Okay...started my install on an airdog 150 last night on my 2004 Ram 2500. I dropped the tank and what a MESS! I took a bath in diesel fuel. When I pulled out the basket fuel spilt all over. I wish I had removed the bed but I didn't want to wait for help. I'll install the draw tube tonight and reinstall the tank. Here's my question. Instruction say to go from airdog to the pump on the hight pressure side and bypass the OEM fuel filter. If I bypass the fuel filter I also lose the fuel heater. Should I tap right into the factory filter in order to keep the heater? I looked it up in the manual and it says the heater keeps the fuel from waxing below 45F. I'm in Southern MD and it get below 45F here in the winter. What do you guys think?

 

Got the airdog installed. The biggest problem was with the new draw tube. If your going to install a draw tube the best thing to do is to remove the bed. Its not to bad pulling the tank but putting it back in is a nighmare. Truck runs great and the airdog is completely quiet. Do to the install issues I left the factory lines installed. I removed the power plug from the OEM lift pump and caped the banjo bolt. I'll leave it for now but I'm going to have to pull the bed because now my fuel guage doesn't work.

 

Being in Alberta, Canada (where it gets to -40 in the winter) I ran my FASS through the factory fuel filter assembly to keep the heater. It shouldn't be needed if the fuel stations are properly mixing the winter blend, but better safe then sorry.

I'm also going to move this to the appropriate section to get more views.

 

The factory heater only keeps the factory filter from waxing...what does it do for the AirDog filters that are way upstream? The factory fuel heater does absolutely nothing for preventing aftermarket filters from waxing. So running the factory heater with an Airdog or FASS is pretty much a waste of time.

I'm not going to say I run a lot of cold temps, but I've put a load of miles on an unheated FASS, and now an Airdog, with temps down to -25*F (ambient) and never had a (cold weather) fuel issue. But I also treat my fuel if its going to be cold or if I travel from the southern stated into the north during winter months.

 

I have a Airdog and I know others that have them here in Alaska were it gets colder than -40 and we don't have any issues.

 

after i installed my air dog i drove a few hundred miles and my fuel gauge only works from full to just above half then it stops. i pulled the module out and plugged it in and messed with the float and watched the gauge work from empty to full so i reinstalled it now it doesnt work again. wonder if it was something i did?

 

Did you clock the sending unit so the float aligns with the tank? If not, it may hit the side of the tank which would prevent it from travelling its full range.

 

I am in agreement with Steve here....
I have MANY miles on both FASS and Airdog's with no fuel heater assemblies working and never have had any issues.I make a trip into Northern Quebec every Winter to visit a good friend and ride sleds on their farm where temps outside go into the -35f area and have not had a issue with fuel gelling at all with no heater.

Fuel gauge issues could either be something as simple as a plug issue or a issue with the float inside so if it were mine I would start easy and then move on until you fix it.On my 05 truck we draw the fuel from the tank bottom from a sump and use the factory return line as it was from Dodge and placed the AD return into where the factory lift pump used to be and not into the fuel fill tube.

 

FASS does offer fuel heating kits that install directly into your Heavy Duty, Titanium and the Platinum fuel systems.

 

yeah i marked it with a paint stick before i pulled it out. i want to say that it could only fit in there one way tho, but i could be wrong