Two problems related to rear window wiper washer have been reported for the 1998 Chevrolet 1500. The most recently reported issues are listed below.
Windshield wipers failed to operate all the time. They will work some times, but never when you need them to. This has been on going since October of 2002.
Consumer states sometimes windshield wipers work and sometimes they don't work. The problem is intermittent.