'89 740 Belching Black Smoke

Discussion in 'Volvo 740' started by Kirk Grau, Nov 3, 2004.

  1. Kirk Grau

    Kirk Grau Guest

    OK I have been helped her before. My non-turbo 740 was belching black smoke
    a while back and I was able to remedy things by cleaning up the contacts at
    the air mass meter. At least I thought I had. The last few days the
    symptoms are appearing again and my fix is not working this time. Where can
    I be looking next.

    Thanks,

    Kirk
     
    Kirk Grau, Nov 3, 2004
    #1
  2. Kirk Grau

    Robert Dietz Guest

    Check the vacuum hose at the fuel pressure regulator. If it has fuel in
    it, replace the regulator.

    Bob
     
    Robert Dietz, Nov 4, 2004
    #2
  3. Kirk Grau

    blurp Guest

    Replacing my O2 sensor fixed that problem for me.

    blurp
     
    blurp, Nov 4, 2004
    #3
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