the speedometer, tacgometer shows duoble.


Asked by Apr 26, 2013 at 12:19 AM about the 1991 Pontiac Trans Sport 3 Dr SE Passenger Van

Question type: Maintenance & Repair

the speedometer, tachometer shows duoble. You drive 40 mph show 80 mph . same with

2 Answers


Interesting. Haven't heard hat one before. Did it start all of a sudden? The signals come from the ECU so there might be a problem there. You could plug in a scanner and see what is being sent. If it's sending good data, it could be the gauge cluster.


data ok,cluster ok to. i don't know what can be else?!

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