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'85 740 GLE, hard to start. 700 1985

Hi all,
I have a '85 744 with 175K on it. I put in a new starter couple of months ago, but it still takes 2 tries to get the car started, once in a while it will start on 1 longer try. I have tuned it up with new plugs, oil, cap and rotor and even cleaned out the throttle butterfly area and the flame trap. What am i missing or do they all just start like this?

Confused in North Dakota.
Leon








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    '85 740 GLE, hard to start. 700 1985

    Rumour has it the checkvalve at the fuel pump fails causing the symptoms you describe.








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      '85 740 GLE, hard to start. 700 1985

      is the check valve on the intank pump or the out of tank pump? would i need to replace the whole pump?

      Thank you all,
      Leon








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        '85 740 GLE, hard to start. 700 1985

        It's on the output of the main pump, and it can be replaced separately. About $15 bucks at the dealer. Be prepared to deal with spilled fuel- goggles, etc.







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