Cupillac Posted June 1, 2005 Report Share Posted June 1, 2005 OK, so here we go. I have had this code come up ever since I bought my Cadillac 3 years ago. It comes up as "Service Transmission" I check the codes and its always a History code. Turn the car off and restart and it goes away. The funny thing is when this "Service Transmission" message appears my car shifts vicious! And when I mean vicious, I mean it when I WOT throttle it, the Northstar pulls like never before, its spins all the way through 2nd and slams into third squaking the tires. I had the Transmission fluid flushed 2 years ago and this message only appeared a total of 4 times over the course of two summers. My question is: why would it be so much more aggressive? (seems like theres another 50HP added) Could it be something as simple as a sensor? The previous owener said he had this code for 2 years + my 3 years with the car. Still runs smooth, on any other day the transmission shifts smooth. Any info would be great, because I have to video tape this thing. Its unbelievable how it shifts. Its not like any other 4.6 Northstar, I swear it would shave 1 1/2 seconds off a 1/4 time. Crazy stuff. "Cadillac, it's not a car, it's an obsession" -W.Kingdon Link to comment Share on other sites More sharing options...
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