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Joe Russo

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  1. Greetings. I am new to the group and had a question regarding my Tachometer. It is on a 2005 Mack Granit CV713 Dump Truck. I had the instrument trim out today to repair a crack in it. While I had the cover out I decided to wipe down the gauges. I moved the Tach needle out of position. After repositioning the needle back to where it should be I start the truck up and the needle points downward. While the truck is running I moved the needle with my finger to 650 RPM's. When I press on the accelerator the Tach responds normal. When I turn the truck off it goes straight down to the six o'clock position. Than when I start the truck back up the needle does not move. Is there a way to reset the electronic Tachometer?

    1. Joey Mack

      Joey Mack

      I dont know,, sorry.  did you try to unplug the cluster and reposition the needle then plug it back in and cycle the key?  thats all i got at this time..i have had many of them out and never cause the issue you have.  interesting??  Jojo

    2. Joe Russo

      Joe Russo

      I will try that. Thanks!!

    3. Joey Mack

      Joey Mack

      BTW, My last name is Ronzo,,,  close....   :) 

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