Speedometer stopped working on my buick 1992 roadmaster. what do I do?

press the helpful button and check links below, it is a 1993 manual, should be the same.
one fuse panel on that vehicle. It's on the driver side end of dash, you have to open the driver door to get at it. The box is under the hood, labeled relay center I believe. http://www.vadengmpp.com/owners-manual/buick/1993-Buick-RoadMaster.pdf

Buick Workshop Manuals

1992 Buick Roadmaster the tail lights nor dash lights work tried replacing...

If it's cable driven, may be a bad cable.. if it's electronic, may be a loose plug connection, a broken wire, a bad sendure unit, or just a bad guage.

1992 Buick Roadmaster Estate Wagon
5.0 liter V-8 This should work. #1 is bottom right on distributer

Could have a bad relay for the blower motor. Sometimes shops will replace both the blower fan and the relay(s) together when repairing this problem.

Speed sensor or cluster needs to be replaced

try to flush the heater core this should fix the problem

it prolly has an electroinic lowering device that lowers the trunk try pushing the pop the trunk button a few times and shutting it hard and if that dosent work try a fuse should say about it in the owners manual

dissconect battery, remove flywheel cover,remove 2 bolts holding starter, now drop starter and remove wiring and take out,

Probably the speedometer cable needs to be removed and lubricated.

I don't know if it applies to the '92 Roadmaster or not, but I do know that some vehicles will do that if a bulb is burned out. I had a car that did the same thing, where one direction would not blink, but the other would, and the hazard lights worked fine. Replacing a bulb fixed the problem.