Speedometer, Odometer, Transmission

Today, my 1996 Buick Riviera with supercharger and 120K miles has developed a problem. Both the odometer and speedometer have stopped working. In addition,the transmission is whinning and the car’s performance is poor—poor acceleration and high taching before shifting. I have not checked tranaxle fluid level yet. Any idea what this problem mght be?   In addition, he Check Engine Light is On.  Thanks

1 thought on “Speedometer, Odometer, Transmission”

  1. First check fluid level, whining is an indication of low fluid. IF you have a leak and have been driving on it with low fluid you may have damaged the transmission to where it may need rebuilt.

    Second, have the computer codes scanned to help aid in the diagnosis.

    it is possible that the speed sensor is damaged in the transmission causing bad reading on the dash gauges.

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