gauges on 2003 Chevrolet Silverado 2500 HD

my dash gauges will come on sometimes and then other times will not work for a week or so . only thing that comes on when you turn the key is check eng lite , then goes off when you start the veh. like normal. truck runs normal whether guages work ing or not. some what mech. probly ground problem i think but where to start any ideas, heard of this before? also they seem to work more when raining

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2 answers
I think what you have is a bad cluster. If the truck is less than 7 years old and 70000 miles it maybe covered under a Special Policy that GMC had on the clusters for this problem.
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