Trick to fill DEF tank from drivers side?

[Rustymayes]

Today I filled up my DEF tank for the first time using a pump at a truck stop. I have been buying the boxes of DEF at the parts house but its such a PITA. I used the driver's side fuel fill for the fuel but the DEF port quickly backed up and would not take any volume of DEF. I had to maneuver the coach to the other side of the pump island to fill the tank directly. Has anyone had this issue and had any luck correcting it?
Thanks

 

[Neal]

Maybe borescope to check for obstructions?

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[Rustymayes]

I'll try that, I remember the fellow that did our orientation say that filling from that side was not optimal and looking at the level the filler vs the top of the tank I see where it is a flawed design.

 

[SteveMA]

What model coach do you have? I always fill my Mountain Aire from the driver side — probably 99% of the time because of the way truckstops are and haven’t really had that problem. Sounds like there could be a blockage as Neil suggested. Sometimes I have to get the DEF nozzle in just right because some of them are really sensitive, but having had a previous coach with the deaf fill only on the passenger side, I can assure you it’s a nightmare I got yelled at more than a few times at truckstops for going in the wrong way, or using the DEF from the next lane over

 

[FLSteve]

Today I filled up my DEF tank for the first time using a pump at a truck stop. I have been buying the boxes of DEF at the parts house but its such a PITA. I used the driver's side fuel fill for the fuel but the DEF port quickly backed up and would not take any volume of DEF. I had to maneuver the coach to the other side of the pump island to fill the tank directly. Has anyone had this issue and had any luck correcting it?
Thanks

@Rustymayes ... same experience for me. I tried it once and have not used it since.

FLSteve

 

[Ventana]

I use the, "Fill an empty jug and pour it in at the campground method". I like the translucent containers because it is easy to monitor filling it up. At the campground I used a float meter to check the DEF before adding it. This method takes about 1 beer to administer. Your operating instructions may vary.

 

[Rich W.]

I use the, "Fill an empty jug and pour it in at the campground method". I like the translucent containers because it is easy to monitor filling it up. At the campground I used a float meter to check the DEF before adding it. This method takes about 1 beer to administer. Your operating instructions may vary.

I have the same results as long as its not the first one…

 

[JRS]

Wow.... Outside of filling with 2.5 gal jugs last summer while in Canada, it's always filled via the drivers side w/o any issues.
Maybe scope it per Neal's suggestion?

 

[Jim]

Today I filled up my DEF tank for the first time using a pump at a truck stop. I have been buying the boxes of DEF at the parts house but its such a PITA. I used the driver's side fuel fill for the fuel but the DEF port quickly backed up and would not take any volume of DEF. I had to maneuver the coach to the other side of the pump island to fill the tank directly. Has anyone had this issue and had any luck correcting it?
Thanks

I have the same problem. Took about 10 gallons and that was it. Have to fill it from the passenger side with boxes.

 

[Joe Hogan]

Almost sounds like the filler tube is drooping causing fluid to pool in a low spot. the pooling will allow the fluid to back up. Once fluid hits the filler Gun device it will stopp the flow.
Just a wild guess on my part.