2004 Buick Century Q&A

2004 Buick Century Question: My car is starting not to shift right.

I had my transmission rebuilt about 3 years age. My ABS light is on and my no trac light is on. My car is not shifting right. Sometimes when I would stop and shut the car off for a few minutes it would start shifting again. Could the cause of that be the transmission again or could it be something else. -
Answer 1
yes scan codes and post so we can adv.abs codes can cause many issues -
Comment 1
The code came up vehicle speed sensor. The speedometer quit working to. -
Answer 2
it could be the transmission modulator on the trans,and that is not expensive... -
Comment 1
We tried the speed sensor and it is doing the same thing. Other codes that came up are PO 502, PO503, C1216, C1221, C1225, C1226,C1232, C1233, C1245, C1248. Help I hope this doesn't mean the transmission needs to be rebuilt. -
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