In Tank Fuel Pump 760/780 PRV

Discussion in 'Volvo 780' started by smyrna45, Aug 26, 2004.

  1. smyrna45

    smyrna45 Guest

    I have narrowed some of my 780 v6 hard start problem down to the
    in-tank fuel pump. It doesn't seem to be working at all. When I
    removed the cover plate in the trunk I see what looks like a large
    round top that looks like it is screwed in. It doesn't have any nuts
    holding it on like the one in the Haynes manual. Does it just screw
    smyrna45, Aug 26, 2004
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  2. smyrna45

    Roy Bolton Guest

    If it's anything like the 740, yes it does screw off, it's very tight. Mark
    the position of the sender assembly against the tank before you remove it so
    you can get the sender back in the same position on reassembly. Beware of
    dropping any sealing rings/gaskets into the tank as you remove it. You will
    see the fuel pump attached to the sender unit as you withdraw the assembly.
    I did this job about 6 months ago, the only problems i had were with the
    clips that hold the pipes in. I ended up sawing them off, carefully! and
    replacing them on reassembly. The pump can be tested once removed from the
    tank. Needless to say, watch out for sparks and smokers!!!!!!
    Roy Bolton, Aug 27, 2004
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  3. smyrna45

    Mike F Guest

    You need to spin that big plastic ring around the outside of the
    sender. There's a special tool, of course, but you can do it with a
    couple of prybars, prying in opposite directions 180 degrees from each

    Mike F.
    Thornhill (near Toronto), Ont.

    NOTE: new address!!
    Replace tt with t (twice!) and remove parentheses to email me directly.
    (But I check the newsgroup more often than this email address.)
    Mike F, Aug 27, 2004
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