The black plastic bezel snaps off around the instrument cluster if you use a flat plastic lever. Harbor Freight sells a set of plastic levers for cheap that do the job well. Down under the steering wheel there are some plastic panels that will need to be removed that hide some screws that allow you to remove the gauge cluster. I would recommend swapping the whole cluster with another from a junk yard, rather than trying to disassemble the cluster. Be careful disconnecting the speedometer cable. You have to slide your hand behind the cluster and pinch the end of the cable close to the back of the cluster and pull it off. The rest of the connectors simply pull off when you pinch them. The typical problem with a bad gauge is a bad voltage regulator on the cluster, which is one of the reason I suggest just using a junk part. It could also be a bad sender in the tank, as well.
Try replacing the gauge cluster. 93' LeMans should cost you $15-20 at a wrecking yard.
How to replace a firing pin from a Charles Daly 20-gauge semi automatic
Replace the sender unit
sounds like the fuel sensor inthe fuel tank which means removing tank to replace
you will need to replace the fuel sensor and it is all in one with the fuel pump its in the gas tank.
Go to a Pontiac Mechanic and spend a few bucks.
Because it is a Pontiac. Sorry, man.
10 gauge shotgun
$350
replace temperature gauge
what is a revalation 12 gauge auto worth in poor condition
Most of the time it is the sending unit inside the fuel tank. This is a single pump. sensor assembly. Drop the tank and replace the pump and sensor.