We have a 2005 Chevy Cobalt that‘s developing an annoying vibration from the windshield wipers at high speed. I replaced the blades just before winter.
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clean the windshield and apply rain x to it, this will help wipers glide over the glassbeing thats it's an 05 you should still have warrenty on it, take to dealer and have them check it out.might be broken spring for the wiper tension
Mine was doing the same thing, when I took it in they said the wiper arm was coming apart. Probably need to get it checked out.
Had the same problem with my 03 Crown Vic. Try changing the wiper blades again with a high quality blade.Some time the blades that come from the factory are cheap and poor quality. I switche to motorcraft and the problem dissapeared. If no luck there take it in and have it checked, your wiper arms might be on to tight and need to be loosened.
