I have a digital instrument panel and my fuel gauge stopped working. My speedometer and odometer blink and flash and will go out completely. I can usually smack the dash and they'll come back on for a little while and other times I'll have to pull over and shut the car off and start it and they'll come back on. I also have issues when I try and use my wipers and go from high beems to low.

SOURCE: none of the instruments in

check the fuses

SOURCE: instrument panel and ac will blink off randomly while driving or when you crank the car the these come on after a delay period

we checked.....the fuses, all of the wires from the instrument panel, and the grounds from the cluster connection to the fuses and all seemed to be normal. We couldn't find the main master ground, but all of the wires from the cluster seemed to be grounded correctly. We think the problem has to be the custer going bad. it has 126000 miles on the instrument panel. We have another ordered, but only because that is the last resort to fixing the problem. I know it is a weird temp fix, but my husband found a mild tap on top seems to jolt it just enough to make it start working again for a short while until the new cluster arrives.

SOURCE: starts shuts off all lights on instrument panel when finaly start

Sounds like you have a wiring short sometimes grease and dirt corrode the wiring under the hood examine all the wiring under hood ex specially any wiring next to exhaust and under motor.

SOURCE: dash gauges to include fuel

GM had gauge cluster problems from 2000-2005. Bad stepper motors. On those units you have to replace the cluster or rebuild it with new stepper motors. Dealership can fix for around $150.00

SOURCE: odometer is working but the speedometer is not

No, it is the vehicle speed sensor. This part is between 40 and 90 dollars. and is relatively easy to replace. It is located at the output shaft of the transmission.