I have yet to get under the coach and follow the vent hose. It would seem to me that improper venting is the problem.
, how far from the front did you find the restriction?
It is a half hour process to fill our coach if it is on the slightest slope to the front. If we are sloping to the rear we can usually fill fast. I've have even put the jacks down in front and dumped the air out of the bags. Many times I fill
partially so not to hold others up.
As far as the truck islands, we have never had any negative comments, even some curious truckers. I run in give them my 5% fuel discount credit card, (comes in real handy now) fill up, have Patty pull ahead
while I settle up inside so we aren't blocking the pump. The times I've used the high flow truck island pumps we have had better luck filling.
We choose to fill at Flying J's if we can and use their $0.01 discount card. They also give you the cash price even if you are using a bank card. I check out the lines and choose which island I want to fill up. Some of the Flying J's RV islands are really congested with all the car islands ect..and make it tough to get out of the lot.
My Father in-law has 1 million + miles on his '99 Peterbuilt using Flying J and has never replaced his fuel injectors. That's why it's our choice for fuel.