ok..tonihgt i was driving home..and my RPM , MPH, and VOltage meters were jumping back and fourth for some odd reason!!! and i wasnt doing nothing at all...could this be my fuses going out? or what? i do have over face guages that i put on and they are not touching n e thing to make it not move..i mean its been fine with them on, just except for tonight....they like jump from 1200rpms to like 200rpms, 40mphs-55mphs, and like half way votalge to like in the red zone volatge....its wierd please help!!!!
randy

 

I've seen that happen when the battery starts to go...Other than that, maybe a loose connection on the back of the cluster or something?

 

I agree with the above about the battery. I was driving my mom's suburban a few weeks ago and it did the same thing. Went into a store and came back and it wouldnt start. Go get the battery checked and sure enough the battery was completly dead.