Have a Goodman GMH8 furnace that is seven years old. The draft inducer motor goes on for about 2 seconds then shuts off and then keeps cycling until I shut the furnace off. It has been doing this for days. Its not the thermostat. I have seen this same post on here before but they never replied once it was fixed.
Any advice would be greatly appreciated. Thank You.

First thing to do is to remove the inducer hose and make sure the ports are open. Check for leaks in the hose. The inducer switch works 2 ways. First, it must be open and then closes with pressure or vac depending on system. Make sure the vent (S) are open. I have seen birds, wasps and others plug the intake or exhaust vent pipe on 90% heaters. Make sure the vent pipe isn't constricted or plugged if a lower efficiency heater. I saw one unit where a tree branch collapsed the storm cover on the vent pipe. How many hoses on the switch? 1 for 80-85%, 2 for 90% or higher.