Persistent PO740 Code on 1997 960

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sos1967 - 12 Apr 2007 18:52 GMT

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?

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Mike F - 17 Apr 2007 14:04 GMT

> 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,
[quoted text clipped - 3 lines]
>
> Any suggestions on what the problem could be?

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.

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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.)

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