I've got a 2014 Chevy Express AWD and I'm putting in a Webasto Air Top heater. The one thing I'd like to have sorted out before I start pulling stuff apart is the best way to tap into the fuel tank. I've found limited information (one thread here) on exactly what method to get into the tank with. In fact with the number of people who have these heaters in Chevy vans, I'm sort of surprised at how difficult it has been to find information on the install. Most people focus on detailing everything besides getting into the tank.
Unfortunately unlike some (many/most?) Sprinters, Promasters, and Transits there is no auxiliary port on the fuel pump for my van. I have a friend who's got an Express 3500 and that fuel pump does have an aux port. I thought maybe I could buy that pump and install on my van but the electrical connections are different along with who knows what else for the specs of the pump. The heater's install instructions (p53-54) indicate that I could use a 'T' and go into the return line. However, looking at pictures of the fuel pump I'm skeptical that the return line goes much lower than a couple inches into the tank. Thus this option, if it worked at all wouldn't be useful.
The other option the instructions indicate for a plastic tank like mine is to use a "Webasto tank extracting device" but I haven't found any information on these. My kit has the metal tank one, but I'm assuming if the Germans don't recommend it for a plastic tank then there's a good reason for it. So how the hell do I get the parts I need and get into the tank or fuel pump?
I guess another option would be an auxiliary tank, but I'm not inclined on that option as it adds more complications (and cost).
Unfortunately unlike some (many/most?) Sprinters, Promasters, and Transits there is no auxiliary port on the fuel pump for my van. I have a friend who's got an Express 3500 and that fuel pump does have an aux port. I thought maybe I could buy that pump and install on my van but the electrical connections are different along with who knows what else for the specs of the pump. The heater's install instructions (p53-54) indicate that I could use a 'T' and go into the return line. However, looking at pictures of the fuel pump I'm skeptical that the return line goes much lower than a couple inches into the tank. Thus this option, if it worked at all wouldn't be useful.
The other option the instructions indicate for a plastic tank like mine is to use a "Webasto tank extracting device" but I haven't found any information on these. My kit has the metal tank one, but I'm assuming if the Germans don't recommend it for a plastic tank then there's a good reason for it. So how the hell do I get the parts I need and get into the tank or fuel pump?
I guess another option would be an auxiliary tank, but I'm not inclined on that option as it adds more complications (and cost).
