| id get some contact cleaner and clean the gauge contacts on the back of the cluster... also im kinda leaning towards bad grounding also... check to make sure none of your ground wires are pinched or loose under the dash below the steering wheel... if neither of these work then i would give it a shot at replacing the ground wires but this is a pretty big job because there are alot of wires but get yourself a spool and find sometime and its not too bad a trip.
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I shall NEVER doubt the pirate again...  | 
