Olds transmissioin vary by year model. Around the mid eighties, they went to shifting eletronically, and few reports of a problem like yours. But....the models prior had this problem, and I had one, and decided to live with it rather than fix it. I was told at the time that there are a few adjustments that can be mmade to eliminate the problem, and they are kind of interdependent on each other, and a bit difficult to get perfact. My 85 model 98 was a really nice car, driven mostly in warm climate, so the effects of the problem were minimal, excapt for short periods of time when working in Ohio or Utah in the winter time. I found that the car needed to be warmed up anyway, so didn't bother to have it fixed, because operating in the far north was not too long or very often. I would think it should be cheap to have fixed, but really have no idea what the cost would cost . Transmissions are very complrx, so take to a good shop. Most good ones will listen, and advise you before they start work. This has something to do with the vacuum produced bt the engine, and could be a ten-minute fix, if you are lucky. I ran my 98 without fixing it for many years...Lots of luck...1bobrobertt
