Wipers will start, really SLOW - go partway up and stop. Then down the road they will slowly finish the job, taking 15 minutes or so. Later they will work OK, but slower than normal. Then OK going up, slow going down. Then it varies.

Motor? Relay? Switch on the column? Temperatures in the high 20's to mid 30's and then up into the 60's. The problem just came on this past week. Glad it was not doing this at 20 below.

I can replace each piece but figure others have had this problem and can point me to the right one to start with.