Quote:
Originally Posted by aquaman0001
My 87 300SDL has a lot of air in the inline filter(only half full). So I I put a new inline and spin on filter. Swapped supply and return fuel line in case of clogged tank screen. Still only half full and no power. I do not see any fuel leeks or weeping lines. I am running a 50/50 blend of diesel/bio. Is there a way to test the lift pump? Any suggestions would be greatly appreciated.
Thank you,
A
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I'd stick your supply and return lines in a small container of fuel and try to start it (and if the air bubble goes away).....that way you can determine/isolate where your problem is. Small fuel leaks aren't always obvious....you could have one in the hard lines and not notice it.