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Fuel pump outside of gas tank 700 1990

posted by  Dave1313 on  Sun Jul 19 00:14 CST 2015
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last visit: Sat Jul 26 16:19 CST 2014
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It's a 1990 780 baratone coupe turbo 4 cyl volvo
I need to know if you have to release any pressure on this fuel pump and where and how to do it before it's replaced if anyone could help me please.








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    Unrelated yet http://volvobertone.proboards.com/ 700 1990

    uid 46171's pic
    posted by  kittysgreyvolvo on  Mon Jul 20 13:07 CST 2015
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    last visit: Sat Oct 18 15:23 CST 2014
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    http://volvobertone.proboards.com/

    Found the bookmark. Hope that helps you.
    --
    The Volvo 164: The Mightiest of All Volvo Automobiles in Perpetuity








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      Unrelated yet http://volvobertone.proboards.com/ 700 1990

      posted by  Dave1313 on  Mon Jul 20 21:37 CST 2015
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      last visit: Sat Jul 26 16:19 CST 2014
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      Imm new to this how do I view the bookmark on here and paste r what can I do








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        Unrelated yet http://volvobertone.proboards.com/ 700 1990

        posted by  oldyellr on  Tue Jul 21 14:11 CST 2015
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        He means he found his bookmark and posted the link. You have to highlight the link and open it in another tab or window. Nobody can post live links here unless they know how to go through some fancy HTML stuff.
        --
        1992 745, >500k km








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    Fuel pump outside of gas tank 700 1990

    posted by  Onkel Udo II on  Sun Jul 19 14:52 CST 2015
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    If you have waited a few hours since the last start attempt, the pressure will be minimal or none.

    That said, as these pumps tend to last 250K + if the car does not site of extended periods or sun with the in-tank pump non-functional for long periods of time, what makes you believe it needs replaced? Bad fuses and fuel pump relays cause a lot of pumps to be replaced.








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      Fuel pump outside of gas tank 700 1990

      posted by  Dave1313 on  Mon Jul 20 06:00 CST 2015
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      Because when they put another relay fuel pump fuse in it just burned out and a mechanic said the pump was bad mr know it all








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        Fuel pump outside of gas tank 700 1990

        posted by  Onkel Udo II on  Mon Jul 20 09:22 CST 2015
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        I hope that was intended as tongue in cheek because you came to this board for our collective knowledge. Snarkyness is not a common trait here as we are all trying to meet a common goal of keeping our cars running.

        A new fuse "burning up" is very unlikely to be the pump itself. The pumps do not draw enough amps even when failing to blow fuse....most of the time. It is normally a and issue between that fuse and the pump.

        When an external main pump fails it tends stop spinning which draws mostly no amps. The wiring shorting to ground for example would cause a fuse to immediately blow. A terribly high resistance between the ground and the pump would cause the fuse to blow but usually much more slowly.








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          Fuel pump outside of gas tank 700 1990

          posted by  Dave1313 on  Mon Jul 20 21:31 CST 2015
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          Sorry folks not trying to be mean r a smartass to anyone I myself have had problems with my own volvo but realize that all of them r not the same and my friends car is the one with the fuel pump problem. I love this forum!!








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          Fuel pump outside of gas tank 700 1990

          posted by  jerryc on  Mon Jul 20 11:46 CST 2015
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          You are nicer than I am.

          "a mechanic said..." Alrighty then, let's all go back to kindergarten and play in the sand.

          Dear OP; Onk is one of the most knowledgeable people on here, about these cars. The cars have some unique design features that are not quite the same as other brands, and they have some quirks that many here have spent a lot of time learning about. Also, your car is one of approx 8500 ever made, world wide,in its entire production life of 5 years. It'd be nice to see a considerate attitude, as we share thoughts and experience.








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            Fuel pump outside of gas tank 700 1990

            posted by  Onkel Udo II on  Mon Jul 20 14:15 CST 2015
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            I do now, and I always will give everyone the benefit of the doubt on something like this.

            Great example is the infamous "the fuses are fine" comment. I will always describe a specific procedure that is the only way I can accept that specific statement and many a personal (direct or indirect) issue with the 240 ceramic and brass fuses and the Volvo fuse clips that hold them. Many 740 owners have the same experiences with relay sockets and grounding bars.

            FYI, much of my knowledge is second-hand from folks like Art B, Don Foster, and Pagenda. I have just been here a long time and absorb knowledge like a sponge when I am interested.








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              Fine fuses and Rocky the Flying Squirrel 700 1990

              uid 27's pic
              posted by  Art Benstein on  Tue Jul 21 15:37 CST 2015
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              last visit: Fri Oct 17 20:10 CST 2014
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              "Great example is the infamous 'the fuses are fine' comment."

              Had to laugh. I can't think of an assertion used by posters on the 240 forum, which is more often wrong than this one. I even developed a graphic for it.



              Then, to set apart from one another those 240 fuses that aren't fine:



              But the blade fuses of the type used in the 7/9 cars have equivalent failures which can cause grizzled old electrical troubleshooters to say "aw shucks" (or sumpin like dat) when they finally pin down the intermittent -- like metal fatigue in the element right where you can't see it easily. Fact is, it is so hard to see, the aforementioned grizzled one sent me the example and I haven't yet figured out how to photograph it.

              Anyhow, the idea one can troubleshoot electricity by visually inspecting parts-pieces gets people from A to B often enough there's sudden consternation when the method inevitably fails them.

              --
              Art Benstein near Baltimore

              How to Ask Smart Questions








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            Fuel pump outside of gas tank 700 1990

            posted by  oldduke on  Mon Jul 20 12:34 CST 2015
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            but jerry what about if you have sensitive feelings which are easily hurt by a malodorous critique? phat regards oldduke








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        Fuel pump outside of gas tank 700 1990

        posted by  spasske on  Mon Jul 20 07:58 CST 2015
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        last visit: Thu Oct 23 10:11 CST 2014
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        "burned out"? What burned out?

        Check for voltage at the connector below the vehicle to make sure it is getting 12 VDC. You can also check current draw at the fuses. See the FAQ.

        When the pump went out on my 1990 wagon, it would die and coast like lack of fuel and pick back up until it got worse.

        You may need to pick up the cage and all the bolts that attaches it to the car from the dealer. Mine was pretty rusted. It was a reasonable price.
        --
        Paul NW Indiana '89 744 Turbo 180K/ '90 745 turbo 145K








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    Fuel pump outside of gas tank 700 1990

    posted by  Chris Mullet on  Sun Jul 19 14:05 CST 2015
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    last visit: Fri Oct 24 09:08 CST 2014
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    If you have a schrader valve on the the fuel injector rail, you can release any residual pressure that is remaining in the line. Hold a rag over the nozzle as you poke the valve stem. Or you can usually just crack the fitting loose at the pump/filter and catch any fuel that squirts out with good-size rag. Have good fitting wrenches for the fittings at the pump as they always seem to be tighter than all get-out.







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