If I try any other speed there dead how do I fix it I have a 06 trailblazer
Try to avoid using the rig in light drizzle situations. Play usage for dry days or when it is full blown 'cats and dogs' downpour!! Practice using the switch continually to make them wiper only intermittently. Remove the windshield and tough it out till you get the rig to the Chevy dealer.
Needs new wiper blades, Though if you have been using them like this for a while then you need to replace the wiper motors.
There is a dealer TSB on this: 2006 Chevrolet Trailblazer Visibility Service Bulletin 135026 NHTSA: Action Number: 10008492 Service Bulletin Number: 135026 * Report Date: Oct 01, 2005 * Component: Visibility * Summary: Windshield wiper motor module assemblies. *mj Call your dealer.
