First service time is here! Oil change is coming in a couple weeks, but my fuel filters hit 0% so I went ahead and took care of those this morning before adventuring out to the lake. For those that have 2019+ trucks, filter service is a little different than previous generations, and despite my best efforts, I still got diesel everywhere. (BTW, I actually took pictures this time!)
Fun Fact: Just like on pre-2019 trucks, you have to drain the assembly, however, unlike the old spin off filters that actually drained completely...these new canister filters will stop draining out of the port but still have a ton of fuel inside of them
So let's get started.
Tools needed: 1/2" drive socket wrench, 28mm socket, 10"+ extension, swivel socket, gloves, towels, something to catch diesel fuel in.
Parts needed: 68157291AA & 68436631AA
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Under the bed of the truck, next to the gas tank, and in between the driveshaft & exhaust is where you will find the fuel/water separator. Similar location to previous trucks. Only difference is that the petcock is on the side now vs the bottom. Use a hose, drain pan, or I used a water bottle to drain the fuel into. If the petcock is too tight to turn by hand, use can use a 8mm socket on it.
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After the fuel stops draining out of the petcock valve, use your 28mm to loosen the canister. This is where I ended up with a mess of fuel, when I loosed the cap the fuel that didn't drain out the valve ended up running out over the lid :| keep your drain pan handy!
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Once you've made your mess & removed the cap, the filter may come with the cap or it may be snapped into the housing..mine was attached to the cap (either way is fine). If the filter is on the cap, just keep note that there is still fuel inside of it - drain accordingly. If the filter is in the housing, you shouldn't have any more issues with fuel leaking everywhere. Here you can see the disassembled cap with filter attached.
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Filter goes in here.
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I opted to install the filter back into the lid but you can snap it into the housing if you choose to do so.
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Moving on to the under hood filter. This is where things get a little more fun. Lid uses the same 28mm socket as the previous filter, but you may have to get a little creative with this one as the lid is on TIGHT.
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First start off with purging the fuel again. Only this time it's a little more complex especially if you're by yourself. So this yellow knob opens the drain port, which drains the fuel out of the rubber hose underneath.
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Top center of this photo is the drain hose for the filter housing. It's a clear hose, you can see it above the small black hose. I wedged a water bottle up into that spot and reached around the front part of the engine to open the valve.
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Once you no longer get fuel out of the housing, prepare to loosen the lid (keep in mind, more fuel will drain out once the lid is unscrewed). Your extension and swivel socket will be helpful here.
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How you get to the lid is up to you. You can drop the extension down by the cowl, or just grab it through the big opening. I had to skip the extension at first as the lid was too tight and the angle of the whole get up wasn't working. Bust it loose and spin it off, the rest is straight forward.
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When installing the new front filter, make sure it clicks TWICE before you put the lid on. Also, don't forget to change your o-rings. Finally, always make sure you prime the system before starting the truck, cycling your key to run 2-3 times will do the trick. After that, just reset your filter life indicator, crack a cold one, and move on to something more enjoyable than doing fuel filters on your Ram
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