Quote:
Originally Posted by nemo
If I do it correctly I can reach 4th with it locked up at 38 to 40 mph (61 to 64 kph). After some checking my transmission has overdrive gear for 4th at .7 and a final drive ratio of 3.05.
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What do you mean by "do it correctly"? My car has to go up to 47mi to downshift and I have the same 0.7 4th gear and 3.05 final drive.
Is there a chance GM changed the shift points on our ETM's? Minor change in the code I imagine and presto, lower shifts. If I only knew how to do it to mine...
What rpm's are you holding when it drops to 4th? It must be close to 1100 or so.