new member with some problems w/tach

silverrex4

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Mar 6, 2016
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Ok, was able to work on the truck, put on the new circuit board, tested everything, I'm getting power all the way to the 4 gauge prongs on the back of the gauge. Still nothing, I was getting a little pulsing from the gauge but then it goes dead. My only other thing I'm thinking is that the Guage is bad. Any other help will be appreciated
 
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