Dead Tach/speedo/won't shift - 1997 2500 Cummins

Mar 05, 2007 2 Replies

These symptoms must point to something obvious, but I can't find it.



Speedo and tachometer don't move off of zero.



Auto trans (pretty new trans) won't shift out of low.



HELP!



The speed sensor on the trans or it's connection has probably failed. There is also one on the rear axle but the 97 uses the one on the trans for speed indication, at least on the 5 speed and I doubt that they would make it any different on the automatic.

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