gauges on 1993 Buick Roadmaster

my odometer, speedometer and voltage guage work on ocassion,and sometimes when i tap on them...mechanic said needs to be rebuilt ($800.00) open to suggestions

Asked by for the 1993 Buick Roadmaster
Did you have this repaired? I've seen there are some online companies that make these repairs, check
1 more answer
sounds like you have a loose wire that is intermittently shorting out. it's the feed (hot) wire which supplies voltage to all three. It's probably behind tghe dash. you might be able to fix it from under the dash, but it'll take a while and will be very cramped. HTH