all I could do to get those bolts tightened up as quick as I could to lessen the bath o’ kerosene I was taking.

Lesson learned. NEVER again will I attempt a filter swap with more than a 1/4 tank.

Wife didn’t even think I smelled sexy

 

[5150]

What about putting a latex glove or cellophane over the fuel fill next time so it can't siphon?

 

[HeavyAssault]

Did you disconnect the upper filter connections first??

 

[Explorerinil]

Did you disconnect the upper filter connections first??

I do the upper first, never get that much fuel out the water separator.

 

[gmbpilot757]

Did you disconnect the upper filter connections first??

Nope. Never have before and never had the issue.

 

[Toxophilite]

This is 100% a siphon effect - Here is a video that PTT did about this a few years ago: