Why the wipers work on my 1998 Tahoe motor sounds like it is running?
The wiper motor in your 1998 Tahoe is likely running because the wiper switch is turned on. Check to make sure that the wiper switch is in the Off position. If the switch is off and the wipers are still running, there may be a problem with the wiper motor or the wiring. You should have the vehicle inspected by a qualified mechanic to determine the cause of the problem.