Persistent PO740 Code on 1997 960

Discussion in 'Volvo 960' started by sos1967, Apr 12, 2007.

  1. sos1967

    sos1967 Guest

    After driving on the highway for some time above 55mph(80km/h) the up-
    arrow on my dashboard will suddenly begin to flash; at the same time,
    the drive mode selector lights on the gear goes berserk. The gear
    shifts fine without any problem. I got the car scanned at a local
    workshop and it came with error code PO740.

    Any suggestions on what the problem could be?
    sos1967, Apr 12, 2007
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  2. sos1967

    Mike F Guest

    P0740 indicates torque convertor lockup malfunction. This means the
    lockup clutch inside the torque convertor is slipping - I would suggest
    a complete transmission fluid flush if it is not pink like it should be.

    Mike F.
    Thornhill (near Toronto), Ont.

    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, Apr 17, 2007
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