i fixed mine by changin/checkin the fuse in the fuse box! blew it a couple of times at first , so i , too figured it was the solenoid, itself. not so. do u have a spot in your fusebox for the overdrive?? if so, try givin it a good cleaning, and a fresh fuse, AND, check all the connections on/goin to the tranny from the solenoid, another Ground gremlin, possibly? let me know, as always, i try to gather and keep all the info, just in case i run into something like this on my daughter's '85 244 DL, and will happily pass along all the good intel i've recieved from the member on this board. i belong to another club/ forum for my '78 924, but we're so spread out all over the globe, sometimes it takes days to retrieve info from the gurus that reside over those groups, thank God they are always on the mark!also, check the actual button switch on the gear selector knob in your car, as i found this had been replaced once, causin mine not to connect properly.. hope this helps! louis