genscripter
Full Access Member
If you can, I would just buy a simple WIX combo filter like this: https://www.amazon.com/WIX-Filters-33417-Heavy-Separator/dp/B000CSIODU
Fill it with fuel and install it on your top-of-engine diesel filter head.
Where is this "other fuel fitler/water separator?" Is it on the frame rail? If yes, then buy a few feet of 3/8" fuel hose and bypass your "other" fuel filter. Just use the lift pump and top-of-engine filter setup. The new WIX filter will work fine. And it's simple design will reduce the change for air intrusion. Skipping the other filter eliminates anything the PO might have done to cause air intrusion.
With this new setup, you should have a simple system: fuel tank to FSV to lift pump to filter to IP.
Also, make sure you have full fuel tanks, just in case your fuel pickup broke in the tank. If you fuel tank pickup broke, you can only get fuel from 1/4 tank to full tank. Under 1/4 tank won't reach the end of the straw.
I wrote a big spiel about how to fix that in a van here and here:
http://www.nickpisca.com/diesel/fue...di-van-center-diesel-tank-sender-replacement/
http://www.nickpisca.com/diesel/fue...rd-van-fuel-tank-sender-replacement-tutorial/
Fill it with fuel and install it on your top-of-engine diesel filter head.
Where is this "other fuel fitler/water separator?" Is it on the frame rail? If yes, then buy a few feet of 3/8" fuel hose and bypass your "other" fuel filter. Just use the lift pump and top-of-engine filter setup. The new WIX filter will work fine. And it's simple design will reduce the change for air intrusion. Skipping the other filter eliminates anything the PO might have done to cause air intrusion.
With this new setup, you should have a simple system: fuel tank to FSV to lift pump to filter to IP.
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Also, make sure you have full fuel tanks, just in case your fuel pickup broke in the tank. If you fuel tank pickup broke, you can only get fuel from 1/4 tank to full tank. Under 1/4 tank won't reach the end of the straw.
I wrote a big spiel about how to fix that in a van here and here:
http://www.nickpisca.com/diesel/fue...di-van-center-diesel-tank-sender-replacement/
http://www.nickpisca.com/diesel/fue...rd-van-fuel-tank-sender-replacement-tutorial/