Hello everyone! I have a customer with '08 corvette and thinks he has problem with his interm wipers! When wipers on fastest delay in parked position wipers will sweep about every four counts, but when moving at speed wipers will sweep about every two counts. I believe this to be normal function of car. I can't find any GM bulletins talking about this at all! Customer doesn't drive much in rain so he hasn't noticed it before. But he is very close to warranty to be up so he's addimit that there maybe something wrong. Anybody familiar whith this, any help would be appreciated!