Volvo RWD 140-160 Forum

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164e no start 140-160

posted by  tedv on  Sat May 31 15:11 CST 2014
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last visit: Sat Oct 18 10:51 CST 2014
[RELATED]

So now my '72 164e is getting no signal to the fuel pump... The pump itself is OK, the fuse is good, the relays clicks when powered directly, so what's left? The "computer"? Should I make that assumption or can someone enlighten me as to another possibility?








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    164e no start 140-160

    posted by  tedv on  Wed Jun 4 14:32 CST 2014
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    last visit: Sat Oct 18 10:51 CST 2014
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    Problem found! The ground wire that attaches to the right rear tail light was off, and that same wire apparently provides the ground for the pump! Go figure...








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    164e no start 140-160

    posted by  kronikov on  Mon Jun 2 05:09 CST 2014
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    last visit: Thu Oct 23 15:37 CST 2014
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    Grounding? If your meter has a continuity function, determine whether the pump is grounded properly by connecting from the ground wire on the car to the chassis. If not, try to jumper the ground side of the pump to determine if the ground wire is at fault. Also, clean up the ground location to rule that out.








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    164e no start 140-160

    posted by  planetman on  Sat May 31 18:38 CST 2014
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    last visit: Fri Oct 24 09:29 CST 2014
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    Check the output of the fuel pump relay to make sure the wire going to the fuel pump is getting power.
    --
    Eric
    Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
    Torrance, CA 90502








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      164e no start 140-160

      posted by  tedv on  Sun Jun 1 11:35 CST 2014
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      last visit: Sat Oct 18 10:51 CST 2014
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      I think so... If it is the red one coming out of the relay, it is got 12v with the key On... But then there is no power getting to the fuel pump (at the pump). Is that the wire that powers the pump?








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        164e no start 140-160

        posted by  planetman on  Sun Jun 1 12:10 CST 2014
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        last visit: Fri Oct 24 09:29 CST 2014
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        The yellow wire goes to the fuel pump.
        --
        Eric

        Hi Performance Automotive Service (formerly OVO or Old Volvos Only)

        Torrance, CA 90502








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          164e no start 140-160

          posted by  tedv on  Sun Jun 1 12:57 CST 2014
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          last visit: Sat Oct 18 10:51 CST 2014
          [RELATED]

          You are right, but on this car the red is spliced onto the yellow, so yeah, we are talking about the same thing-- it has constant 12v with the key on.







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