FASS Fuel Systems "How It Works" 

We appreciate that, thank you for all the support!

Viper1 what's wrong with Exxon Mobil fill stations?

Where do you get your diesel fuel from?

Heck yeah, we appreciate that!

Thanks for choosing FASS! Definitely let us know what you think of your system, and give us a shout if any questions come up.

yea majority of people run a sump kit its better for your truck anyway

Thank you!

It's pretty eye-opening to see in person!

Awesome question, and for the best help with getting this set up our tech line will be able to get all the part numbers and info for you. The number for them is 1-866-769-3747.

Thank you!

Hey John, a FASS system won't affect your fuel additives.

Thank you for reaching out, and we appreciate you asking. With our system, you won't have to remove the factory filter housing. If it's something you choose to do we have kits for deleting the factory filter housing. We'd be happy to help answer any other questions that come up as well. Our number is 636-433-5410. Thank you.

Hey there, thank you for reaching out and we will be happy to help! A 250gph Industrial Series system would be a great fit for your truck, and we have a link here for you to check out as well. fassride.com/shop/product/shop-category/universal-industrial-series/fass-ind250g-industrial-series-diesel-fuel-system-class-8-semi-250gph-universal/ If you have any other questions or need anything at all you are more than welcome to reach out to us at 636-433-5410. Thank you!

Yes

Sure thing! You can check out our kits for the 7.3 Powerstroke here: fassride.com/shop/product-finder/

Hey Anthony, thanks for reaching out. We most definitely do-we'll attach a link to our dealer locator tool below. If you're looking for a specific recommendation, Linco Diesel Performance in Troy, Missouri is very well versed in the L5P platform, and would be happy to get you set up! Here is the link: fassride.com/customer-support/locate-a-dealer/?search_type=zip&dealer_type=1&country=US&zip-code=63026

Thank you for your information and answering so quickly.

You are very welcome! If anything else comes up you are more than welcome to reach out to us anytime!

Hey there, thank you for reaching out! We'll be happy to help with a selection for your truck and have a weblink here for you. fassride.com/shop/product/shop-category/universal-industrial-series/fass-ind250g-industrial-series-diesel-fuel-system-class-8-semi-250gph-universal/ If there's anything else you need please feel free to reach out to us!

It provides better flow and can adjust the pressure

Great question, and while we don't offer a kit for that specific setup typically the 5.9 Ram kit will work for those trucks with a little modification. We have the weblink attached here for you as well. fassride.com/shop/product/shop-category/2004-5-2007-5-9l-24v-cummins/fass-tsd08100g-titanium-signature-series-diesel-fuel-system-100gph-dodge-cummins-5-9l-1998-5-2004/ If you have any questions or need anything you are more than welcome to reach out to us anytime! 636-433-5410 is our service team number.

Great question, and absolutely! The FASS system can help the reliability, and longevity of your diesel engine as well as those components. We have a page on the website that we'll link here as well called what is FASS. fassride.com/what-is-fass/ If you have any other questions or need anything at all you are more than welcome to reach out to us anytime!

Great question! Stepping-up to a higher flow option simply means more fuel will be returned to your tank. Your engine will still burn the exact amount of fuel required by the tuning parameters.

@@FASSFuelSystems thank you very much. May go ahead with the 165 incase I ever decide to upgrade injectors and/or turbo.

@@duramaxman8242 Sure thing! If any questions come up, give us a call at 636-433-5410, and our team will be happy to help.

It's got a limited lifetime warranty, email them and ask! I'm in Canada and will be putting this to the test for sure 😁

@@Driver0808657 the Racor P510MAM is a great alternative. Built for continuous industrial use.

Michele Latter buy an airdog

Figure it out?

A bass???? 🐟 🐠 🎣?

For sure! To get you the correct part numbers for everything if you don't mind give us a call at 1-866-769-3747. Our Service team will be happy to help you out!

change them every 3k-6k miles just like you would with stock filters. Better to spend a few bucks on filters than to buy engine parts or injectors.

Great question! The air is actually returned back to the fuel tank-and away from the injection system. If you happen to catch us at a truck show, race, or trade show, we'd be happy to show you a live demo.

It will improve the efficiency of your truck which should improve your fuel mileage. The amount of gain you'll see will be hard to determine based on conditions, loads on the truck, and etc. If you ever have any other questions your more than welcome to reach out to us at 1-866-769-3747.

You aren't going to be able to hear that over the engine 😂

Yes mine is very loud. I can hear it at all times but you get used to it

My truck has one can't hear it over the truck even at idle

Cant hear it after truck starts.

Ohh wow, we do apologize for this! If you have any further issues you are more than welcome to give the tech line a call! 636-433-5410. You all need anything let us know!

Hi Joe! If we understand your question correctly, you're asking about installing an oversized pump. With our systems, you can install a higher-flow pump than your engine needs, and the excess fuel will simply be returned to the tank. Since our pump and filters remove all the fuel contaminants, the excess fuel will be continually polished as it circulates through your fuel system.

That's awesome! Appreciate you and all your support!

Potty mouth

That's awesome!

Ajá, yeah right!

Ya i did too. 5 injectors went out with in 6 months. I think it clean the fuel to good. So some of the lubricant it taken away and burn the injectors up

@@jefflittle5119 yeah I've been adding additive to mine quite a bit trying to keep everything nice and lubed

Chill man, he's fine if you have hard time listening, turn on 1.25x speed

he’s probably not addicted to caffeine like you

Theodore probably just a engineer, I have the same problem

Why not? Enough air in diesel means it doesn't run, a little air means it doesn't run well. What's your procedure for purging if you don't fill you filter?

Mike Barnea prefilling a filter allows unfiltered fuel to go through the system.

@@justinfranklin204 fair point, but what do you do to get the air out of the system?

Mike Barnea depending on the engine, crack the fuel lines loose to bleed the air, otherwise common rail is self bleeding

Your forgetting the filter before the injector pump

Yes my pump fass titanium died under two years old truck still runs fine gonna pull pump and mail in for warranty repair my truck is a 2008 lmm duramax the motor runs way smoother and quieter with the pump working

I have a lift pump pressure guage on my cts thats how I knew my pump went bad

Theres a video of my failed pump on my page I sent it back to fass they fixed and returned only cost me 16 dollars shipping works great again